Unusual cyclopropanol formation from a β-silyl aldehyde

Chemical Communications

Volumn , Issue 10, 1999, Pages 923-924

  Fleming, Ian ^a   Mandal, Ajay K ^a  

^a Department of Chemistry ^*  (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

ALDEHYDE; CYCLOPROPANE DERIVATIVE; DIMETHYL SULFOXIDE; SODIUM DERIVATIVE;

ARTICLE; CHEMICAL STRUCTURE; SYNTHESIS;

EID: 0033591348     PISSN: 13597345     EISSN: None     Source Type: Journal    
DOI: 10.1039/a901920k     Document Type: Article

References (83)

1. S. Murata and I. Matsuda, Synthesis, 1978, 221; M. Isobe, M. Kitamura and T. Goto, Tetrahedron Lett., 1980, 4727; A. G. Brook and J. J. Chrusciel, Organometallics, 1984, 3, 1317; K. Yamamoto, T. Kimura and Y. Tomo, Tetrahedron Lett., 1985, 26, 4505; A. D. Kaye, G. Pattenden and S. M. Roberts, Tetrahedron Lett., 1986, 27, 2033; P. F. Hudrlik, P. E. Holmes and A. M. Hudrlik, Tetrahedron Lett., 1988, 29, 6395; E. Schaumann, A. Kirschning and F. Narjes, J. Org. Chem., 1991, 56, 717.
2. S. Murata and I. Matsuda, Synthesis, 1978, 221; M. Isobe, M. Kitamura and T. Goto, Tetrahedron Lett., 1980, 4727; A. G. Brook and J. J. Chrusciel, Organometallics, 1984, 3, 1317; K. Yamamoto, T. Kimura and Y. Tomo, Tetrahedron Lett., 1985, 26, 4505; A. D. Kaye, G. Pattenden and S. M. Roberts, Tetrahedron Lett., 1986, 27, 2033; P. F. Hudrlik, P. E. Holmes and A. M. Hudrlik, Tetrahedron Lett., 1988, 29, 6395; E. Schaumann, A. Kirschning and F. Narjes, J. Org. Chem., 1991, 56, 717.
3. S. Murata and I. Matsuda, Synthesis, 1978, 221; M. Isobe, M. Kitamura and T. Goto, Tetrahedron Lett., 1980, 4727; A. G. Brook and J. J. Chrusciel, Organometallics, 1984, 3, 1317; K. Yamamoto, T. Kimura and Y. Tomo, Tetrahedron Lett., 1985, 26, 4505; A. D. Kaye, G. Pattenden and S. M. Roberts, Tetrahedron Lett., 1986, 27, 2033; P. F. Hudrlik, P. E. Holmes and A. M. Hudrlik, Tetrahedron Lett., 1988, 29, 6395; E. Schaumann, A. Kirschning and F. Narjes, J. Org. Chem., 1991, 56, 717.
4. S. Murata and I. Matsuda, Synthesis, 1978, 221; M. Isobe, M. Kitamura and T. Goto, Tetrahedron Lett., 1980, 4727; A. G. Brook and J. J. Chrusciel, Organometallics, 1984, 3, 1317; K. Yamamoto, T. Kimura and Y. Tomo, Tetrahedron Lett., 1985, 26, 4505; A. D. Kaye, G. Pattenden and S. M. Roberts, Tetrahedron Lett., 1986, 27, 2033; P. F. Hudrlik, P. E. Holmes and A. M. Hudrlik, Tetrahedron Lett., 1988, 29, 6395; E. Schaumann, A. Kirschning and F. Narjes, J. Org. Chem., 1991, 56, 717.
5. S. Murata and I. Matsuda, Synthesis, 1978, 221; M. Isobe, M. Kitamura and T. Goto, Tetrahedron Lett., 1980, 4727; A. G. Brook and J. J. Chrusciel, Organometallics, 1984, 3, 1317; K. Yamamoto, T. Kimura and Y. Tomo, Tetrahedron Lett., 1985, 26, 4505; A. D. Kaye, G. Pattenden and S. M. Roberts, Tetrahedron Lett., 1986, 27, 2033; P. F. Hudrlik, P. E. Holmes and A. M. Hudrlik, Tetrahedron Lett., 1988, 29, 6395; E. Schaumann, A. Kirschning and F. Narjes, J. Org. Chem., 1991, 56, 717.
6. S. Murata and I. Matsuda, Synthesis, 1978, 221; M. Isobe, M. Kitamura and T. Goto, Tetrahedron Lett., 1980, 4727; A. G. Brook and J. J. Chrusciel, Organometallics, 1984, 3, 1317; K. Yamamoto, T. Kimura and Y. Tomo, Tetrahedron Lett., 1985, 26, 4505; A. D. Kaye, G. Pattenden and S. M. Roberts, Tetrahedron Lett., 1986, 27, 2033; P. F. Hudrlik, P. E. Holmes and A. M. Hudrlik, Tetrahedron Lett., 1988, 29, 6395; E. Schaumann, A. Kirschning and F. Narjes, J. Org. Chem., 1991, 56, 717.
7. S. Murata and I. Matsuda, Synthesis, 1978, 221; M. Isobe, M. Kitamura and T. Goto, Tetrahedron Lett., 1980, 4727; A. G. Brook and J. J. Chrusciel, Organometallics, 1984, 3, 1317; K. Yamamoto, T. Kimura and Y. Tomo, Tetrahedron Lett., 1985, 26, 4505; A. D. Kaye, G. Pattenden and S. M. Roberts, Tetrahedron Lett., 1986, 27, 2033; P. F. Hudrlik, P. E. Holmes and A. M. Hudrlik, Tetrahedron Lett., 1988, 29, 6395; E. Schaumann, A. Kirschning and F. Narjes, J. Org. Chem., 1991, 56, 717.
8. I. Fleming and C. D. Floyd, J. Chem. Soc., Perkin Trans. 1, 1981, 969; T. Takeda, K. Ando and T. Fujiwara, Chem. Lett., 1983, 1285; E. Block, J.-A. Laffitte and V. Eswarakrishnan, J. Org. Chem., 1986, 51, 3428; P. L. Coe, A. S. Jones, A. Kumar and R. T. Walker, Tetrahedron Lett., 1988, 29, 835; E. Schaumann and C. Friese, Tetrahedron Lett., 1989, 30, 7033; T. Michel, A. Kirschning, C. Beier, N. Bräuer, E. Schaumann and G. Adiwidjaja, Liebigs Ann. Chem., 1996, 1811; H. Shinokubo, K. Miura, K. Oshima and K. Utimoto, Tetrahedron, 1996, 52, 503.
9. I. Fleming and C. D. Floyd, J. Chem. Soc., Perkin Trans. 1, 1981, 969; T. Takeda, K. Ando and T. Fujiwara, Chem. Lett., 1983, 1285; E. Block, J.-A. Laffitte and V. Eswarakrishnan, J. Org. Chem., 1986, 51, 3428; P. L. Coe, A. S. Jones, A. Kumar and R. T. Walker, Tetrahedron Lett., 1988, 29, 835; E. Schaumann and C. Friese, Tetrahedron Lett., 1989, 30, 7033; T. Michel, A. Kirschning, C. Beier, N. Bräuer, E. Schaumann and G. Adiwidjaja, Liebigs Ann. Chem., 1996, 1811; H. Shinokubo, K. Miura, K. Oshima and K. Utimoto, Tetrahedron, 1996, 52, 503.
10. I. Fleming and C. D. Floyd, J. Chem. Soc., Perkin Trans. 1, 1981, 969; T. Takeda, K. Ando and T. Fujiwara, Chem. Lett., 1983, 1285; E. Block, J.-A. Laffitte and V. Eswarakrishnan, J. Org. Chem., 1986, 51, 3428; P. L. Coe, A. S. Jones, A. Kumar and R. T. Walker, Tetrahedron Lett., 1988, 29, 835; E. Schaumann and C. Friese, Tetrahedron Lett., 1989, 30, 7033; T. Michel, A. Kirschning, C. Beier, N. Bräuer, E. Schaumann and G. Adiwidjaja, Liebigs Ann. Chem., 1996, 1811; H. Shinokubo, K. Miura, K. Oshima and K. Utimoto, Tetrahedron, 1996, 52, 503.
11. I. Fleming and C. D. Floyd, J. Chem. Soc., Perkin Trans. 1, 1981, 969; T. Takeda, K. Ando and T. Fujiwara, Chem. Lett., 1983, 1285; E. Block, J.-A. Laffitte and V. Eswarakrishnan, J. Org. Chem., 1986, 51, 3428; P. L. Coe, A. S. Jones, A. Kumar and R. T. Walker, Tetrahedron Lett., 1988, 29, 835; E. Schaumann and C. Friese, Tetrahedron Lett., 1989, 30, 7033; T. Michel, A. Kirschning, C. Beier, N. Bräuer, E. Schaumann and G. Adiwidjaja, Liebigs Ann. Chem., 1996, 1811; H. Shinokubo, K. Miura, K. Oshima and K. Utimoto, Tetrahedron, 1996, 52, 503.
12. I. Fleming and C. D. Floyd, J. Chem. Soc., Perkin Trans. 1, 1981, 969; T. Takeda, K. Ando and T. Fujiwara, Chem. Lett., 1983, 1285; E. Block, J.-A. Laffitte and V. Eswarakrishnan, J. Org. Chem., 1986, 51, 3428; P. L. Coe, A. S. Jones, A. Kumar and R. T. Walker, Tetrahedron Lett., 1988, 29, 835; E. Schaumann and C. Friese, Tetrahedron Lett., 1989, 30, 7033; T. Michel, A. Kirschning, C. Beier, N. Bräuer, E. Schaumann and G. Adiwidjaja, Liebigs Ann. Chem., 1996, 1811; H. Shinokubo, K. Miura, K. Oshima and K. Utimoto, Tetrahedron, 1996, 52, 503.
13. I. Fleming and C. D. Floyd, J. Chem. Soc., Perkin Trans. 1, 1981, 969; T. Takeda, K. Ando and T. Fujiwara, Chem. Lett., 1983, 1285; E. Block, J.-A. Laffitte and V. Eswarakrishnan, J. Org. Chem., 1986, 51, 3428; P. L. Coe, A. S. Jones, A. Kumar and R. T. Walker, Tetrahedron Lett., 1988, 29, 835; E. Schaumann and C. Friese, Tetrahedron Lett., 1989, 30, 7033; T. Michel, A. Kirschning, C. Beier, N. Bräuer, E. Schaumann and G. Adiwidjaja, Liebigs Ann. Chem., 1996, 1811; H. Shinokubo, K. Miura, K. Oshima and K. Utimoto, Tetrahedron, 1996, 52, 503.
14. I. Fleming and C. D. Floyd, J. Chem. Soc., Perkin Trans. 1, 1981, 969; T. Takeda, K. Ando and T. Fujiwara, Chem. Lett., 1983, 1285; E. Block, J.-A. Laffitte and V. Eswarakrishnan, J. Org. Chem., 1986, 51, 3428; P. L. Coe, A. S. Jones, A. Kumar and R. T. Walker, Tetrahedron Lett., 1988, 29, 835; E. Schaumann and C. Friese, Tetrahedron Lett., 1989, 30, 7033; T. Michel, A. Kirschning, C. Beier, N. Bräuer, E. Schaumann and G. Adiwidjaja, Liebigs Ann. Chem., 1996, 1811; H. Shinokubo, K. Miura, K. Oshima and K. Utimoto, Tetrahedron, 1996, 52, 503.
15. M. Ochiai, K. Sumi and E. Fujita, Chem. Pharm. Bull, Jpn., 1984, 32, 3686; M. Tsukamoto, H. Iio and T. Tokoroyama, Tetrahedron Lett., 1987, 28, 4561; H. Iio, A. Fujii, M. Ishii and T. Tokoroyama, J. Chem. Soc., Chem. Commun., 1991, 1390; M. Franciotti, A. Mann and M. Taddei, Tetrahedron Lett., 1991, 32, 6783; A. Fujii, Y. Usuki, H. Iio and T. Tokoroyama, Synlett, 1994, 725.
16. M. Ochiai, K. Sumi and E. Fujita, Chem. Pharm. Bull, Jpn., 1984, 32, 3686; M. Tsukamoto, H. Iio and T. Tokoroyama, Tetrahedron Lett., 1987, 28, 4561; H. Iio, A. Fujii, M. Ishii and T. Tokoroyama, J. Chem. Soc., Chem. Commun., 1991, 1390; M. Franciotti, A. Mann and M. Taddei, Tetrahedron Lett., 1991, 32, 6783; A. Fujii, Y. Usuki, H. Iio and T. Tokoroyama, Synlett, 1994, 725.
17. M. Ochiai, K. Sumi and E. Fujita, Chem. Pharm. Bull, Jpn., 1984, 32, 3686; M. Tsukamoto, H. Iio and T. Tokoroyama, Tetrahedron Lett., 1987, 28, 4561; H. Iio, A. Fujii, M. Ishii and T. Tokoroyama, J. Chem. Soc., Chem. Commun., 1991, 1390; M. Franciotti, A. Mann and M. Taddei, Tetrahedron Lett., 1991, 32, 6783; A. Fujii, Y. Usuki, H. Iio and T. Tokoroyama, Synlett, 1994, 725.
18. M. Ochiai, K. Sumi and E. Fujita, Chem. Pharm. Bull, Jpn., 1984, 32, 3686; M. Tsukamoto, H. Iio and T. Tokoroyama, Tetrahedron Lett., 1987, 28, 4561; H. Iio, A. Fujii, M. Ishii and T. Tokoroyama, J. Chem. Soc., Chem. Commun., 1991, 1390; M. Franciotti, A. Mann and M. Taddei, Tetrahedron Lett., 1991, 32, 6783; A. Fujii, Y. Usuki, H. Iio and T. Tokoroyama, Synlett, 1994, 725.
19. M. Ochiai, K. Sumi and E. Fujita, Chem. Pharm. Bull, Jpn., 1984, 32, 3686; M. Tsukamoto, H. Iio and T. Tokoroyama, Tetrahedron Lett., 1987, 28, 4561; H. Iio, A. Fujii, M. Ishii and T. Tokoroyama, J. Chem. Soc., Chem. Commun., 1991, 1390; M. Franciotti, A. Mann and M. Taddei, Tetrahedron Lett., 1991, 32, 6783; A. Fujii, Y. Usuki, H. Iio and T. Tokoroyama, Synlett, 1994, 725.
20. C. Eaborn and F. M. S. Mahmoud, J. Organomet. Chem., 1981, 209, 13; W. Kirmse and F. Söllenböhmer, J. Chem. Soc., Chem. Commun., 1989, 774; C. Eaborn and P. B. Hitchcock, J. Chem. Soc., Perkin Trans. 2, 1991, 1137; T. Harada, S. Imamaka, Y. Ohyama, Y. Matsuda and A. Oku, Tetrahedron Lett., 1992, 33, 5807; P. F. Hudrlik, Y. M. Abdallah and A. M. Hudrlik, Tetrahedron Lett., 1992, 33, 6743 and 6747; K. Takaku, H. Shinokubo and K. Oshima, Tetrahedron Lett., 1998, 39, 2575; Y. M. Hijii, P. F. Hudrlik and A. M. Hudrlik, Chem. Commun., 1998, 1213. See also N. D. Hone, S. G. Davies, N. J. Devereux, S. L. Taylor and A. D. Baxter, Tetrahedron Lett., 1998, 39, 897.
21. C. Eaborn and F. M. S. Mahmoud, J. Organomet. Chem., 1981, 209, 13; W. Kirmse and F. Söllenböhmer, J. Chem. Soc., Chem. Commun., 1989, 774; C. Eaborn and P. B. Hitchcock, J. Chem. Soc., Perkin Trans. 2, 1991, 1137; T. Harada, S. Imamaka, Y. Ohyama, Y. Matsuda and A. Oku, Tetrahedron Lett., 1992, 33, 5807; P. F. Hudrlik, Y. M. Abdallah and A. M. Hudrlik, Tetrahedron Lett., 1992, 33, 6743 and 6747; K. Takaku, H. Shinokubo and K. Oshima, Tetrahedron Lett., 1998, 39, 2575; Y. M. Hijii, P. F. Hudrlik and A. M. Hudrlik, Chem. Commun., 1998, 1213. See also N. D. Hone, S. G. Davies, N. J. Devereux, S. L. Taylor and A. D. Baxter, Tetrahedron Lett., 1998, 39, 897.
22. C. Eaborn and F. M. S. Mahmoud, J. Organomet. Chem., 1981, 209, 13; W. Kirmse and F. Söllenböhmer, J. Chem. Soc., Chem. Commun., 1989, 774; C. Eaborn and P. B. Hitchcock, J. Chem. Soc., Perkin Trans. 2, 1991, 1137; T. Harada, S. Imamaka, Y. Ohyama, Y. Matsuda and A. Oku, Tetrahedron Lett., 1992, 33, 5807; P. F. Hudrlik, Y. M. Abdallah and A. M. Hudrlik, Tetrahedron Lett., 1992, 33, 6743 and 6747; K. Takaku, H. Shinokubo and K. Oshima, Tetrahedron Lett., 1998, 39, 2575; Y. M. Hijii, P. F. Hudrlik and A. M. Hudrlik, Chem. Commun., 1998, 1213. See also N. D. Hone, S. G. Davies, N. J. Devereux, S. L. Taylor and A. D. Baxter, Tetrahedron Lett., 1998, 39, 897.
23. C. Eaborn and F. M. S. Mahmoud, J. Organomet. Chem., 1981, 209, 13; W. Kirmse and F. Söllenböhmer, J. Chem. Soc., Chem. Commun., 1989, 774; C. Eaborn and P. B. Hitchcock, J. Chem. Soc., Perkin Trans. 2, 1991, 1137; T. Harada, S. Imamaka, Y. Ohyama, Y. Matsuda and A. Oku, Tetrahedron Lett., 1992, 33, 5807; P. F. Hudrlik, Y. M. Abdallah and A. M. Hudrlik, Tetrahedron Lett., 1992, 33, 6743 and 6747; K. Takaku, H. Shinokubo and K. Oshima, Tetrahedron Lett., 1998, 39, 2575; Y. M. Hijii, P. F. Hudrlik and A. M. Hudrlik, Chem. Commun., 1998, 1213. See also N. D. Hone, S. G. Davies, N. J. Devereux, S. L. Taylor and A. D. Baxter, Tetrahedron Lett., 1998, 39, 897.
24. C. Eaborn and F. M. S. Mahmoud, J. Organomet. Chem., 1981, 209, 13; W. Kirmse and F. Söllenböhmer, J. Chem. Soc., Chem. Commun., 1989, 774; C. Eaborn and P. B. Hitchcock, J. Chem. Soc., Perkin Trans. 2, 1991, 1137; T. Harada, S. Imamaka, Y. Ohyama, Y. Matsuda and A. Oku, Tetrahedron Lett., 1992, 33, 5807; P. F. Hudrlik, Y. M. Abdallah and A. M. Hudrlik, Tetrahedron Lett., 1992, 33, 6743 and 6747; K. Takaku, H. Shinokubo and K. Oshima, Tetrahedron Lett., 1998, 39, 2575; Y. M. Hijii, P. F. Hudrlik and A. M. Hudrlik, Chem. Commun., 1998, 1213. See also N. D. Hone, S. G. Davies, N. J. Devereux, S. L. Taylor and A. D. Baxter, Tetrahedron Lett., 1998, 39, 897.
25. C. Eaborn and F. M. S. Mahmoud, J. Organomet. Chem., 1981, 209, 13; W. Kirmse and F. Söllenböhmer, J. Chem. Soc., Chem. Commun., 1989, 774; C. Eaborn and P. B. Hitchcock, J. Chem. Soc., Perkin Trans. 2, 1991, 1137; T. Harada, S. Imamaka, Y. Ohyama, Y. Matsuda and A. Oku, Tetrahedron Lett., 1992, 33, 5807; P. F. Hudrlik, Y. M. Abdallah and A. M. Hudrlik, Tetrahedron Lett., 1992, 33, 6743 and 6747; K. Takaku, H. Shinokubo and K. Oshima, Tetrahedron Lett., 1998, 39, 2575; Y. M. Hijii, P. F. Hudrlik and A. M. Hudrlik, Chem. Commun., 1998, 1213. See also N. D. Hone, S. G. Davies, N. J. Devereux, S. L. Taylor and A. D. Baxter, Tetrahedron Lett., 1998, 39, 897.
26. C. Eaborn and F. M. S. Mahmoud, J. Organomet. Chem., 1981, 209, 13; W. Kirmse and F. Söllenböhmer, J. Chem. Soc., Chem. Commun., 1989, 774; C. Eaborn and P. B. Hitchcock, J. Chem. Soc., Perkin Trans. 2, 1991, 1137; T. Harada, S. Imamaka, Y. Ohyama, Y. Matsuda and A. Oku, Tetrahedron Lett., 1992, 33, 5807; P. F. Hudrlik, Y. M. Abdallah and A. M. Hudrlik, Tetrahedron Lett., 1992, 33, 6743 and 6747; K. Takaku, H. Shinokubo and K. Oshima, Tetrahedron Lett., 1998, 39, 2575; Y. M. Hijii, P. F. Hudrlik and A. M. Hudrlik, Chem. Commun., 1998, 1213. See also N. D. Hone, S. G. Davies, N. J. Devereux, S. L. Taylor and A. D. Baxter, Tetrahedron Lett., 1998, 39, 897.
27. C. Eaborn and F. M. S. Mahmoud, J. Organomet. Chem., 1981, 209, 13; W. Kirmse and F. Söllenböhmer, J. Chem. Soc., Chem. Commun., 1989, 774; C. Eaborn and P. B. Hitchcock, J. Chem. Soc., Perkin Trans. 2, 1991, 1137; T. Harada, S. Imamaka, Y. Ohyama, Y. Matsuda and A. Oku, Tetrahedron Lett., 1992, 33, 5807; P. F. Hudrlik, Y. M. Abdallah and A. M. Hudrlik, Tetrahedron Lett., 1992, 33, 6743 and 6747; K. Takaku, H. Shinokubo and K. Oshima, Tetrahedron Lett., 1998, 39, 2575; Y. M. Hijii, P. F. Hudrlik and A. M. Hudrlik, Chem. Commun., 1998, 1213. See also N. D. Hone, S. G. Davies, N. J. Devereux, S. L. Taylor and A. D. Baxter, Tetrahedron Lett., 1998, 39, 897.
28. K. Takeda, J. Nakatani, H. Nakamura, K. Sako, E. Yoshii and K. Yamaguchi, Synlett, 1993, 841.
29. T. Sato, M. Watanabe and E. Murayama, Tetrahedron Lett., 1986, 27, 1621; T. Sato, M. Watanabe, T. Watanabe, Y. Onoda and E. Murayama, J. Org. Chem., 1988, 53, 1894; T. Sato, T. Watanabe, T. Hayata and T. Tsukui, J. Chem. Soc., Chem. Commun., 1989, 153; T. Sato, M. Hayashi and T. Hayata, Tetrahedron, 1992, 48, 4099; J. Fujiwara, T. Yamamoto and T. Sato, Chem. Lett., 1992, 1775; J. Fujiwara and T. Sato, Bull. Chem. Soc. Jpn., 1993, 66, 1258; M. Yamamoto, M. Nakazawa, K. Kishikawa and S. Kohmoto, Chem. Commun., 1996, 2353.
30. T. Sato, M. Watanabe and E. Murayama, Tetrahedron Lett., 1986, 27, 1621; T. Sato, M. Watanabe, T. Watanabe, Y. Onoda and E. Murayama, J. Org. Chem., 1988, 53, 1894; T. Sato, T. Watanabe, T. Hayata and T. Tsukui, J. Chem. Soc., Chem. Commun., 1989, 153; T. Sato, M. Hayashi and T. Hayata, Tetrahedron, 1992, 48, 4099; J. Fujiwara, T. Yamamoto and T. Sato, Chem. Lett., 1992, 1775; J. Fujiwara and T. Sato, Bull. Chem. Soc. Jpn., 1993, 66, 1258; M. Yamamoto, M. Nakazawa, K. Kishikawa and S. Kohmoto, Chem. Commun., 1996, 2353.
31. T. Sato, M. Watanabe and E. Murayama, Tetrahedron Lett., 1986, 27, 1621; T. Sato, M. Watanabe, T. Watanabe, Y. Onoda and E. Murayama, J. Org. Chem., 1988, 53, 1894; T. Sato, T. Watanabe, T. Hayata and T. Tsukui, J. Chem. Soc., Chem. Commun., 1989, 153; T. Sato, M. Hayashi and T. Hayata, Tetrahedron, 1992, 48, 4099; J. Fujiwara, T. Yamamoto and T. Sato, Chem. Lett., 1992, 1775; J. Fujiwara and T. Sato, Bull. Chem. Soc. Jpn., 1993, 66, 1258; M. Yamamoto, M. Nakazawa, K. Kishikawa and S. Kohmoto, Chem. Commun., 1996, 2353.
32. T. Sato, M. Watanabe and E. Murayama, Tetrahedron Lett., 1986, 27, 1621; T. Sato, M. Watanabe, T. Watanabe, Y. Onoda and E. Murayama, J. Org. Chem., 1988, 53, 1894; T. Sato, T. Watanabe, T. Hayata and T. Tsukui, J. Chem. Soc., Chem. Commun., 1989, 153; T. Sato, M. Hayashi and T. Hayata, Tetrahedron, 1992, 48, 4099; J. Fujiwara, T. Yamamoto and T. Sato, Chem. Lett., 1992, 1775; J. Fujiwara and T. Sato, Bull. Chem. Soc. Jpn., 1993, 66, 1258; M. Yamamoto, M. Nakazawa, K. Kishikawa and S. Kohmoto, Chem. Commun., 1996, 2353.
33. T. Sato, M. Watanabe and E. Murayama, Tetrahedron Lett., 1986, 27, 1621; T. Sato, M. Watanabe, T. Watanabe, Y. Onoda and E. Murayama, J. Org. Chem., 1988, 53, 1894; T. Sato, T. Watanabe, T. Hayata and T. Tsukui, J. Chem. Soc., Chem. Commun., 1989, 153; T. Sato, M. Hayashi and T. Hayata, Tetrahedron, 1992, 48, 4099; J. Fujiwara, T. Yamamoto and T. Sato, Chem. Lett., 1992, 1775; J. Fujiwara and T. Sato, Bull. Chem. Soc. Jpn., 1993, 66, 1258; M. Yamamoto, M. Nakazawa, K. Kishikawa and S. Kohmoto, Chem. Commun., 1996, 2353.
34. T. Sato, M. Watanabe and E. Murayama, Tetrahedron Lett., 1986, 27, 1621; T. Sato, M. Watanabe, T. Watanabe, Y. Onoda and E. Murayama, J. Org. Chem., 1988, 53, 1894; T. Sato, T. Watanabe, T. Hayata and T. Tsukui, J. Chem. Soc., Chem. Commun., 1989, 153; T. Sato, M. Hayashi and T. Hayata, Tetrahedron, 1992, 48, 4099; J. Fujiwara, T. Yamamoto and T. Sato, Chem. Lett., 1992, 1775; J. Fujiwara and T. Sato, Bull. Chem. Soc. Jpn., 1993, 66, 1258; M. Yamamoto, M. Nakazawa, K. Kishikawa and S. Kohmoto, Chem. Commun., 1996, 2353.
35. T. Sato, M. Watanabe and E. Murayama, Tetrahedron Lett., 1986, 27, 1621; T. Sato, M. Watanabe, T. Watanabe, Y. Onoda and E. Murayama, J. Org. Chem., 1988, 53, 1894; T. Sato, T. Watanabe, T. Hayata and T. Tsukui, J. Chem. Soc., Chem. Commun., 1989, 153; T. Sato, M. Hayashi and T. Hayata, Tetrahedron, 1992, 48, 4099; J. Fujiwara, T. Yamamoto and T. Sato, Chem. Lett., 1992, 1775; J. Fujiwara and T. Sato, Bull. Chem. Soc. Jpn., 1993, 66, 1258; M. Yamamoto, M. Nakazawa, K. Kishikawa and S. Kohmoto, Chem. Commun., 1996, 2353.
36. I. Fleming and J. Goldhill, J. Chem. Soc., Perkin Trans. 1, 1980, 1493; I. Fleming and D. A. Perry, Tetrahedron, 1981, 37, 4027; several papers from the Asaoka group reviewed in I. Fleming, A. Barbero and D. Walter, Chem. Rev., 1997, 97, 2063.
37. I. Fleming and J. Goldhill, J. Chem. Soc., Perkin Trans. 1, 1980, 1493; I. Fleming and D. A. Perry, Tetrahedron, 1981, 37, 4027; several papers from the Asaoka group reviewed in I. Fleming, A. Barbero and D. Walter, Chem. Rev., 1997, 97, 2063.
38. I. Fleming and J. Goldhill, J. Chem. Soc., Perkin Trans. 1, 1980, 1493; I. Fleming and D. A. Perry, Tetrahedron, 1981, 37, 4027; several papers from the Asaoka group reviewed in I. Fleming, A. Barbero and D. Walter, Chem. Rev., 1997, 97, 2063.
39. I. Fleming, Chemtracts: Org. Chem., 1996, 9, 1; G. R. Jones and Y. Landais, Tetrahedron, 1996, 37, 7599; K. Tamao, Adv. Silicon Chem., 3, 1.
40. I. Fleming, Chemtracts: Org. Chem., 1996, 9, 1; G. R. Jones and Y. Landais, Tetrahedron, 1996, 37, 7599; K. Tamao, Adv. Silicon Chem., 3, 1.
41. I. Fleming, Chemtracts: Org. Chem., 1996, 9, 1; G. R. Jones and Y. Landais, Tetrahedron, 1996, 37, 7599; K. Tamao, Adv. Silicon Chem., 3, 1.
42. K. Tanino, K. Sato and I. Kuwajima, Tetrahedron Lett., 1989, 30, 6551.
43. S. C. Archibald and I. Fleming, Tetrahedron Lett., 1993, 34, 2387.
44. A. R. Katritzky, M. V. Voronkov and D. Toader, J. Chem. Soc., Perkin Trans. 2, 1998, 2515.
45. D. D. Davis and H. T. Johnson, J. Am. Chem. Soc., 1974, 96, 7576; D. D. Davis and R. H. Black, J. Organomet. Chem., 1974, 82, C-30; S. Teratake, Chem. Lett., 1974, 1123; R. H. Fish and B. M. Broline, J. Organomet. Chem., 1978, 159, 255; D. C. McWilliam, T. R. Balasubramanian and H. G. Kuivila, J. Am. Chem. Soc., 1978, 100, 6407; I. Fleming and C. J. Urch, J. Organomet. Chem., 1985, 285, 173; C. R. Johnson and J. F. Kadow, J. Org. Chem., 1987, 52, 1493; L. Plamondon and J. D. Wuest, J. Org. Chem., 1991, 56, 2066 and 2076; T. Sato, T. Kikuchi, H. Tsujita, A. Kaetsu, N. Sootome, K. Nishida and E. Murayama, Tetrahedron, 1991, 47, 3281; T. Sato and S. Nagatsuka, Synlett, 1995, 653; R. L. Beddoes, M. L. Lewis, P. Quayle, S. Johal, M. Atwood and D. Hurst, Tetrahedron Lett., 1995, 36, 471; S. Hanessian, U. Reinhold and S. Ninkovic, Tetrahedron Lett., 1996, 37, 8976; N. Isono and M. Mori, J. Org. Chem., 1997, 62, 7867; H. Wakamatsu, N. Isono and M. Mori, J. Org. Chem., 1997, 62, 8917; A. Krief and L. Provins, Tetrahedron Lett., 1998, 39, 2017. But for notable exceptions, see G. D. Hartman and T. G. Traylor, J. Am. Chem. Soc., 1975, 97, 6147; M. J. Goldstein and J. P. Barren Helv. Chim. Acta, 1986, 69, 548.
46. D. D. Davis and H. T. Johnson, J. Am. Chem. Soc., 1974, 96, 7576; D. D. Davis and R. H. Black, J. Organomet. Chem., 1974, 82, C-30; S. Teratake, Chem. Lett., 1974, 1123; R. H. Fish and B. M. Broline, J. Organomet. Chem., 1978, 159, 255; D. C. McWilliam, T. R. Balasubramanian and H. G. Kuivila, J. Am. Chem. Soc., 1978, 100, 6407; I. Fleming and C. J. Urch, J. Organomet. Chem., 1985, 285, 173; C. R. Johnson and J. F. Kadow, J. Org. Chem., 1987, 52, 1493; L. Plamondon and J. D. Wuest, J. Org. Chem., 1991, 56, 2066 and 2076; T. Sato, T. Kikuchi, H. Tsujita, A. Kaetsu, N. Sootome, K. Nishida and E. Murayama, Tetrahedron, 1991, 47, 3281; T. Sato and S. Nagatsuka, Synlett, 1995, 653; R. L. Beddoes, M. L. Lewis, P. Quayle, S. Johal, M. Atwood and D. Hurst, Tetrahedron Lett., 1995, 36, 471; S. Hanessian, U. Reinhold and S. Ninkovic, Tetrahedron Lett., 1996, 37, 8976; N. Isono and M. Mori, J. Org. Chem., 1997, 62, 7867; H. Wakamatsu, N. Isono and M. Mori, J. Org. Chem., 1997, 62, 8917; A. Krief and L. Provins, Tetrahedron Lett., 1998, 39, 2017. But for notable exceptions, see G. D. Hartman and T. G. Traylor, J. Am. Chem. Soc., 1975, 97, 6147; M. J. Goldstein and J. P. Barren Helv. Chim. Acta, 1986, 69, 548.
47. D. D. Davis and H. T. Johnson, J. Am. Chem. Soc., 1974, 96, 7576; D. D. Davis and R. H. Black, J. Organomet. Chem., 1974, 82, C-30; S. Teratake, Chem. Lett., 1974, 1123; R. H. Fish and B. M. Broline, J. Organomet. Chem., 1978, 159, 255; D. C. McWilliam, T. R. Balasubramanian and H. G. Kuivila, J. Am. Chem. Soc., 1978, 100, 6407; I. Fleming and C. J. Urch, J. Organomet. Chem., 1985, 285, 173; C. R. Johnson and J. F. Kadow, J. Org. Chem., 1987, 52, 1493; L. Plamondon and J. D. Wuest, J. Org. Chem., 1991, 56, 2066 and 2076; T. Sato, T. Kikuchi, H. Tsujita, A. Kaetsu, N. Sootome, K. Nishida and E. Murayama, Tetrahedron, 1991, 47, 3281; T. Sato and S. Nagatsuka, Synlett, 1995, 653; R. L. Beddoes, M. L. Lewis, P. Quayle, S. Johal, M. Atwood and D. Hurst, Tetrahedron Lett., 1995, 36, 471; S. Hanessian, U. Reinhold and S. Ninkovic, Tetrahedron Lett., 1996, 37, 8976; N. Isono and M. Mori, J. Org. Chem., 1997, 62, 7867; H. Wakamatsu, N. Isono and M. Mori, J. Org. Chem., 1997, 62, 8917; A. Krief and L. Provins, Tetrahedron Lett., 1998, 39, 2017. But for notable exceptions, see G. D. Hartman and T. G. Traylor, J. Am. Chem. Soc., 1975, 97, 6147; M. J. Goldstein and J. P. Barren Helv. Chim. Acta, 1986, 69, 548.
48. D. D. Davis and H. T. Johnson, J. Am. Chem. Soc., 1974, 96, 7576; D. D. Davis and R. H. Black, J. Organomet. Chem., 1974, 82, C-30; S. Teratake, Chem. Lett., 1974, 1123; R. H. Fish and B. M. Broline, J. Organomet. Chem., 1978, 159, 255; D. C. McWilliam, T. R. Balasubramanian and H. G. Kuivila, J. Am. Chem. Soc., 1978, 100, 6407; I. Fleming and C. J. Urch, J. Organomet. Chem., 1985, 285, 173; C. R. Johnson and J. F. Kadow, J. Org. Chem., 1987, 52, 1493; L. Plamondon and J. D. Wuest, J. Org. Chem., 1991, 56, 2066 and 2076; T. Sato, T. Kikuchi, H. Tsujita, A. Kaetsu, N. Sootome, K. Nishida and E. Murayama, Tetrahedron, 1991, 47, 3281; T. Sato and S. Nagatsuka, Synlett, 1995, 653; R. L. Beddoes, M. L. Lewis, P. Quayle, S. Johal, M. Atwood and D. Hurst, Tetrahedron Lett., 1995, 36, 471; S. Hanessian, U. Reinhold and S. Ninkovic, Tetrahedron Lett., 1996, 37, 8976; N. Isono and M. Mori, J. Org. Chem., 1997, 62, 7867; H. Wakamatsu, N. Isono and M. Mori, J. Org. Chem., 1997, 62, 8917; A. Krief and L. Provins, Tetrahedron Lett., 1998, 39, 2017. But for notable exceptions, see G. D. Hartman and T. G. Traylor, J. Am. Chem. Soc., 1975, 97, 6147; M. J. Goldstein and J. P. Barren Helv. Chim. Acta, 1986, 69, 548.
49. D. D. Davis and H. T. Johnson, J. Am. Chem. Soc., 1974, 96, 7576; D. D. Davis and R. H. Black, J. Organomet. Chem., 1974, 82, C-30; S. Teratake, Chem. Lett., 1974, 1123; R. H. Fish and B. M. Broline, J. Organomet. Chem., 1978, 159, 255; D. C. McWilliam, T. R. Balasubramanian and H. G. Kuivila, J. Am. Chem. Soc., 1978, 100, 6407; I. Fleming and C. J. Urch, J. Organomet. Chem., 1985, 285, 173; C. R. Johnson and J. F. Kadow, J. Org. Chem., 1987, 52, 1493; L. Plamondon and J. D. Wuest, J. Org. Chem., 1991, 56, 2066 and 2076; T. Sato, T. Kikuchi, H. Tsujita, A. Kaetsu, N. Sootome, K. Nishida and E. Murayama, Tetrahedron, 1991, 47, 3281; T. Sato and S. Nagatsuka, Synlett, 1995, 653; R. L. Beddoes, M. L. Lewis, P. Quayle, S. Johal, M. Atwood and D. Hurst, Tetrahedron Lett., 1995, 36, 471; S. Hanessian, U. Reinhold and S. Ninkovic, Tetrahedron Lett., 1996, 37, 8976; N. Isono and M. Mori, J. Org. Chem., 1997, 62, 7867; H. Wakamatsu, N. Isono and M. Mori, J. Org. Chem., 1997, 62, 8917; A. Krief and L. Provins, Tetrahedron Lett., 1998, 39, 2017. But for notable exceptions, see G. D. Hartman and T. G. Traylor, J. Am. Chem. Soc., 1975, 97, 6147; M. J. Goldstein and J. P. Barren Helv. Chim. Acta, 1986, 69, 548.
50. D. D. Davis and H. T. Johnson, J. Am. Chem. Soc., 1974, 96, 7576; D. D. Davis and R. H. Black, J. Organomet. Chem., 1974, 82, C-30; S. Teratake, Chem. Lett., 1974, 1123; R. H. Fish and B. M. Broline, J. Organomet. Chem., 1978, 159, 255; D. C. McWilliam, T. R. Balasubramanian and H. G. Kuivila, J. Am. Chem. Soc., 1978, 100, 6407; I. Fleming and C. J. Urch, J. Organomet. Chem., 1985, 285, 173; C. R. Johnson and J. F. Kadow, J. Org. Chem., 1987, 52, 1493; L. Plamondon and J. D. Wuest, J. Org. Chem., 1991, 56, 2066 and 2076; T. Sato, T. Kikuchi, H. Tsujita, A. Kaetsu, N. Sootome, K. Nishida and E. Murayama, Tetrahedron, 1991, 47, 3281; T. Sato and S. Nagatsuka, Synlett, 1995, 653; R. L. Beddoes, M. L. Lewis, P. Quayle, S. Johal, M. Atwood and D. Hurst, Tetrahedron Lett., 1995, 36, 471; S. Hanessian, U. Reinhold and S. Ninkovic, Tetrahedron Lett., 1996, 37, 8976; N. Isono and M. Mori, J. Org. Chem., 1997, 62, 7867; H. Wakamatsu, N. Isono and M. Mori, J. Org. Chem., 1997, 62, 8917; A. Krief and L. Provins, Tetrahedron Lett., 1998, 39, 2017. But for notable exceptions, see G. D. Hartman and T. G. Traylor, J. Am. Chem. Soc., 1975, 97, 6147; M. J. Goldstein and J. P. Barren Helv. Chim. Acta, 1986, 69, 548.
51. D. D. Davis and H. T. Johnson, J. Am. Chem. Soc., 1974, 96, 7576; D. D. Davis and R. H. Black, J. Organomet. Chem., 1974, 82, C-30; S. Teratake, Chem. Lett., 1974, 1123; R. H. Fish and B. M. Broline, J. Organomet. Chem., 1978, 159, 255; D. C. McWilliam, T. R. Balasubramanian and H. G. Kuivila, J. Am. Chem. Soc., 1978, 100, 6407; I. Fleming and C. J. Urch, J. Organomet. Chem., 1985, 285, 173; C. R. Johnson and J. F. Kadow, J. Org. Chem., 1987, 52, 1493; L. Plamondon and J. D. Wuest, J. Org. Chem., 1991, 56, 2066 and 2076; T. Sato, T. Kikuchi, H. Tsujita, A. Kaetsu, N. Sootome, K. Nishida and E. Murayama, Tetrahedron, 1991, 47, 3281; T. Sato and S. Nagatsuka, Synlett, 1995, 653; R. L. Beddoes, M. L. Lewis, P. Quayle, S. Johal, M. Atwood and D. Hurst, Tetrahedron Lett., 1995, 36, 471; S. Hanessian, U. Reinhold and S. Ninkovic, Tetrahedron Lett., 1996, 37, 8976; N. Isono and M. Mori, J. Org. Chem., 1997, 62, 7867; H. Wakamatsu, N. Isono and M. Mori, J. Org. Chem., 1997, 62, 8917; A. Krief and L. Provins, Tetrahedron Lett., 1998, 39, 2017. But for notable exceptions, see G. D. Hartman and T. G. Traylor, J. Am. Chem. Soc., 1975, 97, 6147; M. J. Goldstein and J. P. Barren Helv. Chim. Acta, 1986, 69, 548.
52. D. D. Davis and H. T. Johnson, J. Am. Chem. Soc., 1974, 96, 7576; D. D. Davis and R. H. Black, J. Organomet. Chem., 1974, 82, C-30; S. Teratake, Chem. Lett., 1974, 1123; R. H. Fish and B. M. Broline, J. Organomet. Chem., 1978, 159, 255; D. C. McWilliam, T. R. Balasubramanian and H. G. Kuivila, J. Am. Chem. Soc., 1978, 100, 6407; I. Fleming and C. J. Urch, J. Organomet. Chem., 1985, 285, 173; C. R. Johnson and J. F. Kadow, J. Org. Chem., 1987, 52, 1493; L. Plamondon and J. D. Wuest, J. Org. Chem., 1991, 56, 2066 and 2076; T. Sato, T. Kikuchi, H. Tsujita, A. Kaetsu, N. Sootome, K. Nishida and E. Murayama, Tetrahedron, 1991, 47, 3281; T. Sato and S. Nagatsuka, Synlett, 1995, 653; R. L. Beddoes, M. L. Lewis, P. Quayle, S. Johal, M. Atwood and D. Hurst, Tetrahedron Lett., 1995, 36, 471; S. Hanessian, U. Reinhold and S. Ninkovic, Tetrahedron Lett., 1996, 37, 8976; N. Isono and M. Mori, J. Org. Chem., 1997, 62, 7867; H. Wakamatsu, N. Isono and M. Mori, J. Org. Chem., 1997, 62, 8917; A. Krief and L. Provins, Tetrahedron Lett., 1998, 39, 2017. But for notable exceptions, see G. D. Hartman and T. G. Traylor, J. Am. Chem. Soc., 1975, 97, 6147; M. J. Goldstein and J. P. Barren Helv. Chim. Acta, 1986, 69, 548.
53. D. D. Davis and H. T. Johnson, J. Am. Chem. Soc., 1974, 96, 7576; D. D. Davis and R. H. Black, J. Organomet. Chem., 1974, 82, C-30; S. Teratake, Chem. Lett., 1974, 1123; R. H. Fish and B. M. Broline, J. Organomet. Chem., 1978, 159, 255; D. C. McWilliam, T. R. Balasubramanian and H. G. Kuivila, J. Am. Chem. Soc., 1978, 100, 6407; I. Fleming and C. J. Urch, J. Organomet. Chem., 1985, 285, 173; C. R. Johnson and J. F. Kadow, J. Org. Chem., 1987, 52, 1493; L. Plamondon and J. D. Wuest, J. Org. Chem., 1991, 56, 2066 and 2076; T. Sato, T. Kikuchi, H. Tsujita, A. Kaetsu, N. Sootome, K. Nishida and E. Murayama, Tetrahedron, 1991, 47, 3281; T. Sato and S. Nagatsuka, Synlett, 1995, 653; R. L. Beddoes, M. L. Lewis, P. Quayle, S. Johal, M. Atwood and D. Hurst, Tetrahedron Lett., 1995, 36, 471; S. Hanessian, U. Reinhold and S. Ninkovic, Tetrahedron Lett., 1996, 37, 8976; N. Isono and M. Mori, J. Org. Chem., 1997, 62, 7867; H. Wakamatsu, N. Isono and M. Mori, J. Org. Chem., 1997, 62, 8917; A. Krief and L. Provins, Tetrahedron Lett., 1998, 39, 2017. But for notable exceptions, see G. D. Hartman and T. G. Traylor, J. Am. Chem. Soc., 1975, 97, 6147; M. J. Goldstein and J. P. Barren Helv. Chim. Acta, 1986, 69, 548.
54. D. D. Davis and H. T. Johnson, J. Am. Chem. Soc., 1974, 96, 7576; D. D. Davis and R. H. Black, J. Organomet. Chem., 1974, 82, C-30; S. Teratake, Chem. Lett., 1974, 1123; R. H. Fish and B. M. Broline, J. Organomet. Chem., 1978, 159, 255; D. C. McWilliam, T. R. Balasubramanian and H. G. Kuivila, J. Am. Chem. Soc., 1978, 100, 6407; I. Fleming and C. J. Urch, J. Organomet. Chem., 1985, 285, 173; C. R. Johnson and J. F. Kadow, J. Org. Chem., 1987, 52, 1493; L. Plamondon and J. D. Wuest, J. Org. Chem., 1991, 56, 2066 and 2076; T. Sato, T. Kikuchi, H. Tsujita, A. Kaetsu, N. Sootome, K. Nishida and E. Murayama, Tetrahedron, 1991, 47, 3281; T. Sato and S. Nagatsuka, Synlett, 1995, 653; R. L. Beddoes, M. L. Lewis, P. Quayle, S. Johal, M. Atwood and D. Hurst, Tetrahedron Lett., 1995, 36, 471; S. Hanessian, U. Reinhold and S. Ninkovic, Tetrahedron Lett., 1996, 37, 8976; N. Isono and M. Mori, J. Org. Chem., 1997, 62, 7867; H. Wakamatsu, N. Isono and M. Mori, J. Org. Chem., 1997, 62, 8917; A. Krief and L. Provins, Tetrahedron Lett., 1998, 39, 2017. But for notable exceptions, see G. D. Hartman and T. G. Traylor, J. Am. Chem. Soc., 1975, 97, 6147; M. J. Goldstein and J. P. Barren Helv. Chim. Acta, 1986, 69, 548.
55. D. D. Davis and H. T. Johnson, J. Am. Chem. Soc., 1974, 96, 7576; D. D. Davis and R. H. Black, J. Organomet. Chem., 1974, 82, C-30; S. Teratake, Chem. Lett., 1974, 1123; R. H. Fish and B. M. Broline, J. Organomet. Chem., 1978, 159, 255; D. C. McWilliam, T. R. Balasubramanian and H. G. Kuivila, J. Am. Chem. Soc., 1978, 100, 6407; I. Fleming and C. J. Urch, J. Organomet. Chem., 1985, 285, 173; C. R. Johnson and J. F. Kadow, J. Org. Chem., 1987, 52, 1493; L. Plamondon and J. D. Wuest, J. Org. Chem., 1991, 56, 2066 and 2076; T. Sato, T. Kikuchi, H. Tsujita, A. Kaetsu, N. Sootome, K. Nishida and E. Murayama, Tetrahedron, 1991, 47, 3281; T. Sato and S. Nagatsuka, Synlett, 1995, 653; R. L. Beddoes, M. L. Lewis, P. Quayle, S. Johal, M. Atwood and D. Hurst, Tetrahedron Lett., 1995, 36, 471; S. Hanessian, U. Reinhold and S. Ninkovic, Tetrahedron Lett., 1996, 37, 8976; N. Isono and M. Mori, J. Org. Chem., 1997, 62, 7867; H. Wakamatsu, N. Isono and M. Mori, J. Org. Chem., 1997, 62, 8917; A. Krief and L. Provins, Tetrahedron Lett., 1998, 39, 2017. But for notable exceptions, see G. D. Hartman and T. G. Traylor, J. Am. Chem. Soc., 1975, 97, 6147; M. J. Goldstein and J. P. Barren Helv. Chim. Acta, 1986, 69, 548.
56. D. D. Davis and H. T. Johnson, J. Am. Chem. Soc., 1974, 96, 7576; D. D. Davis and R. H. Black, J. Organomet. Chem., 1974, 82, C-30; S. Teratake, Chem. Lett., 1974, 1123; R. H. Fish and B. M. Broline, J. Organomet. Chem., 1978, 159, 255; D. C. McWilliam, T. R. Balasubramanian and H. G. Kuivila, J. Am. Chem. Soc., 1978, 100, 6407; I. Fleming and C. J. Urch, J. Organomet. Chem., 1985, 285, 173; C. R. Johnson and J. F. Kadow, J. Org. Chem., 1987, 52, 1493; L. Plamondon and J. D. Wuest, J. Org. Chem., 1991, 56, 2066 and 2076; T. Sato, T. Kikuchi, H. Tsujita, A. Kaetsu, N. Sootome, K. Nishida and E. Murayama, Tetrahedron, 1991, 47, 3281; T. Sato and S. Nagatsuka, Synlett, 1995, 653; R. L. Beddoes, M. L. Lewis, P. Quayle, S. Johal, M. Atwood and D. Hurst, Tetrahedron Lett., 1995, 36, 471; S. Hanessian, U. Reinhold and S. Ninkovic, Tetrahedron Lett., 1996, 37, 8976; N. Isono and M. Mori, J. Org. Chem., 1997, 62, 7867; H. Wakamatsu, N. Isono and M. Mori, J. Org. Chem., 1997, 62, 8917; A. Krief and L. Provins, Tetrahedron Lett., 1998, 39, 2017. But for notable exceptions, see G. D. Hartman and T. G. Traylor, J. Am. Chem. Soc., 1975, 97, 6147; M. J. Goldstein and J. P. Barren Helv. Chim. Acta, 1986, 69, 548.
57. D. D. Davis and H. T. Johnson, J. Am. Chem. Soc., 1974, 96, 7576; D. D. Davis and R. H. Black, J. Organomet. Chem., 1974, 82, C-30; S. Teratake, Chem. Lett., 1974, 1123; R. H. Fish and B. M. Broline, J. Organomet. Chem., 1978, 159, 255; D. C. McWilliam, T. R. Balasubramanian and H. G. Kuivila, J. Am. Chem. Soc., 1978, 100, 6407; I. Fleming and C. J. Urch, J. Organomet. Chem., 1985, 285, 173; C. R. Johnson and J. F. Kadow, J. Org. Chem., 1987, 52, 1493; L. Plamondon and J. D. Wuest, J. Org. Chem., 1991, 56, 2066 and 2076; T. Sato, T. Kikuchi, H. Tsujita, A. Kaetsu, N. Sootome, K. Nishida and E. Murayama, Tetrahedron, 1991, 47, 3281; T. Sato and S. Nagatsuka, Synlett, 1995, 653; R. L. Beddoes, M. L. Lewis, P. Quayle, S. Johal, M. Atwood and D. Hurst, Tetrahedron Lett., 1995, 36, 471; S. Hanessian, U. Reinhold and S. Ninkovic, Tetrahedron Lett., 1996, 37, 8976; N. Isono and M. Mori, J. Org. Chem., 1997, 62, 7867; H. Wakamatsu, N. Isono and M. Mori, J. Org. Chem., 1997, 62, 8917; A. Krief and L. Provins, Tetrahedron Lett., 1998, 39, 2017. But for notable exceptions, see G. D. Hartman and T. G. Traylor, J. Am. Chem. Soc., 1975, 97, 6147; M. J. Goldstein and J. P. Barren Helv. Chim. Acta, 1986, 69, 548.
58. D. D. Davis and H. T. Johnson, J. Am. Chem. Soc., 1974, 96, 7576; D. D. Davis and R. H. Black, J. Organomet. Chem., 1974, 82, C-30; S. Teratake, Chem. Lett., 1974, 1123; R. H. Fish and B. M. Broline, J. Organomet. Chem., 1978, 159, 255; D. C. McWilliam, T. R. Balasubramanian and H. G. Kuivila, J. Am. Chem. Soc., 1978, 100, 6407; I. Fleming and C. J. Urch, J. Organomet. Chem., 1985, 285, 173; C. R. Johnson and J. F. Kadow, J. Org. Chem., 1987, 52, 1493; L. Plamondon and J. D. Wuest, J. Org. Chem., 1991, 56, 2066 and 2076; T. Sato, T. Kikuchi, H. Tsujita, A. Kaetsu, N. Sootome, K. Nishida and E. Murayama, Tetrahedron, 1991, 47, 3281; T. Sato and S. Nagatsuka, Synlett, 1995, 653; R. L. Beddoes, M. L. Lewis, P. Quayle, S. Johal, M. Atwood and D. Hurst, Tetrahedron Lett., 1995, 36, 471; S. Hanessian, U. Reinhold and S. Ninkovic, Tetrahedron Lett., 1996, 37, 8976; N. Isono and M. Mori, J. Org. Chem., 1997, 62, 7867; H. Wakamatsu, N. Isono and M. Mori, J. Org. Chem., 1997, 62, 8917; A. Krief and L. Provins, Tetrahedron Lett., 1998, 39, 2017. But for notable exceptions, see G. D. Hartman and T. G. Traylor, J. Am. Chem. Soc., 1975, 97, 6147; M. J. Goldstein and J. P. Barren Helv. Chim. Acta, 1986, 69, 548.
59. D. D. Davis and H. T. Johnson, J. Am. Chem. Soc., 1974, 96, 7576; D. D. Davis and R. H. Black, J. Organomet. Chem., 1974, 82, C-30; S. Teratake, Chem. Lett., 1974, 1123; R. H. Fish and B. M. Broline, J. Organomet. Chem., 1978, 159, 255; D. C. McWilliam, T. R. Balasubramanian and H. G. Kuivila, J. Am. Chem. Soc., 1978, 100, 6407; I. Fleming and C. J. Urch, J. Organomet. Chem., 1985, 285, 173; C. R. Johnson and J. F. Kadow, J. Org. Chem., 1987, 52, 1493; L. Plamondon and J. D. Wuest, J. Org. Chem., 1991, 56, 2066 and 2076; T. Sato, T. Kikuchi, H. Tsujita, A. Kaetsu, N. Sootome, K. Nishida and E. Murayama, Tetrahedron, 1991, 47, 3281; T. Sato and S. Nagatsuka, Synlett, 1995, 653; R. L. Beddoes, M. L. Lewis, P. Quayle, S. Johal, M. Atwood and D. Hurst, Tetrahedron Lett., 1995, 36, 471; S. Hanessian, U. Reinhold and S. Ninkovic, Tetrahedron Lett., 1996, 37, 8976; N. Isono and M. Mori, J. Org. Chem., 1997, 62, 7867; H. Wakamatsu, N. Isono and M. Mori, J. Org. Chem., 1997, 62, 8917; A. Krief and L. Provins, Tetrahedron Lett., 1998, 39, 2017. But for notable exceptions, see G. D. Hartman and T. G. Traylor, J. Am. Chem. Soc., 1975, 97, 6147; M. J. Goldstein and J. P. Barren Helv. Chim. Acta, 1986, 69, 548.
60. D. D. Davis and H. T. Johnson, J. Am. Chem. Soc., 1974, 96, 7576; D. D. Davis and R. H. Black, J. Organomet. Chem., 1974, 82, C-30; S. Teratake, Chem. Lett., 1974, 1123; R. H. Fish and B. M. Broline, J. Organomet. Chem., 1978, 159, 255; D. C. McWilliam, T. R. Balasubramanian and H. G. Kuivila, J. Am. Chem. Soc., 1978, 100, 6407; I. Fleming and C. J. Urch, J. Organomet. Chem., 1985, 285, 173; C. R. Johnson and J. F. Kadow, J. Org. Chem., 1987, 52, 1493; L. Plamondon and J. D. Wuest, J. Org. Chem., 1991, 56, 2066 and 2076; T. Sato, T. Kikuchi, H. Tsujita, A. Kaetsu, N. Sootome, K. Nishida and E. Murayama, Tetrahedron, 1991, 47, 3281; T. Sato and S. Nagatsuka, Synlett, 1995, 653; R. L. Beddoes, M. L. Lewis, P. Quayle, S. Johal, M. Atwood and D. Hurst, Tetrahedron Lett., 1995, 36, 471; S. Hanessian, U. Reinhold and S. Ninkovic, Tetrahedron Lett., 1996, 37, 8976; N. Isono and M. Mori, J. Org. Chem., 1997, 62, 7867; H. Wakamatsu, N. Isono and M. Mori, J. Org. Chem., 1997, 62, 8917; A. Krief and L. Provins, Tetrahedron Lett., 1998, 39, 2017. But for notable exceptions, see G. D. Hartman and T. G. Traylor, J. Am. Chem. Soc., 1975, 97, 6147; M. J. Goldstein and J. P. Barren Helv. Chim. Acta, 1986, 69, 548.
61. D. D. Davis and H. T. Johnson, J. Am. Chem. Soc., 1974, 96, 7576; D. D. Davis and R. H. Black, J. Organomet. Chem., 1974, 82, C-30; S. Teratake, Chem. Lett., 1974, 1123; R. H. Fish and B. M. Broline, J. Organomet. Chem., 1978, 159, 255; D. C. McWilliam, T. R. Balasubramanian and H. G. Kuivila, J. Am. Chem. Soc., 1978, 100, 6407; I. Fleming and C. J. Urch, J. Organomet. Chem., 1985, 285, 173; C. R. Johnson and J. F. Kadow, J. Org. Chem., 1987, 52, 1493; L. Plamondon and J. D. Wuest, J. Org. Chem., 1991, 56, 2066 and 2076; T. Sato, T. Kikuchi, H. Tsujita, A. Kaetsu, N. Sootome, K. Nishida and E. Murayama, Tetrahedron, 1991, 47, 3281; T. Sato and S. Nagatsuka, Synlett, 1995, 653; R. L. Beddoes, M. L. Lewis, P. Quayle, S. Johal, M. Atwood and D. Hurst, Tetrahedron Lett., 1995, 36, 471; S. Hanessian, U. Reinhold and S. Ninkovic, Tetrahedron Lett., 1996, 37, 8976; N. Isono and M. Mori, J. Org. Chem., 1997, 62, 7867; H. Wakamatsu, N. Isono and M. Mori, J. Org. Chem., 1997, 62, 8917; A. Krief and L. Provins, Tetrahedron Lett., 1998, 39, 2017. But for notable exceptions, see G. D. Hartman and T. G. Traylor, J. Am. Chem. Soc., 1975, 97, 6147; M. J. Goldstein and J. P. Barren Helv. Chim. Acta, 1986, 69, 548.
62. V. J. Shiner, Jr., M. W. Ensinger and R. D. Rutkowske, J. Am. Chem. Soc., 1987, 109, 804; W. Kirmse and F. Söllenböhmer, J. Am. Chem. Soc., 1989, 111, 4127; V. J. Shiner, Jr., M. W. Ensinger and J. C. Huffman, J. Am. Chem. Soc., 1989, 111, 7199; J. Coope and V. J. Shiner, Jr., J. Org. Chem., 1989, 54, 4270; V. J. Shiner, Jr., M. W. Ensinger, G. S. Kriz and K. A. Halley, J. Org. Chem., 1990, 55, 653.
63. V. J. Shiner, Jr., M. W. Ensinger and R. D. Rutkowske, J. Am. Chem. Soc., 1987, 109, 804; W. Kirmse and F. Söllenböhmer, J. Am. Chem. Soc., 1989, 111, 4127; V. J. Shiner, Jr., M. W. Ensinger and J. C. Huffman, J. Am. Chem. Soc., 1989, 111, 7199; J. Coope and V. J. Shiner, Jr., J. Org. Chem., 1989, 54, 4270; V. J. Shiner, Jr., M. W. Ensinger, G. S. Kriz and K. A. Halley, J. Org. Chem., 1990, 55, 653.
64. V. J. Shiner, Jr., M. W. Ensinger and R. D. Rutkowske, J. Am. Chem. Soc., 1987, 109, 804; W. Kirmse and F. Söllenböhmer, J. Am. Chem. Soc., 1989, 111, 4127; V. J. Shiner, Jr., M. W. Ensinger and J. C. Huffman, J. Am. Chem. Soc., 1989, 111, 7199; J. Coope and V. J. Shiner, Jr., J. Org. Chem., 1989, 54, 4270; V. J. Shiner, Jr., M. W. Ensinger, G. S. Kriz and K. A. Halley, J. Org. Chem., 1990, 55, 653.
65. V. J. Shiner, Jr., M. W. Ensinger and R. D. Rutkowske, J. Am. Chem. Soc., 1987, 109, 804; W. Kirmse and F. Söllenböhmer, J. Am. Chem. Soc., 1989, 111, 4127; V. J. Shiner, Jr., M. W. Ensinger and J. C. Huffman, J. Am. Chem. Soc., 1989, 111, 7199; J. Coope and V. J. Shiner, Jr., J. Org. Chem., 1989, 54, 4270; V. J. Shiner, Jr., M. W. Ensinger, G. S. Kriz and K. A. Halley, J. Org. Chem., 1990, 55, 653.
66. V. J. Shiner, Jr., M. W. Ensinger and R. D. Rutkowske, J. Am. Chem. Soc., 1987, 109, 804; W. Kirmse and F. Söllenböhmer, J. Am. Chem. Soc., 1989, 111, 4127; V. J. Shiner, Jr., M. W. Ensinger and J. C. Huffman, J. Am. Chem. Soc., 1989, 111, 7199; J. Coope and V. J. Shiner, Jr., J. Org. Chem., 1989, 54, 4270; V. J. Shiner, Jr., M. W. Ensinger, G. S. Kriz and K. A. Halley, J. Org. Chem., 1990, 55, 653.
67. I. Fleming and J. P. Michael, J. Chem. Soc., Perkin Trans. 1, 1981, 1549; J. P. Michael, N. F. Blom and J. C. A. Boeyens, J. Chem. Soc., Perkin Trans. 1, 1984, 1739; I. Fleming, S. K. Patel and C. J. Urch, J. Chem. Soc., Perkin Trans. 1, 1989, 115; S. R. Wilson and A. Shedrinsky, J. Org. Chem., 1982, 47, 1983; S. R. Wilson, A. Shedrinsky and M. S. Haque, Tetrahedron, 1983, 39, 895; W. R. Roush and T. E. D'Ambra, J. Am. Chem. Soc., 1983, 105, 1058; M. Hannaby and S. Warren, Tetrahedron Lett., 1986, 27, 765; M. Asaoka and H. Takei, Tetrahedron Lett., 1987, 28, 6343; K. Tanino, Y. Hatanaka and I. Kuwajima, Chem. Lett., 1987, 385; W. Kirmse and F. Söllenböhmer, Angew. Chem., Int. Ed. Engl., 1989, 28, 1667; J. Coope, V. J. Shiner, Jr., and M. W. Ensinger, J. Am. Chem. Soc., 1990, 112, 2834; J. R. Hwu and J. M. Wetzel, J. Org. Chem., 1992, 57, 922; A. Yamazaki, I. Achiwa, K. Horikawa, M. Tsurubo and K. Achiwa, Synlett, 1997, 455; E. J. Corey and B. E. Roberts, J. Am. Chem. Soc., 1997, 119, 12425; I. Achiwa, A. Yamazaki and K. Achiwa, Synlett, 1998, 45; A. Nowak, O. Bolte and E. Schaumann, Tetrahedron Lett., 1998, 39, 529.
68. I. Fleming and J. P. Michael, J. Chem. Soc., Perkin Trans. 1, 1981, 1549; J. P. Michael, N. F. Blom and J. C. A. Boeyens, J. Chem. Soc., Perkin Trans. 1, 1984, 1739; I. Fleming, S. K. Patel and C. J. Urch, J. Chem. Soc., Perkin Trans. 1, 1989, 115; S. R. Wilson and A. Shedrinsky, J. Org. Chem., 1982, 47, 1983; S. R. Wilson, A. Shedrinsky and M. S. Haque, Tetrahedron, 1983, 39, 895; W. R. Roush and T. E. D'Ambra, J. Am. Chem. Soc., 1983, 105, 1058; M. Hannaby and S. Warren, Tetrahedron Lett., 1986, 27, 765; M. Asaoka and H. Takei, Tetrahedron Lett., 1987, 28, 6343; K. Tanino, Y. Hatanaka and I. Kuwajima, Chem. Lett., 1987, 385; W. Kirmse and F. Söllenböhmer, Angew. Chem., Int. Ed. Engl., 1989, 28, 1667; J. Coope, V. J. Shiner, Jr., and M. W. Ensinger, J. Am. Chem. Soc., 1990, 112, 2834; J. R. Hwu and J. M. Wetzel, J. Org. Chem., 1992, 57, 922; A. Yamazaki, I. Achiwa, K. Horikawa, M. Tsurubo and K. Achiwa, Synlett, 1997, 455; E. J. Corey and B. E. Roberts, J. Am. Chem. Soc., 1997, 119, 12425; I. Achiwa, A. Yamazaki and K. Achiwa, Synlett, 1998, 45; A. Nowak, O. Bolte and E. Schaumann, Tetrahedron Lett., 1998, 39, 529.
69. I. Fleming and J. P. Michael, J. Chem. Soc., Perkin Trans. 1, 1981, 1549; J. P. Michael, N. F. Blom and J. C. A. Boeyens, J. Chem. Soc., Perkin Trans. 1, 1984, 1739; I. Fleming, S. K. Patel and C. J. Urch, J. Chem. Soc., Perkin Trans. 1, 1989, 115; S. R. Wilson and A. Shedrinsky, J. Org. Chem., 1982, 47, 1983; S. R. Wilson, A. Shedrinsky and M. S. Haque, Tetrahedron, 1983, 39, 895; W. R. Roush and T. E. D'Ambra, J. Am. Chem. Soc., 1983, 105, 1058; M. Hannaby and S. Warren, Tetrahedron Lett., 1986, 27, 765; M. Asaoka and H. Takei, Tetrahedron Lett., 1987, 28, 6343; K. Tanino, Y. Hatanaka and I. Kuwajima, Chem. Lett., 1987, 385; W. Kirmse and F. Söllenböhmer, Angew. Chem., Int. Ed. Engl., 1989, 28, 1667; J. Coope, V. J. Shiner, Jr., and M. W. Ensinger, J. Am. Chem. Soc., 1990, 112, 2834; J. R. Hwu and J. M. Wetzel, J. Org. Chem., 1992, 57, 922; A. Yamazaki, I. Achiwa, K. Horikawa, M. Tsurubo and K. Achiwa, Synlett, 1997, 455; E. J. Corey and B. E. Roberts, J. Am. Chem. Soc., 1997, 119, 12425; I. Achiwa, A. Yamazaki and K. Achiwa, Synlett, 1998, 45; A. Nowak, O. Bolte and E. Schaumann, Tetrahedron Lett., 1998, 39, 529.
70. I. Fleming and J. P. Michael, J. Chem. Soc., Perkin Trans. 1, 1981, 1549; J. P. Michael, N. F. Blom and J. C. A. Boeyens, J. Chem. Soc., Perkin Trans. 1, 1984, 1739; I. Fleming, S. K. Patel and C. J. Urch, J. Chem. Soc., Perkin Trans. 1, 1989, 115; S. R. Wilson and A. Shedrinsky, J. Org. Chem., 1982, 47, 1983; S. R. Wilson, A. Shedrinsky and M. S. Haque, Tetrahedron, 1983, 39, 895; W. R. Roush and T. E. D'Ambra, J. Am. Chem. Soc., 1983, 105, 1058; M. Hannaby and S. Warren, Tetrahedron Lett., 1986, 27, 765; M. Asaoka and H. Takei, Tetrahedron Lett., 1987, 28, 6343; K. Tanino, Y. Hatanaka and I. Kuwajima, Chem. Lett., 1987, 385; W. Kirmse and F. Söllenböhmer, Angew. Chem., Int. Ed. Engl., 1989, 28, 1667; J. Coope, V. J. Shiner, Jr., and M. W. Ensinger, J. Am. Chem. Soc., 1990, 112, 2834; J. R. Hwu and J. M. Wetzel, J. Org. Chem., 1992, 57, 922; A. Yamazaki, I. Achiwa, K. Horikawa, M. Tsurubo and K. Achiwa, Synlett, 1997, 455; E. J. Corey and B. E. Roberts, J. Am. Chem. Soc., 1997, 119, 12425; I. Achiwa, A. Yamazaki and K. Achiwa, Synlett, 1998, 45; A. Nowak, O. Bolte and E. Schaumann, Tetrahedron Lett., 1998, 39, 529.
71. I. Fleming and J. P. Michael, J. Chem. Soc., Perkin Trans. 1, 1981, 1549; J. P. Michael, N. F. Blom and J. C. A. Boeyens, J. Chem. Soc., Perkin Trans. 1, 1984, 1739; I. Fleming, S. K. Patel and C. J. Urch, J. Chem. Soc., Perkin Trans. 1, 1989, 115; S. R. Wilson and A. Shedrinsky, J. Org. Chem., 1982, 47, 1983; S. R. Wilson, A. Shedrinsky and M. S. Haque, Tetrahedron, 1983, 39, 895; W. R. Roush and T. E. D'Ambra, J. Am. Chem. Soc., 1983, 105, 1058; M. Hannaby and S. Warren, Tetrahedron Lett., 1986, 27, 765; M. Asaoka and H. Takei, Tetrahedron Lett., 1987, 28, 6343; K. Tanino, Y. Hatanaka and I. Kuwajima, Chem. Lett., 1987, 385; W. Kirmse and F. Söllenböhmer, Angew. Chem., Int. Ed. Engl., 1989, 28, 1667; J. Coope, V. J. Shiner, Jr., and M. W. Ensinger, J. Am. Chem. Soc., 1990, 112, 2834; J. R. Hwu and J. M. Wetzel, J. Org. Chem., 1992, 57, 922; A. Yamazaki, I. Achiwa, K. Horikawa, M. Tsurubo and K. Achiwa, Synlett, 1997, 455; E. J. Corey and B. E. Roberts, J. Am. Chem. Soc., 1997, 119, 12425; I. Achiwa, A. Yamazaki and K. Achiwa, Synlett, 1998, 45; A. Nowak, O. Bolte and E. Schaumann, Tetrahedron Lett., 1998, 39, 529.
72. I. Fleming and J. P. Michael, J. Chem. Soc., Perkin Trans. 1, 1981, 1549; J. P. Michael, N. F. Blom and J. C. A. Boeyens, J. Chem. Soc., Perkin Trans. 1, 1984, 1739; I. Fleming, S. K. Patel and C. J. Urch, J. Chem. Soc., Perkin Trans. 1, 1989, 115; S. R. Wilson and A. Shedrinsky, J. Org. Chem., 1982, 47, 1983; S. R. Wilson, A. Shedrinsky and M. S. Haque, Tetrahedron, 1983, 39, 895; W. R. Roush and T. E. D'Ambra, J. Am. Chem. Soc., 1983, 105, 1058; M. Hannaby and S. Warren, Tetrahedron Lett., 1986, 27, 765; M. Asaoka and H. Takei, Tetrahedron Lett., 1987, 28, 6343; K. Tanino, Y. Hatanaka and I. Kuwajima, Chem. Lett., 1987, 385; W. Kirmse and F. Söllenböhmer, Angew. Chem., Int. Ed. Engl., 1989, 28, 1667; J. Coope, V. J. Shiner, Jr., and M. W. Ensinger, J. Am. Chem. Soc., 1990, 112, 2834; J. R. Hwu and J. M. Wetzel, J. Org. Chem., 1992, 57, 922; A. Yamazaki, I. Achiwa, K. Horikawa, M. Tsurubo and K. Achiwa, Synlett, 1997, 455; E. J. Corey and B. E. Roberts, J. Am. Chem. Soc., 1997, 119, 12425; I. Achiwa, A. Yamazaki and K. Achiwa, Synlett, 1998, 45; A. Nowak, O. Bolte and E. Schaumann, Tetrahedron Lett., 1998, 39, 529.
73. I. Fleming and J. P. Michael, J. Chem. Soc., Perkin Trans. 1, 1981, 1549; J. P. Michael, N. F. Blom and J. C. A. Boeyens, J. Chem. Soc., Perkin Trans. 1, 1984, 1739; I. Fleming, S. K. Patel and C. J. Urch, J. Chem. Soc., Perkin Trans. 1, 1989, 115; S. R. Wilson and A. Shedrinsky, J. Org. Chem., 1982, 47, 1983; S. R. Wilson, A. Shedrinsky and M. S. Haque, Tetrahedron, 1983, 39, 895; W. R. Roush and T. E. D'Ambra, J. Am. Chem. Soc., 1983, 105, 1058; M. Hannaby and S. Warren, Tetrahedron Lett., 1986, 27, 765; M. Asaoka and H. Takei, Tetrahedron Lett., 1987, 28, 6343; K. Tanino, Y. Hatanaka and I. Kuwajima, Chem. Lett., 1987, 385; W. Kirmse and F. Söllenböhmer, Angew. Chem., Int. Ed. Engl., 1989, 28, 1667; J. Coope, V. J. Shiner, Jr., and M. W. Ensinger, J. Am. Chem. Soc., 1990, 112, 2834; J. R. Hwu and J. M. Wetzel, J. Org. Chem., 1992, 57, 922; A. Yamazaki, I. Achiwa, K. Horikawa, M. Tsurubo and K. Achiwa, Synlett, 1997, 455; E. J. Corey and B. E. Roberts, J. Am. Chem. Soc., 1997, 119, 12425; I. Achiwa, A. Yamazaki and K. Achiwa, Synlett, 1998, 45; A. Nowak, O. Bolte and E. Schaumann, Tetrahedron Lett., 1998, 39, 529.
74. I. Fleming and J. P. Michael, J. Chem. Soc., Perkin Trans. 1, 1981, 1549; J. P. Michael, N. F. Blom and J. C. A. Boeyens, J. Chem. Soc., Perkin Trans. 1, 1984, 1739; I. Fleming, S. K. Patel and C. J. Urch, J. Chem. Soc., Perkin Trans. 1, 1989, 115; S. R. Wilson and A. Shedrinsky, J. Org. Chem., 1982, 47, 1983; S. R. Wilson, A. Shedrinsky and M. S. Haque, Tetrahedron, 1983, 39, 895; W. R. Roush and T. E. D'Ambra, J. Am. Chem. Soc., 1983, 105, 1058; M. Hannaby and S. Warren, Tetrahedron Lett., 1986, 27, 765; M. Asaoka and H. Takei, Tetrahedron Lett., 1987, 28, 6343; K. Tanino, Y. Hatanaka and I. Kuwajima, Chem. Lett., 1987, 385; W. Kirmse and F. Söllenböhmer, Angew. Chem., Int. Ed. Engl., 1989, 28, 1667; J. Coope, V. J. Shiner, Jr., and M. W. Ensinger, J. Am. Chem. Soc., 1990, 112, 2834; J. R. Hwu and J. M. Wetzel, J. Org. Chem., 1992, 57, 922; A. Yamazaki, I. Achiwa, K. Horikawa, M. Tsurubo and K. Achiwa, Synlett, 1997, 455; E. J. Corey and B. E. Roberts, J. Am. Chem. Soc., 1997, 119, 12425; I. Achiwa, A. Yamazaki and K. Achiwa, Synlett, 1998, 45; A. Nowak, O. Bolte and E. Schaumann, Tetrahedron Lett., 1998, 39, 529.
75. I. Fleming and J. P. Michael, J. Chem. Soc., Perkin Trans. 1, 1981, 1549; J. P. Michael, N. F. Blom and J. C. A. Boeyens, J. Chem. Soc., Perkin Trans. 1, 1984, 1739; I. Fleming, S. K. Patel and C. J. Urch, J. Chem. Soc., Perkin Trans. 1, 1989, 115; S. R. Wilson and A. Shedrinsky, J. Org. Chem., 1982, 47, 1983; S. R. Wilson, A. Shedrinsky and M. S. Haque, Tetrahedron, 1983, 39, 895; W. R. Roush and T. E. D'Ambra, J. Am. Chem. Soc., 1983, 105, 1058; M. Hannaby and S. Warren, Tetrahedron Lett., 1986, 27, 765; M. Asaoka and H. Takei, Tetrahedron Lett., 1987, 28, 6343; K. Tanino, Y. Hatanaka and I. Kuwajima, Chem. Lett., 1987, 385; W. Kirmse and F. Söllenböhmer, Angew. Chem., Int. Ed. Engl., 1989, 28, 1667; J. Coope, V. J. Shiner, Jr., and M. W. Ensinger, J. Am. Chem. Soc., 1990, 112, 2834; J. R. Hwu and J. M. Wetzel, J. Org. Chem., 1992, 57, 922; A. Yamazaki, I. Achiwa, K. Horikawa, M. Tsurubo and K. Achiwa, Synlett, 1997, 455; E. J. Corey and B. E. Roberts, J. Am. Chem. Soc., 1997, 119, 12425; I. Achiwa, A. Yamazaki and K. Achiwa, Synlett, 1998, 45; A. Nowak, O. Bolte and E. Schaumann, Tetrahedron Lett., 1998, 39, 529.
76. I. Fleming and J. P. Michael, J. Chem. Soc., Perkin Trans. 1, 1981, 1549; J. P. Michael, N. F. Blom and J. C. A. Boeyens, J. Chem. Soc., Perkin Trans. 1, 1984, 1739; I. Fleming, S. K. Patel and C. J. Urch, J. Chem. Soc., Perkin Trans. 1, 1989, 115; S. R. Wilson and A. Shedrinsky, J. Org. Chem., 1982, 47, 1983; S. R. Wilson, A. Shedrinsky and M. S. Haque, Tetrahedron, 1983, 39, 895; W. R. Roush and T. E. D'Ambra, J. Am. Chem. Soc., 1983, 105, 1058; M. Hannaby and S. Warren, Tetrahedron Lett., 1986, 27, 765; M. Asaoka and H. Takei, Tetrahedron Lett., 1987, 28, 6343; K. Tanino, Y. Hatanaka and I. Kuwajima, Chem. Lett., 1987, 385; W. Kirmse and F. Söllenböhmer, Angew. Chem., Int. Ed. Engl., 1989, 28, 1667; J. Coope, V. J. Shiner, Jr., and M. W. Ensinger, J. Am. Chem. Soc., 1990, 112, 2834; J. R. Hwu and J. M. Wetzel, J. Org. Chem., 1992, 57, 922; A. Yamazaki, I. Achiwa, K. Horikawa, M. Tsurubo and K. Achiwa, Synlett, 1997, 455; E. J. Corey and B. E. Roberts, J. Am. Chem. Soc., 1997, 119, 12425; I. Achiwa, A. Yamazaki and K. Achiwa, Synlett, 1998, 45; A. Nowak, O. Bolte and E. Schaumann, Tetrahedron Lett., 1998, 39, 529.
77. I. Fleming and J. P. Michael, J. Chem. Soc., Perkin Trans. 1, 1981, 1549; J. P. Michael, N. F. Blom and J. C. A. Boeyens, J. Chem. Soc., Perkin Trans. 1, 1984, 1739; I. Fleming, S. K. Patel and C. J. Urch, J. Chem. Soc., Perkin Trans. 1, 1989, 115; S. R. Wilson and A. Shedrinsky, J. Org. Chem., 1982, 47, 1983; S. R. Wilson, A. Shedrinsky and M. S. Haque, Tetrahedron, 1983, 39, 895; W. R. Roush and T. E. D'Ambra, J. Am. Chem. Soc., 1983, 105, 1058; M. Hannaby and S. Warren, Tetrahedron Lett., 1986, 27, 765; M. Asaoka and H. Takei, Tetrahedron Lett., 1987, 28, 6343; K. Tanino, Y. Hatanaka and I. Kuwajima, Chem. Lett., 1987, 385; W. Kirmse and F. Söllenböhmer, Angew. Chem., Int. Ed. Engl., 1989, 28, 1667; J. Coope, V. J. Shiner, Jr., and M. W. Ensinger, J. Am. Chem. Soc., 1990, 112, 2834; J. R. Hwu and J. M. Wetzel, J. Org. Chem., 1992, 57, 922; A. Yamazaki, I. Achiwa, K. Horikawa, M. Tsurubo and K. Achiwa, Synlett, 1997, 455; E. J. Corey and B. E. Roberts, J. Am. Chem. Soc., 1997, 119, 12425; I. Achiwa, A. Yamazaki and K. Achiwa, Synlett, 1998, 45; A. Nowak, O. Bolte and E. Schaumann, Tetrahedron Lett., 1998, 39, 529.
78. I. Fleming and J. P. Michael, J. Chem. Soc., Perkin Trans. 1, 1981, 1549; J. P. Michael, N. F. Blom and J. C. A. Boeyens, J. Chem. Soc., Perkin Trans. 1, 1984, 1739; I. Fleming, S. K. Patel and C. J. Urch, J. Chem. Soc., Perkin Trans. 1, 1989, 115; S. R. Wilson and A. Shedrinsky, J. Org. Chem., 1982, 47, 1983; S. R. Wilson, A. Shedrinsky and M. S. Haque, Tetrahedron, 1983, 39, 895; W. R. Roush and T. E. D'Ambra, J. Am. Chem. Soc., 1983, 105, 1058; M. Hannaby and S. Warren, Tetrahedron Lett., 1986, 27, 765; M. Asaoka and H. Takei, Tetrahedron Lett., 1987, 28, 6343; K. Tanino, Y. Hatanaka and I. Kuwajima, Chem. Lett., 1987, 385; W. Kirmse and F. Söllenböhmer, Angew. Chem., Int. Ed. Engl., 1989, 28, 1667; J. Coope, V. J. Shiner, Jr., and M. W. Ensinger, J. Am. Chem. Soc., 1990, 112, 2834; J. R. Hwu and J. M. Wetzel, J. Org. Chem., 1992, 57, 922; A. Yamazaki, I. Achiwa, K. Horikawa, M. Tsurubo and K. Achiwa, Synlett, 1997, 455; E. J. Corey and B. E. Roberts, J. Am. Chem. Soc., 1997, 119, 12425; I. Achiwa, A. Yamazaki and K. Achiwa, Synlett, 1998, 45; A. Nowak, O. Bolte and E. Schaumann, Tetrahedron Lett., 1998, 39, 529.
79. I. Fleming and J. P. Michael, J. Chem. Soc., Perkin Trans. 1, 1981, 1549; J. P. Michael, N. F. Blom and J. C. A. Boeyens, J. Chem. Soc., Perkin Trans. 1, 1984, 1739; I. Fleming, S. K. Patel and C. J. Urch, J. Chem. Soc., Perkin Trans. 1, 1989, 115; S. R. Wilson and A. Shedrinsky, J. Org. Chem., 1982, 47, 1983; S. R. Wilson, A. Shedrinsky and M. S. Haque, Tetrahedron, 1983, 39, 895; W. R. Roush and T. E. D'Ambra, J. Am. Chem. Soc., 1983, 105, 1058; M. Hannaby and S. Warren, Tetrahedron Lett., 1986, 27, 765; M. Asaoka and H. Takei, Tetrahedron Lett., 1987, 28, 6343; K. Tanino, Y. Hatanaka and I. Kuwajima, Chem. Lett., 1987, 385; W. Kirmse and F. Söllenböhmer, Angew. Chem., Int. Ed. Engl., 1989, 28, 1667; J. Coope, V. J. Shiner, Jr., and M. W. Ensinger, J. Am. Chem. Soc., 1990, 112, 2834; J. R. Hwu and J. M. Wetzel, J. Org. Chem., 1992, 57, 922; A. Yamazaki, I. Achiwa, K. Horikawa, M. Tsurubo and K. Achiwa, Synlett, 1997, 455; E. J. Corey and B. E. Roberts, J. Am. Chem. Soc., 1997, 119, 12425; I. Achiwa, A. Yamazaki and K. Achiwa, Synlett, 1998, 45; A. Nowak, O. Bolte and E. Schaumann, Tetrahedron Lett., 1998, 39, 529.
80. I. Fleming and J. P. Michael, J. Chem. Soc., Perkin Trans. 1, 1981, 1549; J. P. Michael, N. F. Blom and J. C. A. Boeyens, J. Chem. Soc., Perkin Trans. 1, 1984, 1739; I. Fleming, S. K. Patel and C. J. Urch, J. Chem. Soc., Perkin Trans. 1, 1989, 115; S. R. Wilson and A. Shedrinsky, J. Org. Chem., 1982, 47, 1983; S. R. Wilson, A. Shedrinsky and M. S. Haque, Tetrahedron, 1983, 39, 895; W. R. Roush and T. E. D'Ambra, J. Am. Chem. Soc., 1983, 105, 1058; M. Hannaby and S. Warren, Tetrahedron Lett., 1986, 27, 765; M. Asaoka and H. Takei, Tetrahedron Lett., 1987, 28, 6343; K. Tanino, Y. Hatanaka and I. Kuwajima, Chem. Lett., 1987, 385; W. Kirmse and F. Söllenböhmer, Angew. Chem., Int. Ed. Engl., 1989, 28, 1667; J. Coope, V. J. Shiner, Jr., and M. W. Ensinger, J. Am. Chem. Soc., 1990, 112, 2834; J. R. Hwu and J. M. Wetzel, J. Org. Chem., 1992, 57, 922; A. Yamazaki, I. Achiwa, K. Horikawa, M. Tsurubo and K. Achiwa, Synlett, 1997, 455; E. J. Corey and B. E. Roberts, J. Am. Chem. Soc., 1997, 119, 12425; I. Achiwa, A. Yamazaki and K. Achiwa, Synlett, 1998, 45; A. Nowak, O. Bolte and E. Schaumann, Tetrahedron Lett., 1998, 39, 529.
81. I. Fleming and J. P. Michael, J. Chem. Soc., Perkin Trans. 1, 1981, 1549; J. P. Michael, N. F. Blom and J. C. A. Boeyens, J. Chem. Soc., Perkin Trans. 1, 1984, 1739; I. Fleming, S. K. Patel and C. J. Urch, J. Chem. Soc., Perkin Trans. 1, 1989, 115; S. R. Wilson and A. Shedrinsky, J. Org. Chem., 1982, 47, 1983; S. R. Wilson, A. Shedrinsky and M. S. Haque, Tetrahedron, 1983, 39, 895; W. R. Roush and T. E. D'Ambra, J. Am. Chem. Soc., 1983, 105, 1058; M. Hannaby and S. Warren, Tetrahedron Lett., 1986, 27, 765; M. Asaoka and H. Takei, Tetrahedron Lett., 1987, 28, 6343; K. Tanino, Y. Hatanaka and I. Kuwajima, Chem. Lett., 1987, 385; W. Kirmse and F. Söllenböhmer, Angew. Chem., Int. Ed. Engl., 1989, 28, 1667; J. Coope, V. J. Shiner, Jr., and M. W. Ensinger, J. Am. Chem. Soc., 1990, 112, 2834; J. R. Hwu and J. M. Wetzel, J. Org. Chem., 1992, 57, 922; A. Yamazaki, I. Achiwa, K. Horikawa, M. Tsurubo and K. Achiwa, Synlett, 1997, 455; E. J. Corey and B. E. Roberts, J. Am. Chem. Soc., 1997, 119, 12425; I. Achiwa, A. Yamazaki and K. Achiwa, Synlett, 1998, 45; A. Nowak, O. Bolte and E. Schaumann, Tetrahedron Lett., 1998, 39, 529.
82. I. Fleming and J. P. Michael, J. Chem. Soc., Perkin Trans. 1, 1981, 1549; J. P. Michael, N. F. Blom and J. C. A. Boeyens, J. Chem. Soc., Perkin Trans. 1, 1984, 1739; I. Fleming, S. K. Patel and C. J. Urch, J. Chem. Soc., Perkin Trans. 1, 1989, 115; S. R. Wilson and A. Shedrinsky, J. Org. Chem., 1982, 47, 1983; S. R. Wilson, A. Shedrinsky and M. S. Haque, Tetrahedron, 1983, 39, 895; W. R.
83. I. Fleming, N. L. Reddy, K. Takaki and A. C. Ware, J. Chem. Soc., Chem. Commun., 1987, 1472.