A New Approach to Optically Active 1,2-Diaryl-1,2-diaminoethanes and 1,2-Diaryl-2-aminoethanols

Yuki Gosei Kagaku Kyokaishi/Journal of Synthetic Organic Chemistry

Volumn 56, Issue 8, 1998, Pages 672-680

  Shimizu, Makoto ^a   Fujisawa, Tamotsu ^a  

^a MIE UNIVERSITY   (Japan)

Author keywords

(+) Camphorsulfonicacid; 1,2 Diaryl 1,2 diaminoethane; 2 Amino 1,2 diarylethanols; Imino pinacol coupling; L Threonine; Oxazaborolidine

Indexed keywords

EID: 1542526933     PISSN: 00379980     EISSN: None     Source Type: Journal    
DOI: 10.5059/yukigoseikyokaishi.56.672     Document Type: Article

References (105)

1. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K.Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
2. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K.Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
3. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K.Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
4. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K.Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
5. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K.Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
6. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K.Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
7. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K.Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
8. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K.Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
9. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K.Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
10. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K.Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
11. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K.Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
12. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K.Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
13. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K.Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
14. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K.Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
15. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K.Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
16. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K.Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
17. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K.Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
18. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K.Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
19. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K.Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
20. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K.Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
21. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K.Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
22. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K.Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
23. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K.Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
24. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K.Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
25. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K.Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
26. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K.Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
27. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K. Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801
28. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K. Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
29. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K. Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
30. EJ. Corey, R. Imwinkelried, S. Pikul, Y.B, Xiang, J. Am. Chem. Soc., 111, 5493 (1989); EJ. Corey, C.-M. Yu, S.S. Kim, ibid., 111, 5495 (1989); E.J. Corey, P. DaSilva, S. Virgil, P.-W. Yuen, R.D. Connell. ibid., 111, 9243 (1989); E.J. Corey, C.-M. Yu, D.-H. Lee, ibid., 112, 878 (1990); E.J. Corey, S.S. Kim, ibid., 112, 4976 (1990); E.J. Corey, D.-H. Lee, ibid., 113, 4026 (1991); W. Sankhavasi, M. Yamamoto, S. Kohmoto, K. Yamada, Bull. Chem. Soc. Jpn., 64, 1425 (1991); H. Takahashi, M. Yoshioka, M. Ohno, S. Kobayashi, Tetrahedron Lett., 33, 2575 (1992); T. Mukaiyama, T. Yamada, T. Nagata, K. Imagawa, Chem. Lett., 1993, 327; S. Hanessian, A. Gomtsyan, Tetrahedron Lett., 35, 7509 (1994); K. Fujimoto, T. Nakai, ibid., 35, 5019 (1994); S. Kanemasa, S. Hamura, E. Harada, H. Yamamoto, ibid., 35, 7985 (1994); A. Alexakis, J.C. Frutos, P. Mangeney, A.I. Meyers, H. Moorlog, ibid., 35, 5125 (1994); S.G. Davis, G.B. Evans, A.A. Mortlock, Tetrahedron: Asymm., 5, 585 (1994); B.M. Trost, M.G. Organ, J. Am. Chem. Soc., 116, 10320 (1994); H. Sasaki, R. Irie, T. Hamada, K. Suzuki, T. Katsuki, Tetrahedron, 50, 11827 (1994); M. Palucki, P.J. Pospiisil, W. Zhang, E.N. Jacobsen, J. Am. Chem. Soc., 116, 9333 (1994); M. Fieser, "Reagents for Organic Synthesis", John Wiley & Son Inc., New York, (1992) Vol.16, pp. 153-158, and the references therein; K. Saigo, A. Kasahara, S. Ogawa, H. Nohira, Tetrahedron Lett., 24, 511 (1983); P.J. Sinclair, D. Zhai, J. Reibenspies, R.M. Williams, J. Am. Chem. Soc., 108, 1103 (1986); L.S. Hegedus, G. de Weck, S. D'Andrea, ibid., 110, 2122 (1988); J.-M. Vernier, L.S. Hegedus, D.B. Miller, J. Org. Chem., 57, 6914 (1992); L.S. Jian, J. Yaozhong, M. Aiqiao, Tetrahedron: Asymm., 3, 1467 (1992); J.J. Masters, L.S. Hegedus, J. Org. Chem., 58, 4547 (1993); G.J. Quallich, T.M. Woodall, Tetrahedron Lett., 34, 4145 (1993); J. Kang, D.S. Kim, J.I. Kim, Synlett, 1994, 842; Y. Hashimoto, K. Takaoki, A. Sudo, T. Ogasawara, K. Saigo, Chem. Lett., 1995, 235; A.M.C.H. van den Nieuwendijk, E.G.J.C. Warmerdam, J. Brussee, A. van der Gen, Tetrahedron: Asymm., 6, 801 (1995); G.J. Quallich, K.N. Keavey, T.M. Woodall, Tetrahedron Lett., 36, 4729 (1995); A. Yanagisawa, T. Kuribayashi, T. Kikuchi, H. Yamanioto, Angew. Chem., Int. Ed. Engl., 33, 107 (1994);
31. (a) K. Saigo, N. Kubota, S. Takebayashi, M. Hasegawa, Bull. Chem. Soc. Jpn., 59, 931 (1986); (b) S. Pikul, E.J. Corey, Org. Synth., 71, 22 (1992); (c) E.J. Corey, D.-H. Lee, S. Sarshar, Tetrahedron: Asymm., 6, 3(1995); (d)E.J. Corey, F.N.M. Kuhnle, Tetrahedron Lett., 38, 8631 (1997). (e) K. Saigo, S. Ogawa, S. Kikuchi, A. Kasahara, H. Nohira, Bull. Chem. Soc. Jpn., 55, 1568 (1982); (f) K. Saigo, I. Sugiura, I. Shida, K. Tachibana, M. Hasegawa, ibid., 59, 2915 (1986)
32. (a) K. Saigo, N. Kubota, S. Takebayashi, M. Hasegawa, Bull. Chem. Soc. Jpn., 59, 931 (1986); (b) S. Pikul, E.J. Corey, Org. Synth., 71, 22 (1992); (c) E.J. Corey, D.-H. Lee, S. Sarshar, Tetrahedron: Asymm., 6, 3(1995); (d)E.J. Corey, F.N.M. Kuhnle, Tetrahedron Lett., 38, 8631 (1997). (e) K. Saigo, S. Ogawa, S. Kikuchi, A. Kasahara, H. Nohira, Bull. Chem. Soc. Jpn., 55, 1568 (1982); (f) K. Saigo, I. Sugiura, I. Shida, K. Tachibana, M. Hasegawa, ibid., 59, 2915 (1986)
33. (a) K. Saigo, N. Kubota, S. Takebayashi, M. Hasegawa, Bull. Chem. Soc. Jpn., 59, 931 (1986); (b) S. Pikul, E.J. Corey, Org. Synth., 71, 22 (1992); (c) E.J. Corey, D.-H. Lee, S. Sarshar, Tetrahedron: Asymm., 6, 3(1995); (d)E.J. Corey, F.N.M. Kuhnle, Tetrahedron Lett., 38, 8631 (1997). (e) K. Saigo, S. Ogawa, S. Kikuchi, A. Kasahara, H. Nohira, Bull. Chem. Soc. Jpn., 55, 1568 (1982); (f) K. Saigo, I. Sugiura, I. Shida, K. Tachibana, M. Hasegawa, ibid., 59, 2915 (1986)
34. (a) K. Saigo, N. Kubota, S. Takebayashi, M. Hasegawa, Bull. Chem. Soc. Jpn., 59, 931 (1986); (b) S. Pikul, E.J. Corey, Org. Synth., 71, 22 (1992); (c) E.J. Corey, D.-H. Lee, S. Sarshar, Tetrahedron: Asymm., 6, 3(1995); (d)E.J. Corey, F.N.M. Kuhnle, Tetrahedron Lett., 38, 8631 (1997). (e) K. Saigo, S. Ogawa, S. Kikuchi, A. Kasahara, H. Nohira, Bull. Chem. Soc. Jpn., 55, 1568 (1982); (f) K. Saigo, I. Sugiura, I. Shida, K. Tachibana, M. Hasegawa, ibid., 59, 2915 (1986)
35. (a) K. Saigo, N. Kubota, S. Takebayashi, M. Hasegawa, Bull. Chem. Soc. Jpn., 59, 931 (1986); (b) S. Pikul, E.J. Corey, Org. Synth., 71, 22 (1992); (c) E.J. Corey, D.-H. Lee, S. Sarshar, Tetrahedron: Asymm., 6, 3(1995); (d)E.J. Corey, F.N.M. Kuhnle, Tetrahedron Lett., 38, 8631 (1997). (e) K. Saigo, S. Ogawa, S. Kikuchi, A. Kasahara, H. Nohira, Bull. Chem. Soc. Jpn., 55, 1568 (1982); (f) K. Saigo, I. Sugiura, I. Shida, K. Tachibana, M. Hasegawa, ibid., 59, 2915 (1986)
36. (a) K. Saigo, N. Kubota, S. Takebayashi, M. Hasegawa, Bull. Chem. Soc. Jpn., 59, 931 (1986); (b) S. Pikul, E.J. Corey, Org. Synth., 71, 22 (1992); (c) E.J. Corey, D.-H. Lee, S. Sarshar, Tetrahedron: Asymm., 6, 3(1995); (d)E.J. Corey, F.N.M. Kuhnle, Tetrahedron Lett., 38, 8631 (1997). (e) K. Saigo, S. Ogawa, S. Kikuchi, A. Kasahara, H. Nohira, Bull. Chem. Soc. Jpn., 55, 1568 (1982); (f) K. Saigo, I. Sugiura, I. Shida, K. Tachibana, M. Hasegawa, ibid., 59, 2915 (1986)
37. D. Pini, A. Iuliano, C. Rosini, P. Salvadori, Synthesis, 1990, 1023;
38. B.B. Lohray, J.R. Ahuja, J. Chem. Soc., Chem. Commun., 1991, 95
39. H.-T. Chang, K.B. Sharpless, Tetrahedron Lett., 37, 3219 (1996); G. Li, H.-T. Chang, K.B. Sharpless, Angew. Chem., Int. Ed. Engl., 35, 451 (1996)
40. H.-T. Chang, K.B. Sharpless, Tetrahedron Lett., 37, 3219 (1996); G. Li, H.-T. Chang, K.B. Sharpless, Angew. Chem., Int. Ed. Engl., 35, 451 (1996)
41. F. Effenberger, B. Gutterer, T. Ziegler, Liebigs Ann. Chem., 1991, 269; M.T. Reetz, R. Jaeger, R. Drewlies, M. Hubel, Angew. Chem., Int. Ed. Engl., 30, 103 (1991); N. Kise, K. Kashiwagi, M. Watanabe, J. Yoshida, J. Org. Chem., 61, 428 (1996)
42. F. Effenberger, B. Gutterer, T. Ziegler, Liebigs Ann. Chem., 1991, 269; M.T. Reetz, R. Jaeger, R. Drewlies, M. Hubel, Angew. Chem., Int. Ed. Engl., 30, 103 (1991); N. Kise, K. Kashiwagi, M. Watanabe, J. Yoshida, J. Org. Chem., 61, 428 (1996)
43. F. Effenberger, B. Gutterer, T. Ziegler, Liebigs Ann. Chem., 1991, 269; M.T. Reetz, R. Jaeger, R. Drewlies, M. Hubel, Angew. Chem., Int. Ed. Engl., 30, 103 (1991); N. Kise, K. Kashiwagi, M. Watanabe, J. Yoshida, J. Org. Chem., 61, 428 (1996)
44. J.G. Smith, Can. J. Chem., 44, 59 (1966); J.G. Smith, C.D. Veach, ibid., 44, 2497 (1966); J. G. Smith, I. Ho, J. Org. Chem., 37, 653 (1972); G. Prasad, G. Singh, K.N. Mehrotra, Indian J. Chem., 19B, 653 (1980)
45. J.G. Smith, Can. J. Chem., 44, 59 (1966); J.G. Smith, C.D. Veach, ibid., 44, 2497 (1966); J. G. Smith, I. Ho, J. Org. Chem., 37, 653 (1972); G. Prasad, G. Singh, K.N. Mehrotra, Indian J. Chem., 19B, 653 (1980)
46. J.G. Smith, Can. J. Chem., 44, 59 (1966); J.G. Smith, C.D. Veach, ibid., 44, 2497 (1966); J. G. Smith, I. Ho, J. Org. Chem., 37, 653 (1972); G. Prasad, G. Singh, K.N. Mehrotra, Indian J. Chem., 19B, 653 (1980)
47. J.G. Smith, Can. J. Chem., 44, 59 (1966); J.G. Smith, C.D. Veach, ibid., 44, 2497 (1966); J. G. Smith, I. Ho, J. Org. Chem., 37, 653 (1972); G. Prasad, G. Singh, K.N. Mehrotra, Indian J. Chem., 19B, 653 (1980)
48. J.E. McMurry, Acc. Chem. Res., 7, 281 (1974); T. Mukaiyama, Angew. Chem., 89, 858 (1977); J.E. McMurry, Ace. Chem. Res., 16, 405 (1983)
49. J.E. McMurry, Acc. Chem. Res., 7, 281 (1974); T. Mukaiyama, Angew. Chem., 89, 858 (1977); J.E. McMurry, Ace. Chem. Res., 16, 405 (1983)
50. J.E. McMurry, Acc. Chem. Res., 7, 281 (1974); T. Mukaiyama, Angew. Chem., 89, 858 (1977); J.E. McMurry, Ace. Chem. Res., 16, 405 (1983)
51. F.R. Askham, K.M. Carroll, J. Org. Chem., 58, 7328 (1993); R. Annunziata, M. Cinquini, F. Cozzi, P. Giaroni, M. Benaglia, Tetrahedron, 47, 5737 (1991)
52. F.R. Askham, K.M. Carroll, J. Org. Chem., 58, 7328 (1993); R. Annunziata, M. Cinquini, F. Cozzi, P. Giaroni, M. Benaglia, Tetrahedron, 47, 5737 (1991)
53. A.W. Korradi, S.J. Kemp, S.F. Pederson, J. Am. Chem. Soc., 116, 1316 (1994)
54. E.J. Roskamp, S.F. Pedersen, J. Am. Chem. Soc., 109, 3152 (1987); C. Betschart, D. Seeback, Helv. Chim. Acta, 70, 2215 (1987); C. Betschart, B. Schmidt, D. Seeback, ibid., 71, 1999 (1988); H. Tanaka, H. Dhimane, H. Fujita, Y. Ikemoto, S. Torii, Tetrahedron Lett., 29, 3811 (1988); P. Mangenery, T. Tejero, A. Alexakis, F. Grosjean, J. Normant, Synthesis, 1988, 255; H. Tanaka, T. Nakahara, H. Dhimane, S, Torii, Synlett, 1989, 51; K. Takai, Y. Tsubaki, S. Tanaka, F. Beppu, Y. Fujiwara, Chem. Lett., 1990, 203; T. Imamoto, S. Nishimura, ibid., 1990, 1141; N. Kalyanam, G.V. Rao, Tetrahedron Lett., 34, 1647 (1993)
55. E.J. Roskamp, S.F. Pedersen, J. Am. Chem. Soc., 109, 3152 (1987); C. Betschart, D. Seeback, Helv. Chim. Acta, 70, 2215 (1987); C. Betschart, B. Schmidt, D. Seeback, ibid., 71, 1999 (1988); H. Tanaka, H. Dhimane, H. Fujita, Y. Ikemoto, S. Torii, Tetrahedron Lett., 29, 3811 (1988); P. Mangenery, T. Tejero, A. Alexakis, F. Grosjean, J. Normant, Synthesis, 1988, 255; H. Tanaka, T. Nakahara, H. Dhimane, S, Torii, Synlett, 1989, 51; K. Takai, Y. Tsubaki, S. Tanaka, F. Beppu, Y. Fujiwara, Chem. Lett., 1990, 203; T. Imamoto, S. Nishimura, ibid., 1990, 1141; N. Kalyanam, G.V. Rao, Tetrahedron Lett., 34, 1647 (1993)
56. E.J. Roskamp, S.F. Pedersen, J. Am. Chem. Soc., 109, 3152 (1987); C. Betschart, D. Seeback, Helv. Chim. Acta, 70, 2215 (1987); C. Betschart, B. Schmidt, D. Seeback, ibid., 71, 1999 (1988); H. Tanaka, H. Dhimane, H. Fujita, Y. Ikemoto, S. Torii, Tetrahedron Lett., 29, 3811 (1988); P. Mangenery, T. Tejero, A. Alexakis, F. Grosjean, J. Normant, Synthesis, 1988, 255; H. Tanaka, T. Nakahara, H. Dhimane, S, Torii, Synlett, 1989, 51; K. Takai, Y. Tsubaki, S. Tanaka, F. Beppu, Y. Fujiwara, Chem. Lett., 1990, 203; T. Imamoto, S. Nishimura, ibid., 1990, 1141; N. Kalyanam, G.V. Rao, Tetrahedron Lett., 34, 1647 (1993)
57. E.J. Roskamp, S.F. Pedersen, J. Am. Chem. Soc., 109, 3152 (1987); C. Betschart, D. Seeback, Helv. Chim. Acta, 70, 2215 (1987); C. Betschart, B. Schmidt, D. Seeback, ibid., 71, 1999 (1988); H. Tanaka, H. Dhimane, H. Fujita, Y. Ikemoto, S. Torii, Tetrahedron Lett., 29, 3811 (1988); P. Mangenery, T. Tejero, A. Alexakis, F. Grosjean, J. Normant, Synthesis, 1988, 255; H. Tanaka, T. Nakahara, H. Dhimane, S, Torii, Synlett, 1989, 51; K. Takai, Y. Tsubaki, S. Tanaka, F. Beppu, Y. Fujiwara, Chem. Lett., 1990, 203; T. Imamoto, S. Nishimura, ibid., 1990, 1141; N. Kalyanam, G.V. Rao, Tetrahedron Lett., 34, 1647 (1993)
58. E.J. Roskamp, S.F. Pedersen, J. Am. Chem. Soc., 109, 3152 (1987); C. Betschart, D. Seeback, Helv. Chim. Acta, 70, 2215 (1987); C. Betschart, B. Schmidt, D. Seeback, ibid., 71, 1999 (1988); H. Tanaka, H. Dhimane, H. Fujita, Y. Ikemoto, S. Torii, Tetrahedron Lett., 29, 3811 (1988); P. Mangenery, T. Tejero, A. Alexakis, F. Grosjean, J. Normant, Synthesis, 1988, 255; H. Tanaka, T. Nakahara, H. Dhimane, S, Torii, Synlett, 1989, 51; K. Takai, Y. Tsubaki, S. Tanaka, F. Beppu, Y. Fujiwara, Chem. Lett., 1990, 203; T. Imamoto, S. Nishimura, ibid., 1990, 1141; N. Kalyanam, G.V. Rao, Tetrahedron Lett., 34, 1647 (1993)
59. E.J. Roskamp, S.F. Pedersen, J. Am. Chem. Soc., 109, 3152 (1987); C. Betschart, D. Seeback, Helv. Chim. Acta, 70, 2215 (1987); C. Betschart, B. Schmidt, D. Seeback, ibid., 71, 1999 (1988); H. Tanaka, H. Dhimane, H. Fujita, Y. Ikemoto, S. Torii, Tetrahedron Lett., 29, 3811 (1988); P. Mangenery, T. Tejero, A. Alexakis, F. Grosjean, J. Normant, Synthesis, 1988, 255; H. Tanaka, T. Nakahara, H. Dhimane, S, Torii, Synlett, 1989, 51; K. Takai, Y. Tsubaki, S. Tanaka, F. Beppu, Y. Fujiwara, Chem. Lett., 1990, 203; T. Imamoto, S. Nishimura, ibid., 1990, 1141; N. Kalyanam, G.V. Rao, Tetrahedron Lett., 34, 1647 (1993)
60. E.J. Roskamp, S.F. Pedersen, J. Am. Chem. Soc., 109, 3152 (1987); C. Betschart, D. Seeback, Helv. Chim. Acta, 70, 2215 (1987); C. Betschart, B. Schmidt, D. Seeback, ibid., 71, 1999 (1988); H. Tanaka, H. Dhimane, H. Fujita, Y. Ikemoto, S. Torii, Tetrahedron Lett., 29, 3811 (1988); P. Mangenery, T. Tejero, A. Alexakis, F. Grosjean, J. Normant, Synthesis, 1988, 255; H. Tanaka, T. Nakahara, H. Dhimane, S, Torii, Synlett, 1989, 51; K. Takai, Y. Tsubaki, S. Tanaka, F. Beppu, Y. Fujiwara, Chem. Lett., 1990, 203; T. Imamoto, S. Nishimura, ibid., 1990, 1141; N. Kalyanam, G.V. Rao, Tetrahedron Lett., 34, 1647 (1993)
61. E.J. Roskamp, S.F. Pedersen, J. Am. Chem. Soc., 109, 3152 (1987); C. Betschart, D. Seeback, Helv. Chim. Acta, 70, 2215 (1987); C. Betschart, B. Schmidt, D. Seeback, ibid., 71, 1999 (1988); H. Tanaka, H. Dhimane, H. Fujita, Y. Ikemoto, S. Torii, Tetrahedron Lett., 29, 3811 (1988); P. Mangenery, T. Tejero, A. Alexakis, F. Grosjean, J. Normant, Synthesis, 1988, 255; H. Tanaka, T. Nakahara, H. Dhimane, S, Torii, Synlett, 1989, 51; K. Takai, Y. Tsubaki, S. Tanaka, F. Beppu, Y. Fujiwara, Chem. Lett., 1990, 203; T. Imamoto, S. Nishimura, ibid., 1990, 1141; N. Kalyanam, G.V. Rao, Tetrahedron Lett., 34, 1647 (1993)
62. E.J. Roskamp, S.F. Pedersen, J. Am. Chem. Soc., 109, 3152 (1987); C. Betschart, D. Seeback, Helv. Chim. Acta, 70, 2215 (1987); C. Betschart, B. Schmidt, D. Seeback, ibid., 71, 1999 (1988); H. Tanaka, H. Dhimane, H. Fujita, Y. Ikemoto, S. Torii, Tetrahedron Lett., 29, 3811 (1988); P. Mangenery, T. Tejero, A. Alexakis, F. Grosjean, J. Normant, Synthesis, 1988, 255; H. Tanaka, T. Nakahara, H. Dhimane, S, Torii, Synlett, 1989, 51; K. Takai, Y. Tsubaki, S. Tanaka, F. Beppu, Y. Fujiwara, Chem. Lett., 1990, 203; T. Imamoto, S. Nishimura, ibid., 1990, 1141; N. Kalyanam, G.V. Rao, Tetrahedron Lett., 34, 1647 (1993)
63. T. Hirao, M. Asahara, Y. Muguruma, A. Ogawa, J. Org. Chem., 63, 2812 (1998)
64. T. Shono, N. Kise, H. Oike, M. Yoshimoto, E. Okazaki, Tetrahedron Lett., 38, 5559 (1992); N. Kise, H. Oike, E. Okazaki, M. Yoshimoto, T. Shono, J. Org. Chem., 60, 3980 (1995)
65. T. Shono, N. Kise, H. Oike, M. Yoshimoto, E. Okazaki, Tetrahedron Lett., 38, 5559 (1992); N. Kise, H. Oike, E. Okazaki, M. Yoshimoto, T. Shono, J. Org. Chem., 60, 3980 (1995)
66. M. Shimizu, T. Iida, T. Fujisawa, Chem. Lett., 1995, 609
67. P. Mangeney, F. Grojean, A. Alexakis, J.F. Normant, Tetrahedron Lett., 29, 2675 (1988)
68. (a) S. Itsuno, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Chem. Commun., 1983, 469; (b) idem, J. Org. Chem., 49, 555 (1984); (c) S. Itsuno, M. Nakano, K. Miyazaki, H. Masuda, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Perkin Trans 1, 1985, 2039; (d) S. Itsuno, M. Nakano, K. Ito, A. Hirao, M. Owa, M. Kanda, S. Nakahama, ibid., 1985, 2615; (e) S. Itsuno, Y. Sakurai, K. Ito, A. Hirao, S. Nakahama, Bull. Chem. Soc. Jpn., 60, 395 (1987); (f) E.J. Corey, R.K. Bakshi, S. Shibata, J. Am. Chem. Soc., 109, 5551 (1987); (g) E.J. Corey, R.K. Bakshi, S. Shibata, C.-P. Chen, V.K. Singh, ibid., 109, 7925 (1987); (h) E.J. Corey, P.D.S. Jardine, J.C. Rohloff, ibid., 110, 3672 (1988); (i) E.J. Corey, S. Shibata, R.K. Bakshi, J. Org. Chem., 53, 2861 (1988); (j) E.J. Corey, C.-P. Chen, G.A. Reichard, Tetrahedron Lett., 30, 5547 (1989). (k) K. Yamada, M. Takeda, T. Iwakuma, J. Chem. Soc., Perkin Trans 1, 1983, 265; (1) R.O. Hutchins, A. Abel -Magid, Y.P. Sterchoy, A. Wambsgans, J. Org. Chem., 52, 702 (1987); (m) S. Itsuno, Y. Sakurai, K. Shimizu, K. Ito, J. Chem. Soc., Perkin Trans 1, 1990, 1859; (n) B.T. Cho, Y.S. Chun, ibid., 1990, 3200; (o) Y.N.C. Chan, J. Osborn, J. Am. Chem. Soc., 112, 9400 (1990); (p) B.T. Cho, Y.S. Chun, Tetrahedron: Asymm., 3, 337, 1583 (1992); (q) T. Kawate, M. Nakagawa, T. Kakikawa, T. Hino, ibid., 3, 227 (1992); (r) C.A. Willoughby, S.L. Buchwald, J. Am. Chem. Soc., 114, 7562 (1992); (s) M. Nakagawa, T. Kawate, T. Kakikawa, H. Yamada, T, Hino, Tetrahedron, 49, 1739 (1993); (t) C. Bolm, M. Felder, Synlett, 1994, 655; refs. 15 c, d, e. V.K. Singh, Synthesis, 1992, 605; L. Deloux, M. Srebnik, Chem. Rev., 93, 763 (1993)
69. (a) S. Itsuno, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Chem. Commun., 1983, 469; (b) idem, J. Org. Chem., 49, 555 (1984); (c) S. Itsuno, M. Nakano, K. Miyazaki, H. Masuda, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Perkin Trans 1, 1985, 2039; (d) S. Itsuno, M. Nakano, K. Ito, A. Hirao, M. Owa, M. Kanda, S. Nakahama, ibid., 1985, 2615; (e) S. Itsuno, Y. Sakurai, K. Ito, A. Hirao, S. Nakahama, Bull. Chem. Soc. Jpn., 60, 395 (1987); (f) E.J. Corey, R.K. Bakshi, S. Shibata, J. Am. Chem. Soc., 109, 5551 (1987); (g) E.J. Corey, R.K. Bakshi, S. Shibata, C.-P. Chen, V.K. Singh, ibid., 109, 7925 (1987); (h) E.J. Corey, P.D.S. Jardine, J.C. Rohloff, ibid., 110, 3672 (1988); (i) E.J. Corey, S. Shibata, R.K. Bakshi, J. Org. Chem., 53, 2861 (1988); (j) E.J. Corey, C.-P. Chen, G.A. Reichard, Tetrahedron Lett., 30, 5547 (1989). (k) K. Yamada, M. Takeda, T. Iwakuma, J. Chem. Soc., Perkin Trans 1, 1983, 265; (1) R.O. Hutchins, A. Abel -Magid, Y.P. Sterchoy, A. Wambsgans, J. Org. Chem., 52, 702 (1987); (m) S. Itsuno, Y. Sakurai, K. Shimizu, K. Ito, J. Chem. Soc., Perkin Trans 1, 1990, 1859; (n) B.T. Cho, Y.S. Chun, ibid., 1990, 3200; (o) Y.N.C. Chan, J. Osborn, J. Am. Chem. Soc., 112, 9400 (1990); (p) B.T. Cho, Y.S. Chun, Tetrahedron: Asymm., 3, 337, 1583 (1992); (q) T. Kawate, M. Nakagawa, T. Kakikawa, T. Hino, ibid., 3, 227 (1992); (r) C.A. Willoughby, S.L. Buchwald, J. Am. Chem. Soc., 114, 7562 (1992); (s) M. Nakagawa, T. Kawate, T. Kakikawa, H. Yamada, T, Hino, Tetrahedron, 49, 1739 (1993); (t) C. Bolm, M. Felder, Synlett, 1994, 655; refs. 15 c, d, e. V.K. Singh, Synthesis, 1992, 605; L. Deloux, M. Srebnik, Chem. Rev., 93, 763 (1993)
70. (a) S. Itsuno, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Chem. Commun., 1983, 469; (b) idem, J. Org. Chem., 49, 555 (1984); (c) S. Itsuno, M. Nakano, K. Miyazaki, H. Masuda, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Perkin Trans 1, 1985, 2039; (d) S. Itsuno, M. Nakano, K. Ito, A. Hirao, M. Owa, M. Kanda, S. Nakahama, ibid., 1985, 2615; (e) S. Itsuno, Y. Sakurai, K. Ito, A. Hirao, S. Nakahama, Bull. Chem. Soc. Jpn., 60, 395 (1987); (f) E.J. Corey, R.K. Bakshi, S. Shibata, J. Am. Chem. Soc., 109, 5551 (1987); (g) E.J. Corey, R.K. Bakshi, S. Shibata, C.-P. Chen, V.K. Singh, ibid., 109, 7925 (1987); (h) E.J. Corey, P.D.S. Jardine, J.C. Rohloff, ibid., 110, 3672 (1988); (i) E.J. Corey, S. Shibata, R.K. Bakshi, J. Org. Chem., 53, 2861 (1988); (j) E.J. Corey, C.-P. Chen, G.A. Reichard, Tetrahedron Lett., 30, 5547 (1989). (k) K. Yamada, M. Takeda, T. Iwakuma, J. Chem. Soc., Perkin Trans 1, 1983, 265; (1) R.O. Hutchins, A. Abel -Magid, Y.P. Sterchoy, A. Wambsgans, J. Org. Chem., 52, 702 (1987); (m) S. Itsuno, Y. Sakurai, K. Shimizu, K. Ito, J. Chem. Soc., Perkin Trans 1, 1990, 1859; (n) B.T. Cho, Y.S. Chun, ibid., 1990, 3200; (o) Y.N.C. Chan, J. Osborn, J. Am. Chem. Soc., 112, 9400 (1990); (p) B.T. Cho, Y.S. Chun, Tetrahedron: Asymm., 3, 337, 1583 (1992); (q) T. Kawate, M. Nakagawa, T. Kakikawa, T. Hino, ibid., 3, 227 (1992); (r) C.A. Willoughby, S.L. Buchwald, J. Am. Chem. Soc., 114, 7562 (1992); (s) M. Nakagawa, T. Kawate, T. Kakikawa, H. Yamada, T, Hino, Tetrahedron, 49, 1739 (1993); (t) C. Bolm, M. Felder, Synlett, 1994, 655; refs. 15 c, d, e. V.K. Singh, Synthesis, 1992, 605; L. Deloux, M. Srebnik, Chem. Rev., 93, 763 (1993)
71. (a) S. Itsuno, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Chem. Commun., 1983, 469; (b) idem, J. Org. Chem., 49, 555 (1984); (c) S. Itsuno, M. Nakano, K. Miyazaki, H. Masuda, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Perkin Trans 1, 1985, 2039; (d) S. Itsuno, M. Nakano, K. Ito, A. Hirao, M. Owa, M. Kanda, S. Nakahama, ibid., 1985, 2615; (e) S. Itsuno, Y. Sakurai, K. Ito, A. Hirao, S. Nakahama, Bull. Chem. Soc. Jpn., 60, 395 (1987); (f) E.J. Corey, R.K. Bakshi, S. Shibata, J. Am. Chem. Soc., 109, 5551 (1987); (g) E.J. Corey, R.K. Bakshi, S. Shibata, C.-P. Chen, V.K. Singh, ibid., 109, 7925 (1987); (h) E.J. Corey, P.D.S. Jardine, J.C. Rohloff, ibid., 110, 3672 (1988); (i) E.J. Corey, S. Shibata, R.K. Bakshi, J. Org. Chem., 53, 2861 (1988); (j) E.J. Corey, C.-P. Chen, G.A. Reichard, Tetrahedron Lett., 30, 5547 (1989). (k) K. Yamada, M. Takeda, T. Iwakuma, J. Chem. Soc., Perkin Trans 1, 1983, 265; (1) R.O. Hutchins, A. Abel -Magid, Y.P. Sterchoy, A. Wambsgans, J. Org. Chem., 52, 702 (1987); (m) S. Itsuno, Y. Sakurai, K. Shimizu, K. Ito, J. Chem. Soc., Perkin Trans 1, 1990, 1859; (n) B.T. Cho, Y.S. Chun, ibid., 1990, 3200; (o) Y.N.C. Chan, J. Osborn, J. Am. Chem. Soc., 112, 9400 (1990); (p) B.T. Cho, Y.S. Chun, Tetrahedron: Asymm., 3, 337, 1583 (1992); (q) T. Kawate, M. Nakagawa, T. Kakikawa, T. Hino, ibid., 3, 227 (1992); (r) C.A. Willoughby, S.L. Buchwald, J. Am. Chem. Soc., 114, 7562 (1992); (s) M. Nakagawa, T. Kawate, T. Kakikawa, H. Yamada, T, Hino, Tetrahedron, 49, 1739 (1993); (t) C. Bolm, M. Felder, Synlett, 1994, 655; refs. 15 c, d, e. V.K. Singh, Synthesis, 1992, 605; L. Deloux, M. Srebnik, Chem. Rev., 93, 763 (1993)
72. (a) S. Itsuno, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Chem. Commun., 1983, 469; (b) idem, J. Org. Chem., 49, 555 (1984); (c) S. Itsuno, M. Nakano, K. Miyazaki, H. Masuda, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Perkin Trans 1, 1985, 2039; (d) S. Itsuno, M. Nakano, K. Ito, A. Hirao, M. Owa, M. Kanda, S. Nakahama, ibid., 1985, 2615; (e) S. Itsuno, Y. Sakurai, K. Ito, A. Hirao, S. Nakahama, Bull. Chem. Soc. Jpn., 60, 395 (1987); (f) E.J. Corey, R.K. Bakshi, S. Shibata, J. Am. Chem. Soc., 109, 5551 (1987); (g) E.J. Corey, R.K. Bakshi, S. Shibata, C.-P. Chen, V.K. Singh, ibid., 109, 7925 (1987); (h) E.J. Corey, P.D.S. Jardine, J.C. Rohloff, ibid., 110, 3672 (1988); (i) E.J. Corey, S. Shibata, R.K. Bakshi, J. Org. Chem., 53, 2861 (1988); (j) E.J. Corey, C.-P. Chen, G.A. Reichard, Tetrahedron Lett., 30, 5547 (1989). (k) K. Yamada, M. Takeda, T. Iwakuma, J. Chem. Soc., Perkin Trans 1, 1983, 265; (1) R.O. Hutchins, A. Abel -Magid, Y.P. Sterchoy, A. Wambsgans, J. Org. Chem., 52, 702 (1987); (m) S. Itsuno, Y. Sakurai, K. Shimizu, K. Ito, J. Chem. Soc., Perkin Trans 1, 1990, 1859; (n) B.T. Cho, Y.S. Chun, ibid., 1990, 3200; (o) Y.N.C. Chan, J. Osborn, J. Am. Chem. Soc., 112, 9400 (1990); (p) B.T. Cho, Y.S. Chun, Tetrahedron: Asymm., 3, 337, 1583 (1992); (q) T. Kawate, M. Nakagawa, T. Kakikawa, T. Hino, ibid., 3, 227 (1992); (r) C.A. Willoughby, S.L. Buchwald, J. Am. Chem. Soc., 114, 7562 (1992); (s) M. Nakagawa, T. Kawate, T. Kakikawa, H. Yamada, T, Hino, Tetrahedron, 49, 1739 (1993); (t) C. Bolm, M. Felder, Synlett, 1994, 655; refs. 15 c, d, e. V.K. Singh, Synthesis, 1992, 605; L. Deloux, M. Srebnik, Chem. Rev., 93, 763 (1993)
73. (a) S. Itsuno, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Chem. Commun., 1983, 469; (b) idem, J. Org. Chem., 49, 555 (1984); (c) S. Itsuno, M. Nakano, K. Miyazaki, H. Masuda, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Perkin Trans 1, 1985, 2039; (d) S. Itsuno, M. Nakano, K. Ito, A. Hirao, M. Owa, M. Kanda, S. Nakahama, ibid., 1985, 2615; (e) S. Itsuno, Y. Sakurai, K. Ito, A. Hirao, S. Nakahama, Bull. Chem. Soc. Jpn., 60, 395 (1987); (f) E.J. Corey, R.K. Bakshi, S. Shibata, J. Am. Chem. Soc., 109, 5551 (1987); (g) E.J. Corey, R.K. Bakshi, S. Shibata, C.-P. Chen, V.K. Singh, ibid., 109, 7925 (1987); (h) E.J. Corey, P.D.S. Jardine, J.C. Rohloff, ibid., 110, 3672 (1988); (i) E.J. Corey, S. Shibata, R.K. Bakshi, J. Org. Chem., 53, 2861 (1988); (j) E.J. Corey, C.-P. Chen, G.A. Reichard, Tetrahedron Lett., 30, 5547 (1989). (k) K. Yamada, M. Takeda, T. Iwakuma, J. Chem. Soc., Perkin Trans 1, 1983, 265; (1) R.O. Hutchins, A. Abel -Magid, Y.P. Sterchoy, A. Wambsgans, J. Org. Chem., 52, 702 (1987); (m) S. Itsuno, Y. Sakurai, K. Shimizu, K. Ito, J. Chem. Soc., Perkin Trans 1, 1990, 1859; (n) B.T. Cho, Y.S. Chun, ibid., 1990, 3200; (o) Y.N.C. Chan, J. Osborn, J. Am. Chem. Soc., 112, 9400 (1990); (p) B.T. Cho, Y.S. Chun, Tetrahedron: Asymm., 3, 337, 1583 (1992); (q) T. Kawate, M. Nakagawa, T. Kakikawa, T. Hino, ibid., 3, 227 (1992); (r) C.A. Willoughby, S.L. Buchwald, J. Am. Chem. Soc., 114, 7562 (1992); (s) M. Nakagawa, T. Kawate, T. Kakikawa, H. Yamada, T, Hino, Tetrahedron, 49, 1739 (1993); (t) C. Bolm, M. Felder, Synlett, 1994, 655; refs. 15 c, d, e. V.K. Singh, Synthesis, 1992, 605; L. Deloux, M. Srebnik, Chem. Rev., 93, 763 (1993)
74. (a) S. Itsuno, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Chem. Commun., 1983, 469; (b) idem, J. Org. Chem., 49, 555 (1984); (c) S. Itsuno, M. Nakano, K. Miyazaki, H. Masuda, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Perkin Trans 1, 1985, 2039; (d) S. Itsuno, M. Nakano, K. Ito, A. Hirao, M. Owa, M. Kanda, S. Nakahama, ibid., 1985, 2615; (e) S. Itsuno, Y. Sakurai, K. Ito, A. Hirao, S. Nakahama, Bull. Chem. Soc. Jpn., 60, 395 (1987); (f) E.J. Corey, R.K. Bakshi, S. Shibata, J. Am. Chem. Soc., 109, 5551 (1987); (g) E.J. Corey, R.K. Bakshi, S. Shibata, C.-P. Chen, V.K. Singh, ibid., 109, 7925 (1987); (h) E.J. Corey, P.D.S. Jardine, J.C. Rohloff, ibid., 110, 3672 (1988); (i) E.J. Corey, S. Shibata, R.K. Bakshi, J. Org. Chem., 53, 2861 (1988); (j) E.J. Corey, C.-P. Chen, G.A. Reichard, Tetrahedron Lett., 30, 5547 (1989). (k) K. Yamada, M. Takeda, T. Iwakuma, J. Chem. Soc., Perkin Trans 1, 1983, 265; (1) R.O. Hutchins, A. Abel -Magid, Y.P. Sterchoy, A. Wambsgans, J. Org. Chem., 52, 702 (1987); (m) S. Itsuno, Y. Sakurai, K. Shimizu, K. Ito, J. Chem. Soc., Perkin Trans 1, 1990, 1859; (n) B.T. Cho, Y.S. Chun, ibid., 1990, 3200; (o) Y.N.C. Chan, J. Osborn, J. Am. Chem. Soc., 112, 9400 (1990); (p) B.T. Cho, Y.S. Chun, Tetrahedron: Asymm., 3, 337, 1583 (1992); (q) T. Kawate, M. Nakagawa, T. Kakikawa, T. Hino, ibid., 3, 227 (1992); (r) C.A. Willoughby, S.L. Buchwald, J. Am. Chem. Soc., 114, 7562 (1992); (s) M. Nakagawa, T. Kawate, T. Kakikawa, H. Yamada, T, Hino, Tetrahedron, 49, 1739 (1993); (t) C. Bolm, M. Felder, Synlett, 1994, 655; refs. 15 c, d, e. V.K. Singh, Synthesis, 1992, 605; L. Deloux, M. Srebnik, Chem. Rev., 93, 763 (1993)
75. (a) S. Itsuno, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Chem. Commun., 1983, 469; (b) idem, J. Org. Chem., 49, 555 (1984); (c) S. Itsuno, M. Nakano, K. Miyazaki, H. Masuda, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Perkin Trans 1, 1985, 2039; (d) S. Itsuno, M. Nakano, K. Ito, A. Hirao, M. Owa, M. Kanda, S. Nakahama, ibid., 1985, 2615; (e) S. Itsuno, Y. Sakurai, K. Ito, A. Hirao, S. Nakahama, Bull. Chem. Soc. Jpn., 60, 395 (1987); (f) E.J. Corey, R.K. Bakshi, S. Shibata, J. Am. Chem. Soc., 109, 5551 (1987); (g) E.J. Corey, R.K. Bakshi, S. Shibata, C.-P. Chen, V.K. Singh, ibid., 109, 7925 (1987); (h) E.J. Corey, P.D.S. Jardine, J.C. Rohloff, ibid., 110, 3672 (1988); (i) E.J. Corey, S. Shibata, R.K. Bakshi, J. Org. Chem., 53, 2861 (1988); (j) E.J. Corey, C.-P. Chen, G.A. Reichard, Tetrahedron Lett., 30, 5547 (1989). (k) K. Yamada, M. Takeda, T. Iwakuma, J. Chem. Soc., Perkin Trans 1, 1983, 265; (1) R.O. Hutchins, A. Abel -Magid, Y.P. Sterchoy, A. Wambsgans, J. Org. Chem., 52, 702 (1987); (m) S. Itsuno, Y. Sakurai, K. Shimizu, K. Ito, J. Chem. Soc., Perkin Trans 1, 1990, 1859; (n) B.T. Cho, Y.S. Chun, ibid., 1990, 3200; (o) Y.N.C. Chan, J. Osborn, J. Am. Chem. Soc., 112, 9400 (1990); (p) B.T. Cho, Y.S. Chun, Tetrahedron: Asymm., 3, 337, 1583 (1992); (q) T. Kawate, M. Nakagawa, T. Kakikawa, T. Hino, ibid., 3, 227 (1992); (r) C.A. Willoughby, S.L. Buchwald, J. Am. Chem. Soc., 114, 7562 (1992); (s) M. Nakagawa, T. Kawate, T. Kakikawa, H. Yamada, T, Hino, Tetrahedron, 49, 1739 (1993); (t) C. Bolm, M. Felder, Synlett, 1994, 655; refs. 15 c, d, e. V.K. Singh, Synthesis, 1992, 605; L. Deloux, M. Srebnik, Chem. Rev., 93, 763 (1993)
76. (a) S. Itsuno, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Chem. Commun., 1983, 469; (b) idem, J. Org. Chem., 49, 555 (1984); (c) S. Itsuno, M. Nakano, K. Miyazaki, H. Masuda, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Perkin Trans 1, 1985, 2039; (d) S. Itsuno, M. Nakano, K. Ito, A. Hirao, M. Owa, M. Kanda, S. Nakahama, ibid., 1985, 2615; (e) S. Itsuno, Y. Sakurai, K. Ito, A. Hirao, S. Nakahama, Bull. Chem. Soc. Jpn., 60, 395 (1987); (f) E.J. Corey, R.K. Bakshi, S. Shibata, J. Am. Chem. Soc., 109, 5551 (1987); (g) E.J. Corey, R.K. Bakshi, S. Shibata, C.-P. Chen, V.K. Singh, ibid., 109, 7925 (1987); (h) E.J. Corey, P.D.S. Jardine, J.C. Rohloff, ibid., 110, 3672 (1988); (i) E.J. Corey, S. Shibata, R.K. Bakshi, J. Org. Chem., 53, 2861 (1988); (j) E.J. Corey, C.-P. Chen, G.A. Reichard, Tetrahedron Lett., 30, 5547 (1989). (k) K. Yamada, M. Takeda, T. Iwakuma, J. Chem. Soc., Perkin Trans 1, 1983, 265; (1) R.O. Hutchins, A. Abel -Magid, Y.P. Sterchoy, A. Wambsgans, J. Org. Chem., 52, 702 (1987); (m) S. Itsuno, Y. Sakurai, K. Shimizu, K. Ito, J. Chem. Soc., Perkin Trans 1, 1990, 1859; (n) B.T. Cho, Y.S. Chun, ibid., 1990, 3200; (o) Y.N.C. Chan, J. Osborn, J. Am. Chem. Soc., 112, 9400 (1990); (p) B.T. Cho, Y.S. Chun, Tetrahedron: Asymm., 3, 337, 1583 (1992); (q) T. Kawate, M. Nakagawa, T. Kakikawa, T. Hino, ibid., 3, 227 (1992); (r) C.A. Willoughby, S.L. Buchwald, J. Am. Chem. Soc., 114, 7562 (1992); (s) M. Nakagawa, T. Kawate, T. Kakikawa, H. Yamada, T, Hino, Tetrahedron, 49, 1739 (1993); (t) C. Bolm, M. Felder, Synlett, 1994, 655; refs. 15 c, d, e. V.K. Singh, Synthesis, 1992, 605; L. Deloux, M. Srebnik, Chem. Rev., 93, 763 (1993)
77. (a) S. Itsuno, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Chem. Commun., 1983, 469; (b) idem, J. Org. Chem., 49, 555 (1984); (c) S. Itsuno, M. Nakano, K. Miyazaki, H. Masuda, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Perkin Trans 1, 1985, 2039; (d) S. Itsuno, M. Nakano, K. Ito, A. Hirao, M. Owa, M. Kanda, S. Nakahama, ibid., 1985, 2615; (e) S. Itsuno, Y. Sakurai, K. Ito, A. Hirao, S. Nakahama, Bull. Chem. Soc. Jpn., 60, 395 (1987); (f) E.J. Corey, R.K. Bakshi, S. Shibata, J. Am. Chem. Soc., 109, 5551 (1987); (g) E.J. Corey, R.K. Bakshi, S. Shibata, C.-P. Chen, V.K. Singh, ibid., 109, 7925 (1987); (h) E.J. Corey, P.D.S. Jardine, J.C. Rohloff, ibid., 110, 3672 (1988); (i) E.J. Corey, S. Shibata, R.K. Bakshi, J. Org. Chem., 53, 2861 (1988); (j) E.J. Corey, C.-P. Chen, G.A. Reichard, Tetrahedron Lett., 30, 5547 (1989). (k) K. Yamada, M. Takeda, T. Iwakuma, J. Chem. Soc., Perkin Trans 1, 1983, 265; (1) R.O. Hutchins, A. Abel -Magid, Y.P. Sterchoy, A. Wambsgans, J. Org. Chem., 52, 702 (1987); (m) S. Itsuno, Y. Sakurai, K. Shimizu, K. Ito, J. Chem. Soc., Perkin Trans 1, 1990, 1859; (n) B.T. Cho, Y.S. Chun, ibid., 1990, 3200; (o) Y.N.C. Chan, J. Osborn, J. Am. Chem. Soc., 112, 9400 (1990); (p) B.T. Cho, Y.S. Chun, Tetrahedron: Asymm., 3, 337, 1583 (1992); (q) T. Kawate, M. Nakagawa, T. Kakikawa, T. Hino, ibid., 3, 227 (1992); (r) C.A. Willoughby, S.L. Buchwald, J. Am. Chem. Soc., 114, 7562 (1992); (s) M. Nakagawa, T. Kawate, T. Kakikawa, H. Yamada, T, Hino, Tetrahedron, 49, 1739 (1993); (t) C. Bolm, M. Felder, Synlett, 1994, 655; refs. 15 c, d, e. V.K. Singh, Synthesis, 1992, 605; L. Deloux, M. Srebnik, Chem. Rev., 93, 763 (1993)
78. (a) S. Itsuno, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Chem. Commun., 1983, 469; (b) idem, J. Org. Chem., 49, 555 (1984); (c) S. Itsuno, M. Nakano, K. Miyazaki, H. Masuda, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Perkin Trans 1, 1985, 2039; (d) S. Itsuno, M. Nakano, K. Ito, A. Hirao, M. Owa, M. Kanda, S. Nakahama, ibid., 1985, 2615; (e) S. Itsuno, Y. Sakurai, K. Ito, A. Hirao, S. Nakahama, Bull. Chem. Soc. Jpn., 60, 395 (1987); (f) E.J. Corey, R.K. Bakshi, S. Shibata, J. Am. Chem. Soc., 109, 5551 (1987); (g) E.J. Corey, R.K. Bakshi, S. Shibata, C.-P. Chen, V.K. Singh, ibid., 109, 7925 (1987); (h) E.J. Corey, P.D.S. Jardine, J.C. Rohloff, ibid., 110, 3672 (1988); (i) E.J. Corey, S. Shibata, R.K. Bakshi, J. Org. Chem., 53, 2861 (1988); (j) E.J. Corey, C.-P. Chen, G.A. Reichard, Tetrahedron Lett., 30, 5547 (1989). (k) K. Yamada, M. Takeda, T. Iwakuma, J. Chem. Soc., Perkin Trans 1, 1983, 265; (1) R.O. Hutchins, A. Abel -Magid, Y.P. Sterchoy, A. Wambsgans, J. Org. Chem., 52, 702 (1987); (m) S. Itsuno, Y. Sakurai, K. Shimizu, K. Ito, J. Chem. Soc., Perkin Trans 1, 1990, 1859; (n) B.T. Cho, Y.S. Chun, ibid., 1990, 3200; (o) Y.N.C. Chan, J. Osborn, J. Am. Chem. Soc., 112, 9400 (1990); (p) B.T. Cho, Y.S. Chun, Tetrahedron: Asymm., 3, 337, 1583 (1992); (q) T. Kawate, M. Nakagawa, T. Kakikawa, T. Hino, ibid., 3, 227 (1992); (r) C.A. Willoughby, S.L. Buchwald, J. Am. Chem. Soc., 114, 7562 (1992); (s) M. Nakagawa, T. Kawate, T. Kakikawa, H. Yamada, T, Hino, Tetrahedron, 49, 1739 (1993); (t) C. Bolm, M. Felder, Synlett, 1994, 655; refs. 15 c, d, e. V.K. Singh, Synthesis, 1992, 605; L. Deloux, M. Srebnik, Chem. Rev., 93, 763 (1993)
79. (a) S. Itsuno, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Chem. Commun., 1983, 469; (b) idem, J. Org. Chem., 49, 555 (1984); (c) S. Itsuno, M. Nakano, K. Miyazaki, H. Masuda, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Perkin Trans 1, 1985, 2039; (d) S. Itsuno, M. Nakano, K. Ito, A. Hirao, M. Owa, M. Kanda, S. Nakahama, ibid., 1985, 2615; (e) S. Itsuno, Y. Sakurai, K. Ito, A. Hirao, S. Nakahama, Bull. Chem. Soc. Jpn., 60, 395 (1987); (f) E.J. Corey, R.K. Bakshi, S. Shibata, J. Am. Chem. Soc., 109, 5551 (1987); (g) E.J. Corey, R.K. Bakshi, S. Shibata, C.-P. Chen, V.K. Singh, ibid., 109, 7925 (1987); (h) E.J. Corey, P.D.S. Jardine, J.C. Rohloff, ibid., 110, 3672 (1988); (i) E.J. Corey, S. Shibata, R.K. Bakshi, J. Org. Chem., 53, 2861 (1988); (j) E.J. Corey, C.-P. Chen, G.A. Reichard, Tetrahedron Lett., 30, 5547 (1989). (k) K. Yamada, M. Takeda, T. Iwakuma, J. Chem. Soc., Perkin Trans 1, 1983, 265; (1) R.O. Hutchins, A. Abel -Magid, Y.P. Sterchoy, A. Wambsgans, J. Org. Chem., 52, 702 (1987); (m) S. Itsuno, Y. Sakurai, K. Shimizu, K. Ito, J. Chem. Soc., Perkin Trans 1, 1990, 1859; (n) B.T. Cho, Y.S. Chun, ibid., 1990, 3200; (o) Y.N.C. Chan, J. Osborn, J. Am. Chem. Soc., 112, 9400 (1990); (p) B.T. Cho, Y.S. Chun, Tetrahedron: Asymm., 3, 337, 1583 (1992); (q) T. Kawate, M. Nakagawa, T. Kakikawa, T. Hino, ibid., 3, 227 (1992); (r) C.A. Willoughby, S.L. Buchwald, J. Am. Chem. Soc., 114, 7562 (1992); (s) M. Nakagawa, T. Kawate, T. Kakikawa, H. Yamada, T, Hino, Tetrahedron, 49, 1739 (1993); (t) C. Bolm, M. Felder, Synlett, 1994, 655; refs. 15 c, d, e. V.K. Singh, Synthesis, 1992, 605; L. Deloux, M. Srebnik, Chem. Rev., 93, 763 (1993)
80. (a) S. Itsuno, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Chem. Commun., 1983, 469; (b) idem, J. Org. Chem., 49, 555 (1984); (c) S. Itsuno, M. Nakano, K. Miyazaki, H. Masuda, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Perkin Trans 1, 1985, 2039; (d) S. Itsuno, M. Nakano, K. Ito, A. Hirao, M. Owa, M. Kanda, S. Nakahama, ibid., 1985, 2615; (e) S. Itsuno, Y. Sakurai, K. Ito, A. Hirao, S. Nakahama, Bull. Chem. Soc. Jpn., 60, 395 (1987); (f) E.J. Corey, R.K. Bakshi, S. Shibata, J. Am. Chem. Soc., 109, 5551 (1987); (g) E.J. Corey, R.K. Bakshi, S. Shibata, C.-P. Chen, V.K. Singh, ibid., 109, 7925 (1987); (h) E.J. Corey, P.D.S. Jardine, J.C. Rohloff, ibid., 110, 3672 (1988); (i) E.J. Corey, S. Shibata, R.K. Bakshi, J. Org. Chem., 53, 2861 (1988); (j) E.J. Corey, C.-P. Chen, G.A. Reichard, Tetrahedron Lett., 30, 5547 (1989). (k) K. Yamada, M. Takeda, T. Iwakuma, J. Chem. Soc., Perkin Trans 1, 1983, 265; (1) R.O. Hutchins, A. Abel -Magid, Y.P. Sterchoy, A. Wambsgans, J. Org. Chem., 52, 702 (1987); (m) S. Itsuno, Y. Sakurai, K. Shimizu, K. Ito, J. Chem. Soc., Perkin Trans 1, 1990, 1859; (n) B.T. Cho, Y.S. Chun, ibid., 1990, 3200; (o) Y.N.C. Chan, J. Osborn, J. Am. Chem. Soc., 112, 9400 (1990); (p) B.T. Cho, Y.S. Chun, Tetrahedron: Asymm., 3, 337, 1583 (1992); (q) T. Kawate, M. Nakagawa, T. Kakikawa, T. Hino, ibid., 3, 227 (1992); (r) C.A. Willoughby, S.L. Buchwald, J. Am. Chem. Soc., 114, 7562 (1992); (s) M. Nakagawa, T. Kawate, T. Kakikawa, H. Yamada, T, Hino, Tetrahedron, 49, 1739 (1993); (t) C. Bolm, M. Felder, Synlett, 1994, 655; refs. 15 c, d, e. V.K. Singh, Synthesis, 1992, 605; L. Deloux, M. Srebnik, Chem. Rev., 93, 763 (1993)
81. (a) S. Itsuno, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Chem. Commun., 1983, 469; (b) idem, J. Org. Chem., 49, 555 (1984); (c) S. Itsuno, M. Nakano, K. Miyazaki, H. Masuda, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Perkin Trans 1, 1985, 2039; (d) S. Itsuno, M. Nakano, K. Ito, A. Hirao, M. Owa, M. Kanda, S. Nakahama, ibid., 1985, 2615; (e) S. Itsuno, Y. Sakurai, K. Ito, A. Hirao, S. Nakahama, Bull. Chem. Soc. Jpn., 60, 395 (1987); (f) E.J. Corey, R.K. Bakshi, S. Shibata, J. Am. Chem. Soc., 109, 5551 (1987); (g) E.J. Corey, R.K. Bakshi, S. Shibata, C.-P. Chen, V.K. Singh, ibid., 109, 7925 (1987); (h) E.J. Corey, P.D.S. Jardine, J.C. Rohloff, ibid., 110, 3672 (1988); (i) E.J. Corey, S. Shibata, R.K. Bakshi, J. Org. Chem., 53, 2861 (1988); (j) E.J. Corey, C.-P. Chen, G.A. Reichard, Tetrahedron Lett., 30, 5547 (1989). (k) K. Yamada, M. Takeda, T. Iwakuma, J. Chem. Soc., Perkin Trans 1, 1983, 265; (1) R.O. Hutchins, A. Abel -Magid, Y.P. Sterchoy, A. Wambsgans, J. Org. Chem., 52, 702 (1987); (m) S. Itsuno, Y. Sakurai, K. Shimizu, K. Ito, J. Chem. Soc., Perkin Trans 1, 1990, 1859; (n) B.T. Cho, Y.S. Chun, ibid., 1990, 3200; (o) Y.N.C. Chan, J. Osborn, J. Am. Chem. Soc., 112, 9400 (1990); (p) B.T. Cho, Y.S. Chun, Tetrahedron: Asymm., 3, 337, 1583 (1992); (q) T. Kawate, M. Nakagawa, T. Kakikawa, T. Hino, ibid., 3, 227 (1992); (r) C.A. Willoughby, S.L. Buchwald, J. Am. Chem. Soc., 114, 7562 (1992); (s) M. Nakagawa, T. Kawate, T. Kakikawa, H. Yamada, T, Hino, Tetrahedron, 49, 1739 (1993); (t) C. Bolm, M. Felder, Synlett, 1994, 655; refs. 15 c, d, e. V.K. Singh, Synthesis, 1992, 605; L. Deloux, M. Srebnik, Chem. Rev., 93, 763 (1993)
82. (a) S. Itsuno, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Chem. Commun., 1983, 469; (b) idem, J. Org. Chem., 49, 555 (1984); (c) S. Itsuno, M. Nakano, K. Miyazaki, H. Masuda, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Perkin Trans 1, 1985, 2039; (d) S. Itsuno, M. Nakano, K. Ito, A. Hirao, M. Owa, M. Kanda, S. Nakahama, ibid., 1985, 2615; (e) S. Itsuno, Y. Sakurai, K. Ito, A. Hirao, S. Nakahama, Bull. Chem. Soc. Jpn., 60, 395 (1987); (f) E.J. Corey, R.K. Bakshi, S. Shibata, J. Am. Chem. Soc., 109, 5551 (1987); (g) E.J. Corey, R.K. Bakshi, S. Shibata, C.-P. Chen, V.K. Singh, ibid., 109, 7925 (1987); (h) E.J. Corey, P.D.S. Jardine, J.C. Rohloff, ibid., 110, 3672 (1988); (i) E.J. Corey, S. Shibata, R.K. Bakshi, J. Org. Chem., 53, 2861 (1988); (j) E.J. Corey, C.-P. Chen, G.A. Reichard, Tetrahedron Lett., 30, 5547 (1989). (k) K. Yamada, M. Takeda, T. Iwakuma, J. Chem. Soc., Perkin Trans 1, 1983, 265; (1) R.O. Hutchins, A. Abel -Magid, Y.P. Sterchoy, A. Wambsgans, J. Org. Chem., 52, 702 (1987); (m) S. Itsuno, Y. Sakurai, K. Shimizu, K. Ito, J. Chem. Soc., Perkin Trans 1, 1990, 1859; (n) B.T. Cho, Y.S. Chun, ibid., 1990, 3200; (o) Y.N.C. Chan, J. Osborn, J. Am. Chem. Soc., 112, 9400 (1990); (p) B.T. Cho, Y.S. Chun, Tetrahedron: Asymm., 3, 337, 1583 (1992); (q) T. Kawate, M. Nakagawa, T. Kakikawa, T. Hino, ibid., 3, 227 (1992); (r) C.A. Willoughby, S.L. Buchwald, J. Am. Chem. Soc., 114, 7562 (1992); (s) M. Nakagawa, T. Kawate, T. Kakikawa, H. Yamada, T, Hino, Tetrahedron, 49, 1739 (1993); (t) C. Bolm, M. Felder, Synlett, 1994, 655; refs. 15 c, d, e. V.K. Singh, Synthesis, 1992, 605; L. Deloux, M. Srebnik, Chem. Rev., 93, 763 (1993)
83. (a) S. Itsuno, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Chem. Commun., 1983, 469; (b) idem, J. Org. Chem., 49, 555 (1984); (c) S. Itsuno, M. Nakano, K. Miyazaki, H. Masuda, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Perkin Trans 1, 1985, 2039; (d) S. Itsuno, M. Nakano, K. Ito, A. Hirao, M. Owa, M. Kanda, S. Nakahama, ibid., 1985, 2615; (e) S. Itsuno, Y. Sakurai, K. Ito, A. Hirao, S. Nakahama, Bull. Chem. Soc. Jpn., 60, 395 (1987); (f) E.J. Corey, R.K. Bakshi, S. Shibata, J. Am. Chem. Soc., 109, 5551 (1987); (g) E.J. Corey, R.K. Bakshi, S. Shibata, C.-P. Chen, V.K. Singh, ibid., 109, 7925 (1987); (h) E.J. Corey, P.D.S. Jardine, J.C. Rohloff, ibid., 110, 3672 (1988); (i) E.J. Corey, S. Shibata, R.K. Bakshi, J. Org. Chem., 53, 2861 (1988); (j) E.J. Corey, C.-P. Chen, G.A. Reichard, Tetrahedron Lett., 30, 5547 (1989). (k) K. Yamada, M. Takeda, T. Iwakuma, J. Chem. Soc., Perkin Trans 1, 1983, 265; (1) R.O. Hutchins, A. Abel -Magid, Y.P. Sterchoy, A. Wambsgans, J. Org. Chem., 52, 702 (1987); (m) S. Itsuno, Y. Sakurai, K. Shimizu, K. Ito, J. Chem. Soc., Perkin Trans 1, 1990, 1859; (n) B.T. Cho, Y.S. Chun, ibid., 1990, 3200; (o) Y.N.C. Chan, J. Osborn, J. Am. Chem. Soc., 112, 9400 (1990); (p) B.T. Cho, Y.S. Chun, Tetrahedron: Asymm., 3, 337, 1583 (1992); (q) T. Kawate, M. Nakagawa, T. Kakikawa, T. Hino, ibid., 3, 227 (1992); (r) C.A. Willoughby, S.L. Buchwald, J. Am. Chem. Soc., 114, 7562 (1992); (s) M. Nakagawa, T. Kawate, T. Kakikawa, H. Yamada, T, Hino, Tetrahedron, 49, 1739 (1993); (t) C. Bolm, M. Felder, Synlett, 1994, 655; refs. 15 c, d, e. V.K. Singh, Synthesis, 1992, 605; L. Deloux, M. Srebnik, Chem. Rev., 93, 763 (1993)
84. (a) S. Itsuno, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Chem. Commun., 1983, 469; (b) idem, J. Org. Chem., 49, 555 (1984); (c) S. Itsuno, M. Nakano, K. Miyazaki, H. Masuda, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Perkin Trans 1, 1985, 2039; (d) S. Itsuno, M. Nakano, K. Ito, A. Hirao, M. Owa, M. Kanda, S. Nakahama, ibid., 1985, 2615; (e) S. Itsuno, Y. Sakurai, K. Ito, A. Hirao, S. Nakahama, Bull. Chem. Soc. Jpn., 60, 395 (1987); (f) E.J. Corey, R.K. Bakshi, S. Shibata, J. Am. Chem. Soc., 109, 5551 (1987); (g) E.J. Corey, R.K. Bakshi, S. Shibata, C.-P. Chen, V.K. Singh, ibid., 109, 7925 (1987); (h) E.J. Corey, P.D.S. Jardine, J.C. Rohloff, ibid., 110, 3672 (1988); (i) E.J. Corey, S. Shibata, R.K. Bakshi, J. Org. Chem., 53, 2861 (1988); (j) E.J. Corey, C.-P. Chen, G.A. Reichard, Tetrahedron Lett., 30, 5547 (1989). (k) K. Yamada, M. Takeda, T. Iwakuma, J. Chem. Soc., Perkin Trans 1, 1983, 265; (1) R.O. Hutchins, A. Abel -Magid, Y.P. Sterchoy, A. Wambsgans, J. Org. Chem., 52, 702 (1987); (m) S. Itsuno, Y. Sakurai, K. Shimizu, K. Ito, J. Chem. Soc., Perkin Trans 1, 1990, 1859; (n) B.T. Cho, Y.S. Chun, ibid., 1990, 3200; (o) Y.N.C. Chan, J. Osborn, J. Am. Chem. Soc., 112, 9400 (1990); (p) B.T. Cho, Y.S. Chun, Tetrahedron: Asymm., 3, 337, 1583 (1992); (q) T. Kawate, M. Nakagawa, T. Kakikawa, T. Hino, ibid., 3, 227 (1992); (r) C.A. Willoughby, S.L. Buchwald, J. Am. Chem. Soc., 114, 7562 (1992); (s) M. Nakagawa, T. Kawate, T. Kakikawa, H. Yamada, T, Hino, Tetrahedron, 49, 1739 (1993); (t) C. Bolm, M. Felder, Synlett, 1994, 655; refs. 15 c, d, e. V.K. Singh, Synthesis, 1992, 605; L. Deloux, M. Srebnik, Chem. Rev., 93, 763 (1993)
85. (a) S. Itsuno, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Chem. Commun., 1983, 469; (b) idem, J. Org. Chem., 49, 555 (1984); (c) S. Itsuno, M. Nakano, K. Miyazaki, H. Masuda, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Perkin Trans 1, 1985, 2039; (d) S. Itsuno, M. Nakano, K. Ito, A. Hirao, M. Owa, M. Kanda, S. Nakahama, ibid., 1985, 2615; (e) S. Itsuno, Y. Sakurai, K. Ito, A. Hirao, S. Nakahama, Bull. Chem. Soc. Jpn., 60, 395 (1987); (f) E.J. Corey, R.K. Bakshi, S. Shibata, J. Am. Chem. Soc., 109, 5551 (1987); (g) E.J. Corey, R.K. Bakshi, S. Shibata, C.-P. Chen, V.K. Singh, ibid., 109, 7925 (1987); (h) E.J. Corey, P.D.S. Jardine, J.C. Rohloff, ibid., 110, 3672 (1988); (i) E.J. Corey, S. Shibata, R.K. Bakshi, J. Org. Chem., 53, 2861 (1988); (j) E.J. Corey, C.-P. Chen, G.A. Reichard, Tetrahedron Lett., 30, 5547 (1989). (k) K. Yamada, M. Takeda, T. Iwakuma, J. Chem. Soc., Perkin Trans 1, 1983, 265; (1) R.O. Hutchins, A. Abel -Magid, Y.P. Sterchoy, A. Wambsgans, J. Org. Chem., 52, 702 (1987); (m) S. Itsuno, Y. Sakurai, K. Shimizu, K. Ito, J. Chem. Soc., Perkin Trans 1, 1990, 1859; (n) B.T. Cho, Y.S. Chun, ibid., 1990, 3200; (o) Y.N.C. Chan, J. Osborn, J. Am. Chem. Soc., 112, 9400 (1990); (p) B.T. Cho, Y.S. Chun, Tetrahedron: Asymm., 3, 337, 1583 (1992); (q) T. Kawate, M. Nakagawa, T. Kakikawa, T. Hino, ibid., 3, 227 (1992); (r) C.A. Willoughby, S.L. Buchwald, J. Am. Chem. Soc., 114, 7562 (1992); (s) M. Nakagawa, T. Kawate, T. Kakikawa, H. Yamada, T, Hino, Tetrahedron, 49, 1739 (1993); (t) C. Bolm, M. Felder, Synlett, 1994, 655; refs. 15 c, d, e. V.K. Singh, Synthesis, 1992, 605; L. Deloux, M. Srebnik, Chem. Rev., 93, 763 (1993)
86. (a) S. Itsuno, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Chem. Commun., 1983, 469; (b) idem, J. Org. Chem., 49, 555 (1984); (c) S. Itsuno, M. Nakano, K. Miyazaki, H. Masuda, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Perkin Trans 1, 1985, 2039; (d) S. Itsuno, M. Nakano, K. Ito, A. Hirao, M. Owa, M. Kanda, S. Nakahama, ibid., 1985, 2615; (e) S. Itsuno, Y. Sakurai, K. Ito, A. Hirao, S. Nakahama, Bull. Chem. Soc. Jpn., 60, 395 (1987); (f) E.J. Corey, R.K. Bakshi, S. Shibata, J. Am. Chem. Soc., 109, 5551 (1987); (g) E.J. Corey, R.K. Bakshi, S. Shibata, C.-P. Chen, V.K. Singh, ibid., 109, 7925 (1987); (h) E.J. Corey, P.D.S. Jardine, J.C. Rohloff, ibid., 110, 3672 (1988); (i) E.J. Corey, S. Shibata, R.K. Bakshi, J. Org. Chem., 53, 2861 (1988); (j) E.J. Corey, C.-P. Chen, G.A. Reichard, Tetrahedron Lett., 30, 5547 (1989). (k) K. Yamada, M. Takeda, T. Iwakuma, J. Chem. Soc., Perkin Trans 1, 1983, 265; (1) R.O. Hutchins, A. Abel -Magid, Y.P. Sterchoy, A. Wambsgans, J. Org. Chem., 52, 702 (1987); (m) S. Itsuno, Y. Sakurai, K. Shimizu, K. Ito, J. Chem. Soc., Perkin Trans 1, 1990, 1859; (n) B.T. Cho, Y.S. Chun, ibid., 1990, 3200; (o) Y.N.C. Chan, J. Osborn, J. Am. Chem. Soc., 112, 9400 (1990); (p) B.T. Cho, Y.S. Chun, Tetrahedron: Asymm., 3, 337, 1583 (1992); (q) T. Kawate, M. Nakagawa, T. Kakikawa, T. Hino, ibid., 3, 227 (1992); (r) C.A. Willoughby, S.L. Buchwald, J. Am. Chem. Soc., 114, 7562 (1992); (s) M. Nakagawa, T. Kawate, T. Kakikawa, H. Yamada, T, Hino, Tetrahedron, 49, 1739 (1993); (t) C. Bolm, M. Felder, Synlett, 1994, 655; refs. 15 c, d, e. V.K. Singh, Synthesis, 1992, 605; L. Deloux, M. Srebnik, Chem. Rev., 93, 763 (1993)
87. (a) S. Itsuno, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Chem. Commun., 1983, 469; (b) idem, J. Org. Chem., 49, 555 (1984); (c) S. Itsuno, M. Nakano, K. Miyazaki, H. Masuda, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Perkin Trans 1, 1985, 2039; (d) S. Itsuno, M. Nakano, K. Ito, A. Hirao, M. Owa, M. Kanda, S. Nakahama, ibid., 1985, 2615; (e) S. Itsuno, Y. Sakurai, K. Ito, A. Hirao, S. Nakahama, Bull. Chem. Soc. Jpn., 60, 395 (1987); (f) E.J. Corey, R.K. Bakshi, S. Shibata, J. Am. Chem. Soc., 109, 5551 (1987); (g) E.J. Corey, R.K. Bakshi, S. Shibata, C.-P. Chen, V.K. Singh, ibid., 109, 7925 (1987); (h) E.J. Corey, P.D.S. Jardine, J.C. Rohloff, ibid., 110, 3672 (1988); (i) E.J. Corey, S. Shibata, R.K. Bakshi, J. Org. Chem., 53, 2861 (1988); (j) E.J. Corey, C.-P. Chen, G.A. Reichard, Tetrahedron Lett., 30, 5547 (1989). (k) K. Yamada, M. Takeda, T. Iwakuma, J. Chem. Soc., Perkin Trans 1, 1983, 265; (1) R.O. Hutchins, A. Abel -Magid, Y.P. Sterchoy, A. Wambsgans, J. Org. Chem., 52, 702 (1987); (m) S. Itsuno, Y. Sakurai, K. Shimizu, K. Ito, J. Chem. Soc., Perkin Trans 1, 1990, 1859; (n) B.T. Cho, Y.S. Chun, ibid., 1990, 3200; (o) Y.N.C. Chan, J. Osborn, J. Am. Chem. Soc., 112, 9400 (1990); (p) B.T. Cho, Y.S. Chun, Tetrahedron: Asymm., 3, 337, 1583 (1992); (q) T. Kawate, M. Nakagawa, T. Kakikawa, T. Hino, ibid., 3, 227 (1992); (r) C.A. Willoughby, S.L. Buchwald, J. Am. Chem. Soc., 114, 7562 (1992); (s) M. Nakagawa, T. Kawate, T. Kakikawa, H. Yamada, T, Hino, Tetrahedron, 49, 1739 (1993); (t) C. Bolm, M. Felder, Synlett, 1994, 655; refs. 15 c, d, e. V.K. Singh, Synthesis, 1992, 605; L. Deloux, M. Srebnik, Chem. Rev., 93, 763 (1993)
88. (a) S. Itsuno, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Chem. Commun., 1983, 469; (b) idem, J. Org. Chem., 49, 555 (1984); (c) S. Itsuno, M. Nakano, K. Miyazaki, H. Masuda, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Perkin Trans 1, 1985, 2039; (d) S. Itsuno, M. Nakano, K. Ito, A. Hirao, M. Owa, M. Kanda, S. Nakahama, ibid., 1985, 2615; (e) S. Itsuno, Y. Sakurai, K. Ito, A. Hirao, S. Nakahama, Bull. Chem. Soc. Jpn., 60, 395 (1987); (f) E.J. Corey, R.K. Bakshi, S. Shibata, J. Am. Chem. Soc., 109, 5551 (1987); (g) E.J. Corey, R.K. Bakshi, S. Shibata, C.-P. Chen, V.K. Singh, ibid., 109, 7925 (1987); (h) E.J. Corey, P.D.S. Jardine, J.C. Rohloff, ibid., 110, 3672 (1988); (i) E.J. Corey, S. Shibata, R.K. Bakshi, J. Org. Chem., 53, 2861 (1988); (j) E.J. Corey, C.-P. Chen, G.A. Reichard, Tetrahedron Lett., 30, 5547 (1989). (k) K. Yamada, M. Takeda, T. Iwakuma, J. Chem. Soc., Perkin Trans 1, 1983, 265; (1) R.O. Hutchins, A. Abel -Magid, Y.P. Sterchoy, A. Wambsgans, J. Org. Chem., 52, 702 (1987); (m) S. Itsuno, Y. Sakurai, K. Shimizu, K. Ito, J. Chem. Soc., Perkin Trans 1, 1990, 1859; (n) B.T. Cho, Y.S. Chun, ibid., 1990, 3200; (o) Y.N.C. Chan, J. Osborn, J. Am. Chem. Soc., 112, 9400 (1990); (p) B.T. Cho, Y.S. Chun, Tetrahedron: Asymm., 3, 337, 1583 (1992); (q) T. Kawate, M. Nakagawa, T. Kakikawa, T. Hino, ibid., 3, 227 (1992); (r) C.A. Willoughby, S.L. Buchwald, J. Am. Chem. Soc., 114, 7562 (1992); (s) M. Nakagawa, T. Kawate, T. Kakikawa, H. Yamada, T, Hino, Tetrahedron, 49, 1739 (1993); (t) C. Bolm, M. Felder, Synlett, 1994, 655; refs. 15 c, d, e. V.K. Singh, Synthesis, 1992, 605; L. Deloux, M. Srebnik, Chem. Rev., 93, 763 (1993)
89. (a) S. Itsuno, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Chem. Commun., 1983, 469; (b) idem, J. Org. Chem., 49, 555 (1984); (c) S. Itsuno, M. Nakano, K. Miyazaki, H. Masuda, K. Ito, A. Hirao, S. Nakahama, J. Chem. Soc., Perkin Trans 1, 1985, 2039; (d) S. Itsuno, M. Nakano, K. Ito, A. Hirao, M. Owa, M. Kanda, S. Nakahama, ibid., 1985, 2615; (e) S. Itsuno, Y. Sakurai, K. Ito, A. Hirao, S. Nakahama, Bull. Chem. Soc. Jpn., 60, 395 (1987); (f) E.J. Corey, R.K. Bakshi, S. Shibata, J. Am. Chem. Soc., 109, 5551 (1987); (g) E.J. Corey, R.K. Bakshi, S. Shibata, C.-P. Chen, V.K. Singh, ibid., 109, 7925 (1987); (h) E.J. Corey, P.D.S. Jardine, J.C. Rohloff, ibid., 110, 3672 (1988); (i) E.J. Corey, S. Shibata, R.K. Bakshi, J. Org. Chem., 53, 2861 (1988); (j) E.J. Corey, C.-P. Chen, G.A. Reichard, Tetrahedron Lett., 30, 5547 (1989). (k) K. Yamada, M. Takeda, T. Iwakuma, J. Chem. Soc., Perkin Trans 1, 1983, 265; (1) R.O. Hutchins, A. Abel -Magid, Y.P. Sterchoy, A. Wambsgans, J. Org. Chem., 52, 702 (1987); (m) S. Itsuno, Y. Sakurai, K. Shimizu, K. Ito, J. Chem. Soc., Perkin Trans 1, 1990, 1859; (n) B.T. Cho, Y.S. Chun, ibid., 1990, 3200; (o) Y.N.C. Chan, J. Osborn, J. Am. Chem. Soc., 112, 9400 (1990); (p) B.T. Cho, Y.S. Chun, Tetrahedron: Asymm., 3, 337, 1583 (1992); (q) T. Kawate, M. Nakagawa, T. Kakikawa, T. Hino, ibid., 3, 227 (1992); (r) C.A. Willoughby, S.L. Buchwald, J. Am. Chem. Soc., 114, 7562 (1992); (s) M. Nakagawa, T. Kawate, T. Kakikawa, H. Yamada, T, Hino, Tetrahedron, 49, 1739 (1993); (t) C. Bolm, M. Felder, Synlett, 1994, 655; refs. 15 c, d, e. V.K. Singh, Synthesis, 1992, 605; L. Deloux, M. Srebnik, Chem. Rev., 93, 763 (1993)
90. M. Shimizu, M. Kamei, T. Fujisawa, Tetrahedron Lett., 36, 8607 (1995)
91. (a) M. Shimizu, K. Tsukamoto, T. Fujisawa, Tetrahedron Lett., 38, 5193 (1997);
92. (b) M. Shimizu, K. Tsukamoto, T. Matsutani, T. Fujisawa, Tetrahedron, in press.
93. R.O. Hutchins in "Comprehensive Organic Synthesis", ed. by B.M. Trost, I. Fleming, Pergamon Press, Oxford, Vol.8, pp.25-78 (1991), and the references cited therein.
94. K. Harada, S. Shiono, Bull. Chem. Soc. Jpn., 57, 1040 (1984)
95. K.R.K. Prasad, N.N. Joshi, J. Org. Chem., 61, 3888 (1996)
96. M. Ostendorf, R. Romagnoli, I.C. Pereiro, E.C. Roos, M.J. Moolendat, W.N. Speckarnp, H. Hiemstra, Tetrahedron: Asymm., 8, 1773 (1997)
97. 1998, 2D618. Cf. M. Shimizu, K. Matsukawa, T. Fujisawa, Bull. Chem. Soc. Jpn., 66, 2128 (1993)
98. P.J. Clereg, Chem. Rev., 97, 1755 (1997). Cf. T. Fujisawa, M. Nagai, Y. Koike, M. Shimizu, J. Org. Chem., 59, 5865 (1994)
99. P.J. Clereg, Chem. Rev., 97, 1755 (1997). Cf. T. Fujisawa, M. Nagai, Y. Koike, M. Shimizu, J. Org. Chem., 59, 5865 (1994)
100. E.J. Corey, X.M. Cheng, K.A. Cimprich, S. Sarshar, Tetrahedoron Lett., 32, 6835 (1991)
101. T. Fujisawa, Y. Onogawa, M. Shimizu, Tetrahedron Lett., in press. Cf. T. Fujisawa, Y. Onogawa, A. Sato, T. Mitsuya, M. Shimizu, Tetrahedron, 54, 4267 (1998)
102. T. Fujisawa, Y. Onogawa, M. Shimizu, Tetrahedron Lett., in press. Cf. T. Fujisawa, Y. Onogawa, A. Sato, T. Mitsuya, M. Shimizu, Tetrahedron, 54, 4267 (1998)
103. P.V. Ramachandran, A.V. Teodorovic, H.C. Brown, Tetrahedoron, 49, 1725 (1993)