Efficient generation of trifluoroacetaldehyde and successive reaction with imines affording β-hydroxy-β-trifluoromethyl ketones

Synlett

Volumn , Issue 9, 1999, Pages 1477-1479

  Funabiki, Kazumasa ^a   Matsunaga, Kei ^a   Matsui, Masaki ^a   Shibata, Katsuyoshi ^a  

^a GIFU UNIVERSITY   (Japan)

Author keywords

Hemiacetal; Hydrate; Imine; Trifluoroacetaldehyde; hydroxy trifluoromethyl ketones

Indexed keywords

ALDEHYDE DERIVATIVE; FLUORINE DERIVATIVE; KETONE DERIVATIVE;

ARTICLE; REACTION ANALYSIS; SYNTHESIS; TEMPERATURE;

EID: 0032844214     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-1999-2870     Document Type: Article

References (35)

1. For the reaction with boron enolates, see: Iseki, K.; Oishi, S.; Kobayashi, Y. Chem. Pharm. Bull. 1996, 44, 2003. Iseki, K.; Oishi S.; Kobayashi, Y. Tetrahedron 1996, 52, 71. Makino, Y.; Iseki, K.; Fujii, K.; Oishi, S.; Hirano T.; Kobayashi, Y. Tetrahedron Lett. 1995, 36, 6527. Iseki, K.; Oishi S.; Kobayashi, Y. Chem. Lett. 1994, 1135. For with a lithium enolate, see: Patel, D. V.; Rielly-Gauvin, K.; Ryono, D. E. Tetrahedron Lett. 1988, 29, 4665. For with ketene silyl acetal, see: Mikami, K.; Yajima, T.; Takasaki, T.; Matsukawa, S.; Terada, M.; Uchimaru, T.; Maruta, M. Tetrahedron 1996, 52, 85. Mikami, K.; Takasaki, T.; Matsukawa, S.; Maruta, M. Synlett 1995, 1057. For with a lithium reagent, see: Yamazaki, T.; Takita K.; Ishikawa, N. J. Fluorine Chem. 1985, 30, 357. For asymmetric Friedel-Crafts reaction, see: Ishii, A.; Mikami, K. The International Conference on Fluorine Chemistry '99 Tokyo, Yokohama, May, 1999, Abstr. No. P50. For ene reaction, see: Pautrat, R.; Marteau J.; Cheritat, R. Bull. Soc. Chim. Fr. 1968, 1182. Ogawa, K.; Nagai, T.; Nonomura, M.; Takagi, T.; Koyama, M.; Ando, A.; Miki, T.; Kumadaki, I. Chem. Pharm. Bull. 1991, 39, 1707. For asymmetric ene reaction, see: Mikami, K.; Yajima, T.; Siree, N.; Terada, M.; Suzuki, Y.; Kobayashi, I. Synlett 1996, 837. Mikami, K.; Yajima, T.; Terada, M.; Kato, E.; Maruta, M. Tetrahedron: Asymmetry 1994, 5, 1087. Mikami, K.; Yajima, T.; Terada, M.; Uchimaru, T. Tetrahedron Lett. 1993, 34, 7591. For Hetero Diels-Alder reaction, see: Lévêque, L.; Blanc, M. L.; Pastor, R. Tetrahedron Lett. 1997, 38, 6001. For asymmetric Hetero Diels-Alder reaction, see: Mikami, K.; Takasaki, T.; Yajima, T.; Matsukawa, S.; Terada, M. 72nd National Meeting of the Chemical Society of Japan, Tokyo, March, 1997, Abstr. No. 4H332.
2. For the reaction with boron enolates, see: Iseki, K.; Oishi, S.; Kobayashi, Y. Chem. Pharm. Bull. 1996, 44, 2003. Iseki, K.; Oishi S.; Kobayashi, Y. Tetrahedron 1996, 52, 71. Makino, Y.; Iseki, K.; Fujii, K.; Oishi, S.; Hirano T.; Kobayashi, Y. Tetrahedron Lett. 1995, 36, 6527. Iseki, K.; Oishi S.; Kobayashi, Y. Chem. Lett. 1994, 1135. For with a lithium enolate, see: Patel, D. V.; Rielly-Gauvin, K.; Ryono, D. E. Tetrahedron Lett. 1988, 29, 4665. For with ketene silyl acetal, see: Mikami, K.; Yajima, T.; Takasaki, T.; Matsukawa, S.; Terada, M.; Uchimaru, T.; Maruta, M. Tetrahedron 1996, 52, 85. Mikami, K.; Takasaki, T.; Matsukawa, S.; Maruta, M. Synlett 1995, 1057. For with a lithium reagent, see: Yamazaki, T.; Takita K.; Ishikawa, N. J. Fluorine Chem. 1985, 30, 357. For asymmetric Friedel-Crafts reaction, see: Ishii, A.; Mikami, K. The International Conference on Fluorine Chemistry '99 Tokyo, Yokohama, May, 1999, Abstr. No. P50. For ene reaction, see: Pautrat, R.; Marteau J.; Cheritat, R. Bull. Soc. Chim. Fr. 1968, 1182. Ogawa, K.; Nagai, T.; Nonomura, M.; Takagi, T.; Koyama, M.; Ando, A.; Miki, T.; Kumadaki, I. Chem. Pharm. Bull. 1991, 39, 1707. For asymmetric ene reaction, see: Mikami, K.; Yajima, T.; Siree, N.; Terada, M.; Suzuki, Y.; Kobayashi, I. Synlett 1996, 837. Mikami, K.; Yajima, T.; Terada, M.; Kato, E.; Maruta, M. Tetrahedron: Asymmetry 1994, 5, 1087. Mikami, K.; Yajima, T.; Terada, M.; Uchimaru, T. Tetrahedron Lett. 1993, 34, 7591. For Hetero Diels-Alder reaction, see: Lévêque, L.; Blanc, M. L.; Pastor, R. Tetrahedron Lett. 1997, 38, 6001. For asymmetric Hetero Diels-Alder reaction, see: Mikami, K.; Takasaki, T.; Yajima, T.; Matsukawa, S.; Terada, M. 72nd National Meeting of the Chemical Society of Japan, Tokyo, March, 1997, Abstr. No. 4H332.
3. For the reaction with boron enolates, see: Iseki, K.; Oishi, S.; Kobayashi, Y. Chem. Pharm. Bull. 1996, 44, 2003. Iseki, K.; Oishi S.; Kobayashi, Y. Tetrahedron 1996, 52, 71. Makino, Y.; Iseki, K.; Fujii, K.; Oishi, S.; Hirano T.; Kobayashi, Y. Tetrahedron Lett. 1995, 36, 6527. Iseki, K.; Oishi S.; Kobayashi, Y. Chem. Lett. 1994, 1135. For with a lithium enolate, see: Patel, D. V.; Rielly-Gauvin, K.; Ryono, D. E. Tetrahedron Lett. 1988, 29, 4665. For with ketene silyl acetal, see: Mikami, K.; Yajima, T.; Takasaki, T.; Matsukawa, S.; Terada, M.; Uchimaru, T.; Maruta, M. Tetrahedron 1996, 52, 85. Mikami, K.; Takasaki, T.; Matsukawa, S.; Maruta, M. Synlett 1995, 1057. For with a lithium reagent, see: Yamazaki, T.; Takita K.; Ishikawa, N. J. Fluorine Chem. 1985, 30, 357. For asymmetric Friedel-Crafts reaction, see: Ishii, A.; Mikami, K. The International Conference on Fluorine Chemistry '99 Tokyo, Yokohama, May, 1999, Abstr. No. P50. For ene reaction, see: Pautrat, R.; Marteau J.; Cheritat, R. Bull. Soc. Chim. Fr. 1968, 1182. Ogawa, K.; Nagai, T.; Nonomura, M.; Takagi, T.; Koyama, M.; Ando, A.; Miki, T.; Kumadaki, I. Chem. Pharm. Bull. 1991, 39, 1707. For asymmetric ene reaction, see: Mikami, K.; Yajima, T.; Siree, N.; Terada, M.; Suzuki, Y.; Kobayashi, I. Synlett 1996, 837. Mikami, K.; Yajima, T.; Terada, M.; Kato, E.; Maruta, M. Tetrahedron: Asymmetry 1994, 5, 1087. Mikami, K.; Yajima, T.; Terada, M.; Uchimaru, T. Tetrahedron Lett. 1993, 34, 7591. For Hetero Diels-Alder reaction, see: Lévêque, L.; Blanc, M. L.; Pastor, R. Tetrahedron Lett. 1997, 38, 6001. For asymmetric Hetero Diels-Alder reaction, see: Mikami, K.; Takasaki, T.; Yajima, T.; Matsukawa, S.; Terada, M. 72nd National Meeting of the Chemical Society of Japan, Tokyo, March, 1997, Abstr. No. 4H332.
4. For the reaction with boron enolates, see: Iseki, K.; Oishi, S.; Kobayashi, Y. Chem. Pharm. Bull. 1996, 44, 2003. Iseki, K.; Oishi S.; Kobayashi, Y. Tetrahedron 1996, 52, 71. Makino, Y.; Iseki, K.; Fujii, K.; Oishi, S.; Hirano T.; Kobayashi, Y. Tetrahedron Lett. 1995, 36, 6527. Iseki, K.; Oishi S.; Kobayashi, Y. Chem. Lett. 1994, 1135. For with a lithium enolate, see: Patel, D. V.; Rielly-Gauvin, K.; Ryono, D. E. Tetrahedron Lett. 1988, 29, 4665. For with ketene silyl acetal, see: Mikami, K.; Yajima, T.; Takasaki, T.; Matsukawa, S.; Terada, M.; Uchimaru, T.; Maruta, M. Tetrahedron 1996, 52, 85. Mikami, K.; Takasaki, T.; Matsukawa, S.; Maruta, M. Synlett 1995, 1057. For with a lithium reagent, see: Yamazaki, T.; Takita K.; Ishikawa, N. J. Fluorine Chem. 1985, 30, 357. For asymmetric Friedel-Crafts reaction, see: Ishii, A.; Mikami, K. The International Conference on Fluorine Chemistry '99 Tokyo, Yokohama, May, 1999, Abstr. No. P50. For ene reaction, see: Pautrat, R.; Marteau J.; Cheritat, R. Bull. Soc. Chim. Fr. 1968, 1182. Ogawa, K.; Nagai, T.; Nonomura, M.; Takagi, T.; Koyama, M.; Ando, A.; Miki, T.; Kumadaki, I. Chem. Pharm. Bull. 1991, 39, 1707. For asymmetric ene reaction, see: Mikami, K.; Yajima, T.; Siree, N.; Terada, M.; Suzuki, Y.; Kobayashi, I. Synlett 1996, 837. Mikami, K.; Yajima, T.; Terada, M.; Kato, E.; Maruta, M. Tetrahedron: Asymmetry 1994, 5, 1087. Mikami, K.; Yajima, T.; Terada, M.; Uchimaru, T. Tetrahedron Lett. 1993, 34, 7591. For Hetero Diels-Alder reaction, see: Lévêque, L.; Blanc, M. L.; Pastor, R. Tetrahedron Lett. 1997, 38, 6001. For asymmetric Hetero Diels-Alder reaction, see: Mikami, K.; Takasaki, T.; Yajima, T.; Matsukawa, S.; Terada, M. 72nd National Meeting of the Chemical Society of Japan, Tokyo, March, 1997, Abstr. No. 4H332.
5. For the reaction with boron enolates, see: Iseki, K.; Oishi, S.; Kobayashi, Y. Chem. Pharm. Bull. 1996, 44, 2003. Iseki, K.; Oishi S.; Kobayashi, Y. Tetrahedron 1996, 52, 71. Makino, Y.; Iseki, K.; Fujii, K.; Oishi, S.; Hirano T.; Kobayashi, Y. Tetrahedron Lett. 1995, 36, 6527. Iseki, K.; Oishi S.; Kobayashi, Y. Chem. Lett. 1994, 1135. For with a lithium enolate, see: Patel, D. V.; Rielly-Gauvin, K.; Ryono, D. E. Tetrahedron Lett. 1988, 29, 4665. For with ketene silyl acetal, see: Mikami, K.; Yajima, T.; Takasaki, T.; Matsukawa, S.; Terada, M.; Uchimaru, T.; Maruta, M. Tetrahedron 1996, 52, 85. Mikami, K.; Takasaki, T.; Matsukawa, S.; Maruta, M. Synlett 1995, 1057. For with a lithium reagent, see: Yamazaki, T.; Takita K.; Ishikawa, N. J. Fluorine Chem. 1985, 30, 357. For asymmetric Friedel-Crafts reaction, see: Ishii, A.; Mikami, K. The International Conference on Fluorine Chemistry '99 Tokyo, Yokohama, May, 1999, Abstr. No. P50. For ene reaction, see: Pautrat, R.; Marteau J.; Cheritat, R. Bull. Soc. Chim. Fr. 1968, 1182. Ogawa, K.; Nagai, T.; Nonomura, M.; Takagi, T.; Koyama, M.; Ando, A.; Miki, T.; Kumadaki, I. Chem. Pharm. Bull. 1991, 39, 1707. For asymmetric ene reaction, see: Mikami, K.; Yajima, T.; Siree, N.; Terada, M.; Suzuki, Y.; Kobayashi, I. Synlett 1996, 837. Mikami, K.; Yajima, T.; Terada, M.; Kato, E.; Maruta, M. Tetrahedron: Asymmetry 1994, 5, 1087. Mikami, K.; Yajima, T.; Terada, M.; Uchimaru, T. Tetrahedron Lett. 1993, 34, 7591. For Hetero Diels-Alder reaction, see: Lévêque, L.; Blanc, M. L.; Pastor, R. Tetrahedron Lett. 1997, 38, 6001. For asymmetric Hetero Diels-Alder reaction, see: Mikami, K.; Takasaki, T.; Yajima, T.; Matsukawa, S.; Terada, M. 72nd National Meeting of the Chemical Society of Japan, Tokyo, March, 1997, Abstr. No. 4H332.
6. For the reaction with boron enolates, see: Iseki, K.; Oishi, S.; Kobayashi, Y. Chem. Pharm. Bull. 1996, 44, 2003. Iseki, K.; Oishi S.; Kobayashi, Y. Tetrahedron 1996, 52, 71. Makino, Y.; Iseki, K.; Fujii, K.; Oishi, S.; Hirano T.; Kobayashi, Y. Tetrahedron Lett. 1995, 36, 6527. Iseki, K.; Oishi S.; Kobayashi, Y. Chem. Lett. 1994, 1135. For with a lithium enolate, see: Patel, D. V.; Rielly-Gauvin, K.; Ryono, D. E. Tetrahedron Lett. 1988, 29, 4665. For with ketene silyl acetal, see: Mikami, K.; Yajima, T.; Takasaki, T.; Matsukawa, S.; Terada, M.; Uchimaru, T.; Maruta, M. Tetrahedron 1996, 52, 85. Mikami, K.; Takasaki, T.; Matsukawa, S.; Maruta, M. Synlett 1995, 1057. For with a lithium reagent, see: Yamazaki, T.; Takita K.; Ishikawa, N. J. Fluorine Chem. 1985, 30, 357. For asymmetric Friedel-Crafts reaction, see: Ishii, A.; Mikami, K. The International Conference on Fluorine Chemistry '99 Tokyo, Yokohama, May, 1999, Abstr. No. P50. For ene reaction, see: Pautrat, R.; Marteau J.; Cheritat, R. Bull. Soc. Chim. Fr. 1968, 1182. Ogawa, K.; Nagai, T.; Nonomura, M.; Takagi, T.; Koyama, M.; Ando, A.; Miki, T.; Kumadaki, I. Chem. Pharm. Bull. 1991, 39, 1707. For asymmetric ene reaction, see: Mikami, K.; Yajima, T.; Siree, N.; Terada, M.; Suzuki, Y.; Kobayashi, I. Synlett 1996, 837. Mikami, K.; Yajima, T.; Terada, M.; Kato, E.; Maruta, M. Tetrahedron: Asymmetry 1994, 5, 1087. Mikami, K.; Yajima, T.; Terada, M.; Uchimaru, T. Tetrahedron Lett. 1993, 34, 7591. For Hetero Diels-Alder reaction, see: Lévêque, L.; Blanc, M. L.; Pastor, R. Tetrahedron Lett. 1997, 38, 6001. For asymmetric Hetero Diels-Alder reaction, see: Mikami, K.; Takasaki, T.; Yajima, T.; Matsukawa, S.; Terada, M. 72nd National Meeting of the Chemical Society of Japan, Tokyo, March, 1997, Abstr. No. 4H332.
7. For the reaction with boron enolates, see: Iseki, K.; Oishi, S.; Kobayashi, Y. Chem. Pharm. Bull. 1996, 44, 2003. Iseki, K.; Oishi S.; Kobayashi, Y. Tetrahedron 1996, 52, 71. Makino, Y.; Iseki, K.; Fujii, K.; Oishi, S.; Hirano T.; Kobayashi, Y. Tetrahedron Lett. 1995, 36, 6527. Iseki, K.; Oishi S.; Kobayashi, Y. Chem. Lett. 1994, 1135. For with a lithium enolate, see: Patel, D. V.; Rielly-Gauvin, K.; Ryono, D. E. Tetrahedron Lett. 1988, 29, 4665. For with ketene silyl acetal, see: Mikami, K.; Yajima, T.; Takasaki, T.; Matsukawa, S.; Terada, M.; Uchimaru, T.; Maruta, M. Tetrahedron 1996, 52, 85. Mikami, K.; Takasaki, T.; Matsukawa, S.; Maruta, M. Synlett 1995, 1057. For with a lithium reagent, see: Yamazaki, T.; Takita K.; Ishikawa, N. J. Fluorine Chem. 1985, 30, 357. For asymmetric Friedel-Crafts reaction, see: Ishii, A.; Mikami, K. The International Conference on Fluorine Chemistry '99 Tokyo, Yokohama, May, 1999, Abstr. No. P50. For ene reaction, see: Pautrat, R.; Marteau J.; Cheritat, R. Bull. Soc. Chim. Fr. 1968, 1182. Ogawa, K.; Nagai, T.; Nonomura, M.; Takagi, T.; Koyama, M.; Ando, A.; Miki, T.; Kumadaki, I. Chem. Pharm. Bull. 1991, 39, 1707. For asymmetric ene reaction, see: Mikami, K.; Yajima, T.; Siree, N.; Terada, M.; Suzuki, Y.; Kobayashi, I. Synlett 1996, 837. Mikami, K.; Yajima, T.; Terada, M.; Kato, E.; Maruta, M. Tetrahedron: Asymmetry 1994, 5, 1087. Mikami, K.; Yajima, T.; Terada, M.; Uchimaru, T. Tetrahedron Lett. 1993, 34, 7591. For Hetero Diels-Alder reaction, see: Lévêque, L.; Blanc, M. L.; Pastor, R. Tetrahedron Lett. 1997, 38, 6001. For asymmetric Hetero Diels-Alder reaction, see: Mikami, K.; Takasaki, T.; Yajima, T.; Matsukawa, S.; Terada, M. 72nd National Meeting of the Chemical Society of Japan, Tokyo, March, 1997, Abstr. No. 4H332.
8. For the reaction with boron enolates, see: Iseki, K.; Oishi, S.; Kobayashi, Y. Chem. Pharm. Bull. 1996, 44, 2003. Iseki, K.; Oishi S.; Kobayashi, Y. Tetrahedron 1996, 52, 71. Makino, Y.; Iseki, K.; Fujii, K.; Oishi, S.; Hirano T.; Kobayashi, Y. Tetrahedron Lett. 1995, 36, 6527. Iseki, K.; Oishi S.; Kobayashi, Y. Chem. Lett. 1994, 1135. For with a lithium enolate, see: Patel, D. V.; Rielly-Gauvin, K.; Ryono, D. E. Tetrahedron Lett. 1988, 29, 4665. For with ketene silyl acetal, see: Mikami, K.; Yajima, T.; Takasaki, T.; Matsukawa, S.; Terada, M.; Uchimaru, T.; Maruta, M. Tetrahedron 1996, 52, 85. Mikami, K.; Takasaki, T.; Matsukawa, S.; Maruta, M. Synlett 1995, 1057. For with a lithium reagent, see: Yamazaki, T.; Takita K.; Ishikawa, N. J. Fluorine Chem. 1985, 30, 357. For asymmetric Friedel-Crafts reaction, see: Ishii, A.; Mikami, K. The International Conference on Fluorine Chemistry '99 Tokyo, Yokohama, May, 1999, Abstr. No. P50. For ene reaction, see: Pautrat, R.; Marteau J.; Cheritat, R. Bull. Soc. Chim. Fr. 1968, 1182. Ogawa, K.; Nagai, T.; Nonomura, M.; Takagi, T.; Koyama, M.; Ando, A.; Miki, T.; Kumadaki, I. Chem. Pharm. Bull. 1991, 39, 1707. For asymmetric ene reaction, see: Mikami, K.; Yajima, T.; Siree, N.; Terada, M.; Suzuki, Y.; Kobayashi, I. Synlett 1996, 837. Mikami, K.; Yajima, T.; Terada, M.; Kato, E.; Maruta, M. Tetrahedron: Asymmetry 1994, 5, 1087. Mikami, K.; Yajima, T.; Terada, M.; Uchimaru, T. Tetrahedron Lett. 1993, 34, 7591. For Hetero Diels-Alder reaction, see: Lévêque, L.; Blanc, M. L.; Pastor, R. Tetrahedron Lett. 1997, 38, 6001. For asymmetric Hetero Diels-Alder reaction, see: Mikami, K.; Takasaki, T.; Yajima, T.; Matsukawa, S.; Terada, M. 72nd National Meeting of the Chemical Society of Japan, Tokyo, March, 1997, Abstr. No. 4H332.
9. For the reaction with boron enolates, see: Iseki, K.; Oishi, S.; Kobayashi, Y. Chem. Pharm. Bull. 1996, 44, 2003. Iseki, K.; Oishi S.; Kobayashi, Y. Tetrahedron 1996, 52, 71. Makino, Y.; Iseki, K.; Fujii, K.; Oishi, S.; Hirano T.; Kobayashi, Y. Tetrahedron Lett. 1995, 36, 6527. Iseki, K.; Oishi S.; Kobayashi, Y. Chem. Lett. 1994, 1135. For with a lithium enolate, see: Patel, D. V.; Rielly-Gauvin, K.; Ryono, D. E. Tetrahedron Lett. 1988, 29, 4665. For with ketene silyl acetal, see: Mikami, K.; Yajima, T.; Takasaki, T.; Matsukawa, S.; Terada, M.; Uchimaru, T.; Maruta, M. Tetrahedron 1996, 52, 85. Mikami, K.; Takasaki, T.; Matsukawa, S.; Maruta, M. Synlett 1995, 1057. For with a lithium reagent, see: Yamazaki, T.; Takita K.; Ishikawa, N. J. Fluorine Chem. 1985, 30, 357. For asymmetric Friedel-Crafts reaction, see: Ishii, A.; Mikami, K. The International Conference on Fluorine Chemistry '99 Tokyo, Yokohama, May, 1999, Abstr. No. P50. For ene reaction, see: Pautrat, R.; Marteau J.; Cheritat, R. Bull. Soc. Chim. Fr. 1968, 1182. Ogawa, K.; Nagai, T.; Nonomura, M.; Takagi, T.; Koyama, M.; Ando, A.; Miki, T.; Kumadaki, I. Chem. Pharm. Bull. 1991, 39, 1707. For asymmetric ene reaction, see: Mikami, K.; Yajima, T.; Siree, N.; Terada, M.; Suzuki, Y.; Kobayashi, I. Synlett 1996, 837. Mikami, K.; Yajima, T.; Terada, M.; Kato, E.; Maruta, M. Tetrahedron: Asymmetry 1994, 5, 1087. Mikami, K.; Yajima, T.; Terada, M.; Uchimaru, T. Tetrahedron Lett. 1993, 34, 7591. For Hetero Diels-Alder reaction, see: Lévêque, L.; Blanc, M. L.; Pastor, R. Tetrahedron Lett. 1997, 38, 6001. For asymmetric Hetero Diels-Alder reaction, see: Mikami, K.; Takasaki, T.; Yajima, T.; Matsukawa, S.; Terada, M. 72nd National Meeting of the Chemical Society of Japan, Tokyo, March, 1997, Abstr. No. 4H332.
10. For the reaction with boron enolates, see: Iseki, K.; Oishi, S.; Kobayashi, Y. Chem. Pharm. Bull. 1996, 44, 2003. Iseki, K.; Oishi S.; Kobayashi, Y. Tetrahedron 1996, 52, 71. Makino, Y.; Iseki, K.; Fujii, K.; Oishi, S.; Hirano T.; Kobayashi, Y. Tetrahedron Lett. 1995, 36, 6527. Iseki, K.; Oishi S.; Kobayashi, Y. Chem. Lett. 1994, 1135. For with a lithium enolate, see: Patel, D. V.; Rielly-Gauvin, K.; Ryono, D. E. Tetrahedron Lett. 1988, 29, 4665. For with ketene silyl acetal, see: Mikami, K.; Yajima, T.; Takasaki, T.; Matsukawa, S.; Terada, M.; Uchimaru, T.; Maruta, M. Tetrahedron 1996, 52, 85. Mikami, K.; Takasaki, T.; Matsukawa, S.; Maruta, M. Synlett 1995, 1057. For with a lithium reagent, see: Yamazaki, T.; Takita K.; Ishikawa, N. J. Fluorine Chem. 1985, 30, 357. For asymmetric Friedel-Crafts reaction, see: Ishii, A.; Mikami, K. The International Conference on Fluorine Chemistry '99 Tokyo, Yokohama, May, 1999, Abstr. No. P50. For ene reaction, see: Pautrat, R.; Marteau J.; Cheritat, R. Bull. Soc. Chim. Fr. 1968, 1182. Ogawa, K.; Nagai, T.; Nonomura, M.; Takagi, T.; Koyama, M.; Ando, A.; Miki, T.; Kumadaki, I. Chem. Pharm. Bull. 1991, 39, 1707. For asymmetric ene reaction, see: Mikami, K.; Yajima, T.; Siree, N.; Terada, M.; Suzuki, Y.; Kobayashi, I. Synlett 1996, 837. Mikami, K.; Yajima, T.; Terada, M.; Kato, E.; Maruta, M. Tetrahedron: Asymmetry 1994, 5, 1087. Mikami, K.; Yajima, T.; Terada, M.; Uchimaru, T. Tetrahedron Lett. 1993, 34, 7591. For Hetero Diels-Alder reaction, see: Lévêque, L.; Blanc, M. L.; Pastor, R. Tetrahedron Lett. 1997, 38, 6001. For asymmetric Hetero Diels-Alder reaction, see: Mikami, K.; Takasaki, T.; Yajima, T.; Matsukawa, S.; Terada, M. 72nd National Meeting of the Chemical Society of Japan, Tokyo, March, 1997, Abstr. No. 4H332.
11. For the reaction with boron enolates, see: Iseki, K.; Oishi, S.; Kobayashi, Y. Chem. Pharm. Bull. 1996, 44, 2003. Iseki, K.; Oishi S.; Kobayashi, Y. Tetrahedron 1996, 52, 71. Makino, Y.; Iseki, K.; Fujii, K.; Oishi, S.; Hirano T.; Kobayashi, Y. Tetrahedron Lett. 1995, 36, 6527. Iseki, K.; Oishi S.; Kobayashi, Y. Chem. Lett. 1994, 1135. For with a lithium enolate, see: Patel, D. V.; Rielly-Gauvin, K.; Ryono, D. E. Tetrahedron Lett. 1988, 29, 4665. For with ketene silyl acetal, see: Mikami, K.; Yajima, T.; Takasaki, T.; Matsukawa, S.; Terada, M.; Uchimaru, T.; Maruta, M. Tetrahedron 1996, 52, 85. Mikami, K.; Takasaki, T.; Matsukawa, S.; Maruta, M. Synlett 1995, 1057. For with a lithium reagent, see: Yamazaki, T.; Takita K.; Ishikawa, N. J. Fluorine Chem. 1985, 30, 357. For asymmetric Friedel-Crafts reaction, see: Ishii, A.; Mikami, K. The International Conference on Fluorine Chemistry '99 Tokyo, Yokohama, May, 1999, Abstr. No. P50. For ene reaction, see: Pautrat, R.; Marteau J.; Cheritat, R. Bull. Soc. Chim. Fr. 1968, 1182. Ogawa, K.; Nagai, T.; Nonomura, M.; Takagi, T.; Koyama, M.; Ando, A.; Miki, T.; Kumadaki, I. Chem. Pharm. Bull. 1991, 39, 1707. For asymmetric ene reaction, see: Mikami, K.; Yajima, T.; Siree, N.; Terada, M.; Suzuki, Y.; Kobayashi, I. Synlett 1996, 837. Mikami, K.; Yajima, T.; Terada, M.; Kato, E.; Maruta, M. Tetrahedron: Asymmetry 1994, 5, 1087. Mikami, K.; Yajima, T.; Terada, M.; Uchimaru, T. Tetrahedron Lett. 1993, 34, 7591. For Hetero Diels-Alder reaction, see: Lévêque, L.; Blanc, M. L.; Pastor, R. Tetrahedron Lett. 1997, 38, 6001. For asymmetric Hetero Diels-Alder reaction, see: Mikami, K.; Takasaki, T.; Yajima, T.; Matsukawa, S.; Terada, M. 72nd National Meeting of the Chemical Society of Japan, Tokyo, March, 1997, Abstr. No. 4H332.
12. For the reaction with boron enolates, see: Iseki, K.; Oishi, S.; Kobayashi, Y. Chem. Pharm. Bull. 1996, 44, 2003. Iseki, K.; Oishi S.; Kobayashi, Y. Tetrahedron 1996, 52, 71. Makino, Y.; Iseki, K.; Fujii, K.; Oishi, S.; Hirano T.; Kobayashi, Y. Tetrahedron Lett. 1995, 36, 6527. Iseki, K.; Oishi S.; Kobayashi, Y. Chem. Lett. 1994, 1135. For with a lithium enolate, see: Patel, D. V.; Rielly-Gauvin, K.; Ryono, D. E. Tetrahedron Lett. 1988, 29, 4665. For with ketene silyl acetal, see: Mikami, K.; Yajima, T.; Takasaki, T.; Matsukawa, S.; Terada, M.; Uchimaru, T.; Maruta, M. Tetrahedron 1996, 52, 85. Mikami, K.; Takasaki, T.; Matsukawa, S.; Maruta, M. Synlett 1995, 1057. For with a lithium reagent, see: Yamazaki, T.; Takita K.; Ishikawa, N. J. Fluorine Chem. 1985, 30, 357. For asymmetric Friedel-Crafts reaction, see: Ishii, A.; Mikami, K. The International Conference on Fluorine Chemistry '99 Tokyo, Yokohama, May, 1999, Abstr. No. P50. For ene reaction, see: Pautrat, R.; Marteau J.; Cheritat, R. Bull. Soc. Chim. Fr. 1968, 1182. Ogawa, K.; Nagai, T.; Nonomura, M.; Takagi, T.; Koyama, M.; Ando, A.; Miki, T.; Kumadaki, I. Chem. Pharm. Bull. 1991, 39, 1707. For asymmetric ene reaction, see: Mikami, K.; Yajima, T.; Siree, N.; Terada, M.; Suzuki, Y.; Kobayashi, I. Synlett 1996, 837. Mikami, K.; Yajima, T.; Terada, M.; Kato, E.; Maruta, M. Tetrahedron: Asymmetry 1994, 5, 1087. Mikami, K.; Yajima, T.; Terada, M.; Uchimaru, T. Tetrahedron Lett. 1993, 34, 7591. For Hetero Diels-Alder reaction, see: Lévêque, L.; Blanc, M. L.; Pastor, R. Tetrahedron Lett. 1997, 38, 6001. For asymmetric Hetero Diels-Alder reaction, see: Mikami, K.; Takasaki, T.; Yajima, T.; Matsukawa, S.; Terada, M. 72nd National Meeting of the Chemical Society of Japan, Tokyo, March, 1997, Abstr. No. 4H332.
13. For the reaction with boron enolates, see: Iseki, K.; Oishi, S.; Kobayashi, Y. Chem. Pharm. Bull. 1996, 44, 2003. Iseki, K.; Oishi S.; Kobayashi, Y. Tetrahedron 1996, 52, 71. Makino, Y.; Iseki, K.; Fujii, K.; Oishi, S.; Hirano T.; Kobayashi, Y. Tetrahedron Lett. 1995, 36, 6527. Iseki, K.; Oishi S.; Kobayashi, Y. Chem. Lett. 1994, 1135. For with a lithium enolate, see: Patel, D. V.; Rielly-Gauvin, K.; Ryono, D. E. Tetrahedron Lett. 1988, 29, 4665. For with ketene silyl acetal, see: Mikami, K.; Yajima, T.; Takasaki, T.; Matsukawa, S.; Terada, M.; Uchimaru, T.; Maruta, M. Tetrahedron 1996, 52, 85. Mikami, K.; Takasaki, T.; Matsukawa, S.; Maruta, M. Synlett 1995, 1057. For with a lithium reagent, see: Yamazaki, T.; Takita K.; Ishikawa, N. J. Fluorine Chem. 1985, 30, 357. For asymmetric Friedel-Crafts reaction, see: Ishii, A.; Mikami, K. The International Conference on Fluorine Chemistry '99 Tokyo, Yokohama, May, 1999, Abstr. No. P50. For ene reaction, see: Pautrat, R.; Marteau J.; Cheritat, R. Bull. Soc. Chim. Fr. 1968, 1182. Ogawa, K.; Nagai, T.; Nonomura, M.; Takagi, T.; Koyama, M.; Ando, A.; Miki, T.; Kumadaki, I. Chem. Pharm. Bull. 1991, 39, 1707. For asymmetric ene reaction, see: Mikami, K.; Yajima, T.; Siree, N.; Terada, M.; Suzuki, Y.; Kobayashi, I. Synlett 1996, 837. Mikami, K.; Yajima, T.; Terada, M.; Kato, E.; Maruta, M. Tetrahedron: Asymmetry 1994, 5, 1087. Mikami, K.; Yajima, T.; Terada, M.; Uchimaru, T. Tetrahedron Lett. 1993, 34, 7591. For Hetero Diels-Alder reaction, see: Lévêque, L.; Blanc, M. L.; Pastor, R. Tetrahedron Lett. 1997, 38, 6001. For asymmetric Hetero Diels-Alder reaction, see: Mikami, K.; Takasaki, T.; Yajima, T.; Matsukawa, S.; Terada, M. 72nd National Meeting of the Chemical Society of Japan, Tokyo, March, 1997, Abstr. No. 4H332.
14. For the reaction with boron enolates, see: Iseki, K.; Oishi, S.; Kobayashi, Y. Chem. Pharm. Bull. 1996, 44, 2003. Iseki, K.; Oishi S.; Kobayashi, Y. Tetrahedron 1996, 52, 71. Makino, Y.; Iseki, K.; Fujii, K.; Oishi, S.; Hirano T.; Kobayashi, Y. Tetrahedron Lett. 1995, 36, 6527. Iseki, K.; Oishi S.; Kobayashi, Y. Chem. Lett. 1994, 1135. For with a lithium enolate, see: Patel, D. V.; Rielly-Gauvin, K.; Ryono, D. E. Tetrahedron Lett. 1988, 29, 4665. For with ketene silyl acetal, see: Mikami, K.; Yajima, T.; Takasaki, T.; Matsukawa, S.; Terada, M.; Uchimaru, T.; Maruta, M. Tetrahedron 1996, 52, 85. Mikami, K.; Takasaki, T.; Matsukawa, S.; Maruta, M. Synlett 1995, 1057. For with a lithium reagent, see: Yamazaki, T.; Takita K.; Ishikawa, N. J. Fluorine Chem. 1985, 30, 357. For asymmetric Friedel-Crafts reaction, see: Ishii, A.; Mikami, K. The International Conference on Fluorine Chemistry '99 Tokyo, Yokohama, May, 1999, Abstr. No. P50. For ene reaction, see: Pautrat, R.; Marteau J.; Cheritat, R. Bull. Soc. Chim. Fr. 1968, 1182. Ogawa, K.; Nagai, T.; Nonomura, M.; Takagi, T.; Koyama, M.; Ando, A.; Miki, T.; Kumadaki, I. Chem. Pharm. Bull. 1991, 39, 1707. For asymmetric ene reaction, see: Mikami, K.; Yajima, T.; Siree, N.; Terada, M.; Suzuki, Y.; Kobayashi, I. Synlett 1996, 837. Mikami, K.; Yajima, T.; Terada, M.; Kato, E.; Maruta, M. Tetrahedron: Asymmetry 1994, 5, 1087. Mikami, K.; Yajima, T.; Terada, M.; Uchimaru, T. Tetrahedron Lett. 1993, 34, 7591. For Hetero Diels-Alder reaction, see: Lévêque, L.; Blanc, M. L.; Pastor, R. Tetrahedron Lett. 1997, 38, 6001. For asymmetric Hetero Diels-Alder reaction, see: Mikami, K.; Takasaki, T.; Yajima, T.; Matsukawa, S.; Terada, M. 72nd National Meeting of the Chemical Society of Japan, Tokyo, March, 1997, Abstr. No. 4H332.
15. For the reaction with boron enolates, see: Iseki, K.; Oishi, S.; Kobayashi, Y. Chem. Pharm. Bull. 1996, 44, 2003. Iseki, K.; Oishi S.; Kobayashi, Y. Tetrahedron 1996, 52, 71. Makino, Y.; Iseki, K.; Fujii, K.; Oishi, S.; Hirano T.; Kobayashi, Y. Tetrahedron Lett. 1995, 36, 6527. Iseki, K.; Oishi S.; Kobayashi, Y. Chem. Lett. 1994, 1135. For with a lithium enolate, see: Patel, D. V.; Rielly-Gauvin, K.; Ryono, D. E. Tetrahedron Lett. 1988, 29, 4665. For with ketene silyl acetal, see: Mikami, K.; Yajima, T.; Takasaki, T.; Matsukawa, S.; Terada, M.; Uchimaru, T.; Maruta, M. Tetrahedron 1996, 52, 85. Mikami, K.; Takasaki, T.; Matsukawa, S.; Maruta, M. Synlett 1995, 1057. For with a lithium reagent, see: Yamazaki, T.; Takita K.; Ishikawa, N. J. Fluorine Chem. 1985, 30, 357. For asymmetric Friedel-Crafts reaction, see: Ishii, A.; Mikami, K. The International Conference on Fluorine Chemistry '99 Tokyo, Yokohama, May, 1999, Abstr. No. P50. For ene reaction, see: Pautrat, R.; Marteau J.; Cheritat, R. Bull. Soc. Chim. Fr. 1968, 1182. Ogawa, K.; Nagai, T.; Nonomura, M.; Takagi, T.; Koyama, M.; Ando, A.; Miki, T.; Kumadaki, I. Chem. Pharm. Bull. 1991, 39, 1707. For asymmetric ene reaction, see: Mikami, K.; Yajima, T.; Siree, N.; Terada, M.; Suzuki, Y.; Kobayashi, I. Synlett 1996, 837. Mikami, K.; Yajima, T.; Terada, M.; Kato, E.; Maruta, M. Tetrahedron: Asymmetry 1994, 5, 1087. Mikami, K.; Yajima, T.; Terada, M.; Uchimaru, T. Tetrahedron Lett. 1993, 34, 7591. For Hetero Diels-Alder reaction, see: Lévêque, L.; Blanc, M. L.; Pastor, R. Tetrahedron Lett. 1997, 38, 6001. For asymmetric Hetero Diels-Alder reaction, see: Mikami, K.; Takasaki, T.; Yajima, T.; Matsukawa, S.; Terada, M. 72nd National Meeting of the Chemical Society of Japan, Tokyo, March, 1997, Abstr. No. 4H332.
16. For the reaction with boron enolates, see: Iseki, K.; Oishi, S.; Kobayashi, Y. Chem. Pharm. Bull. 1996, 44, 2003. Iseki, K.; Oishi S.; Kobayashi, Y. Tetrahedron 1996, 52, 71. Makino, Y.; Iseki, K.; Fujii, K.; Oishi, S.; Hirano T.; Kobayashi, Y. Tetrahedron Lett. 1995, 36, 6527. Iseki, K.; Oishi S.; Kobayashi, Y. Chem. Lett. 1994, 1135. For with a lithium enolate, see: Patel, D. V.; Rielly-Gauvin, K.; Ryono, D. E. Tetrahedron Lett. 1988, 29, 4665. For with ketene silyl acetal, see: Mikami, K.; Yajima, T.; Takasaki, T.; Matsukawa, S.; Terada, M.; Uchimaru, T.; Maruta, M. Tetrahedron 1996, 52, 85. Mikami, K.; Takasaki, T.; Matsukawa, S.; Maruta, M. Synlett 1995, 1057. For with a lithium reagent, see: Yamazaki, T.; Takita K.; Ishikawa, N. J. Fluorine Chem. 1985, 30, 357. For asymmetric Friedel-Crafts reaction, see: Ishii, A.; Mikami, K. The International Conference on Fluorine Chemistry '99 Tokyo, Yokohama, May, 1999, Abstr. No. P50. For ene reaction, see: Pautrat, R.; Marteau J.; Cheritat, R. Bull. Soc. Chim. Fr. 1968, 1182. Ogawa, K.; Nagai, T.; Nonomura, M.; Takagi, T.; Koyama, M.; Ando, A.; Miki, T.; Kumadaki, I. Chem. Pharm. Bull. 1991, 39, 1707. For asymmetric ene reaction, see: Mikami, K.; Yajima, T.; Siree, N.; Terada, M.; Suzuki, Y.; Kobayashi, I. Synlett 1996, 837. Mikami, K.; Yajima, T.; Terada, M.; Kato, E.; Maruta, M. Tetrahedron: Asymmetry 1994, 5, 1087. Mikami, K.; Yajima, T.; Terada, M.; Uchimaru, T. Tetrahedron Lett. 1993, 34, 7591. For Hetero Diels-Alder reaction, see: Lévêque, L.; Blanc, M. L.; Pastor, R. Tetrahedron Lett. 1997, 38, 6001. For asymmetric Hetero Diels-Alder reaction, see: Mikami, K.; Takasaki, T.; Yajima, T.; Matsukawa, S.; Terada, M. 72nd National Meeting of the Chemical Society of Japan, Tokyo, March, 1997, Abstr. No. 4H332.
17. For recent examples dealing with the preparation and the reaction of trifluoroacetaldehyde equivalents, see: Matsutani, H.; Poras, H.; Kusumoto, T.; Hiyama, T. Chem. Commun. 1998, 1259. Matsutani, H.; Poras, H.; Kusumoto, T.; Hiyama, T. Synlett, 1998, 1353. Poras, H.; Matsutani, H.; Yaruva, J.; Kusumoto, T.; Hiyama, T. Chem. Lett. 1998, 665. Xu, Y.; Dolbier, Jr., W. R. Tetrahedron Lett. 1998, 39, 9151. Folléas, B.; Marek, I.; Normant, J. F.; Jalmes, L. S. Tetrahedron Lett. 1998, 39, 2973. Russell, J.; Roques, N. Tetrahedron 1998, 54, 13771. Wiedemann, J.; Heiner, T.; Mloston, G.; Prakash, G. K. S.; Olah, G. A. Angew. Chem., Int. Ed. Engl. 1998, 37, 820. Ishii, A.; Miyamoto, F.; Higashiyama, K.; Mikami, K. Tetrahedron Lett. 1998, 39, 1199. Ishii, A.; Miyamoto, F.; Higashiyama, K.; Mikami, K. Chem. Lett. 1998, 119. Ishii, A.; Higashiyama, K.; Mikami, K. Synlett 1997, 1381. Loh, T. -P.; Li, X. -R. Chem. Commun. 1996, 1929.
18. For recent examples dealing with the preparation and the reaction of trifluoroacetaldehyde equivalents, see: Matsutani, H.; Poras, H.; Kusumoto, T.; Hiyama, T. Chem. Commun. 1998, 1259. Matsutani, H.; Poras, H.; Kusumoto, T.; Hiyama, T. Synlett, 1998, 1353. Poras, H.; Matsutani, H.; Yaruva, J.; Kusumoto, T.; Hiyama, T. Chem. Lett. 1998, 665. Xu, Y.; Dolbier, Jr., W. R. Tetrahedron Lett. 1998, 39, 9151. Folléas, B.; Marek, I.; Normant, J. F.; Jalmes, L. S. Tetrahedron Lett. 1998, 39, 2973. Russell, J.; Roques, N. Tetrahedron 1998, 54, 13771. Wiedemann, J.; Heiner, T.; Mloston, G.; Prakash, G. K. S.; Olah, G. A. Angew. Chem., Int. Ed. Engl. 1998, 37, 820. Ishii, A.; Miyamoto, F.; Higashiyama, K.; Mikami, K. Tetrahedron Lett. 1998, 39, 1199. Ishii, A.; Miyamoto, F.; Higashiyama, K.; Mikami, K. Chem. Lett. 1998, 119. Ishii, A.; Higashiyama, K.; Mikami, K. Synlett 1997, 1381. Loh, T. -P.; Li, X. -R. Chem. Commun. 1996, 1929.
19. For recent examples dealing with the preparation and the reaction of trifluoroacetaldehyde equivalents, see: Matsutani, H.; Poras, H.; Kusumoto, T.; Hiyama, T. Chem. Commun. 1998, 1259. Matsutani, H.; Poras, H.; Kusumoto, T.; Hiyama, T. Synlett, 1998, 1353. Poras, H.; Matsutani, H.; Yaruva, J.; Kusumoto, T.; Hiyama, T. Chem. Lett. 1998, 665. Xu, Y.; Dolbier, Jr., W. R. Tetrahedron Lett. 1998, 39, 9151. Folléas, B.; Marek, I.; Normant, J. F.; Jalmes, L. S. Tetrahedron Lett. 1998, 39, 2973. Russell, J.; Roques, N. Tetrahedron 1998, 54, 13771. Wiedemann, J.; Heiner, T.; Mloston, G.; Prakash, G. K. S.; Olah, G. A. Angew. Chem., Int. Ed. Engl. 1998, 37, 820. Ishii, A.; Miyamoto, F.; Higashiyama, K.; Mikami, K. Tetrahedron Lett. 1998, 39, 1199. Ishii, A.; Miyamoto, F.; Higashiyama, K.; Mikami, K. Chem. Lett. 1998, 119. Ishii, A.; Higashiyama, K.; Mikami, K. Synlett 1997, 1381. Loh, T. -P.; Li, X. -R. Chem. Commun. 1996, 1929.
20. For recent examples dealing with the preparation and the reaction of trifluoroacetaldehyde equivalents, see: Matsutani, H.; Poras, H.; Kusumoto, T.; Hiyama, T. Chem. Commun. 1998, 1259. Matsutani, H.; Poras, H.; Kusumoto, T.; Hiyama, T. Synlett, 1998, 1353. Poras, H.; Matsutani, H.; Yaruva, J.; Kusumoto, T.; Hiyama, T. Chem. Lett. 1998, 665. Xu, Y.; Dolbier, Jr., W. R. Tetrahedron Lett. 1998, 39, 9151. Folléas, B.; Marek, I.; Normant, J. F.; Jalmes, L. S. Tetrahedron Lett. 1998, 39, 2973. Russell, J.; Roques, N. Tetrahedron 1998, 54, 13771. Wiedemann, J.; Heiner, T.; Mloston, G.; Prakash, G. K. S.; Olah, G. A. Angew. Chem., Int. Ed. Engl. 1998, 37, 820. Ishii, A.; Miyamoto, F.; Higashiyama, K.; Mikami, K. Tetrahedron Lett. 1998, 39, 1199. Ishii, A.; Miyamoto, F.; Higashiyama, K.; Mikami, K. Chem. Lett. 1998, 119. Ishii, A.; Higashiyama, K.; Mikami, K. Synlett 1997, 1381. Loh, T. -P.; Li, X. -R. Chem. Commun. 1996, 1929.
21. For recent examples dealing with the preparation and the reaction of trifluoroacetaldehyde equivalents, see: Matsutani, H.; Poras, H.; Kusumoto, T.; Hiyama, T. Chem. Commun. 1998, 1259. Matsutani, H.; Poras, H.; Kusumoto, T.; Hiyama, T. Synlett, 1998, 1353. Poras, H.; Matsutani, H.; Yaruva, J.; Kusumoto, T.; Hiyama, T. Chem. Lett. 1998, 665. Xu, Y.; Dolbier, Jr., W. R. Tetrahedron Lett. 1998, 39, 9151. Folléas, B.; Marek, I.; Normant, J. F.; Jalmes, L. S. Tetrahedron Lett. 1998, 39, 2973. Russell, J.; Roques, N. Tetrahedron 1998, 54, 13771. Wiedemann, J.; Heiner, T.; Mloston, G.; Prakash, G. K. S.; Olah, G. A. Angew. Chem., Int. Ed. Engl. 1998, 37, 820. Ishii, A.; Miyamoto, F.; Higashiyama, K.; Mikami, K. Tetrahedron Lett. 1998, 39, 1199. Ishii, A.; Miyamoto, F.; Higashiyama, K.; Mikami, K. Chem. Lett. 1998, 119. Ishii, A.; Higashiyama, K.; Mikami, K. Synlett 1997, 1381. Loh, T. -P.; Li, X. -R. Chem. Commun. 1996, 1929.
22. For recent examples dealing with the preparation and the reaction of trifluoroacetaldehyde equivalents, see: Matsutani, H.; Poras, H.; Kusumoto, T.; Hiyama, T. Chem. Commun. 1998, 1259. Matsutani, H.; Poras, H.; Kusumoto, T.; Hiyama, T. Synlett, 1998, 1353. Poras, H.; Matsutani, H.; Yaruva, J.; Kusumoto, T.; Hiyama, T. Chem. Lett. 1998, 665. Xu, Y.; Dolbier, Jr., W. R. Tetrahedron Lett. 1998, 39, 9151. Folléas, B.; Marek, I.; Normant, J. F.; Jalmes, L. S. Tetrahedron Lett. 1998, 39, 2973. Russell, J.; Roques, N. Tetrahedron 1998, 54, 13771. Wiedemann, J.; Heiner, T.; Mloston, G.; Prakash, G. K. S.; Olah, G. A. Angew. Chem., Int. Ed. Engl. 1998, 37, 820. Ishii, A.; Miyamoto, F.; Higashiyama, K.; Mikami, K. Tetrahedron Lett. 1998, 39, 1199. Ishii, A.; Miyamoto, F.; Higashiyama, K.; Mikami, K. Chem. Lett. 1998, 119. Ishii, A.; Higashiyama, K.; Mikami, K. Synlett 1997, 1381. Loh, T. -P.; Li, X. -R. Chem. Commun. 1996, 1929.
23. For recent examples dealing with the preparation and the reaction of trifluoroacetaldehyde equivalents, see: Matsutani, H.; Poras, H.; Kusumoto, T.; Hiyama, T. Chem. Commun. 1998, 1259. Matsutani, H.; Poras, H.; Kusumoto, T.; Hiyama, T. Synlett, 1998, 1353. Poras, H.; Matsutani, H.; Yaruva, J.; Kusumoto, T.; Hiyama, T. Chem. Lett. 1998, 665. Xu, Y.; Dolbier, Jr., W. R. Tetrahedron Lett. 1998, 39, 9151. Folléas, B.; Marek, I.; Normant, J. F.; Jalmes, L. S. Tetrahedron Lett. 1998, 39, 2973. Russell, J.; Roques, N. Tetrahedron 1998, 54, 13771. Wiedemann, J.; Heiner, T.; Mloston, G.; Prakash, G. K. S.; Olah, G. A. Angew. Chem., Int. Ed. Engl. 1998, 37, 820. Ishii, A.; Miyamoto, F.; Higashiyama, K.; Mikami, K. Tetrahedron Lett. 1998, 39, 1199. Ishii, A.; Miyamoto, F.; Higashiyama, K.; Mikami, K. Chem. Lett. 1998, 119. Ishii, A.; Higashiyama, K.; Mikami, K. Synlett 1997, 1381. Loh, T. -P.; Li, X. -R. Chem. Commun. 1996, 1929.
24. For recent examples dealing with the preparation and the reaction of trifluoroacetaldehyde equivalents, see: Matsutani, H.; Poras, H.; Kusumoto, T.; Hiyama, T. Chem. Commun. 1998, 1259. Matsutani, H.; Poras, H.; Kusumoto, T.; Hiyama, T. Synlett, 1998, 1353. Poras, H.; Matsutani, H.; Yaruva, J.; Kusumoto, T.; Hiyama, T. Chem. Lett. 1998, 665. Xu, Y.; Dolbier, Jr., W. R. Tetrahedron Lett. 1998, 39, 9151. Folléas, B.; Marek, I.; Normant, J. F.; Jalmes, L. S. Tetrahedron Lett. 1998, 39, 2973. Russell, J.; Roques, N. Tetrahedron 1998, 54, 13771. Wiedemann, J.; Heiner, T.; Mloston, G.; Prakash, G. K. S.; Olah, G. A. Angew. Chem., Int. Ed. Engl. 1998, 37, 820. Ishii, A.; Miyamoto, F.; Higashiyama, K.; Mikami, K. Tetrahedron Lett. 1998, 39, 1199. Ishii, A.; Miyamoto, F.; Higashiyama, K.; Mikami, K. Chem. Lett. 1998, 119. Ishii, A.; Higashiyama, K.; Mikami, K. Synlett 1997, 1381. Loh, T. -P.; Li, X. -R. Chem. Commun. 1996, 1929.
25. For recent examples dealing with the preparation and the reaction of trifluoroacetaldehyde equivalents, see: Matsutani, H.; Poras, H.; Kusumoto, T.; Hiyama, T. Chem. Commun. 1998, 1259. Matsutani, H.; Poras, H.; Kusumoto, T.; Hiyama, T. Synlett, 1998, 1353. Poras, H.; Matsutani, H.; Yaruva, J.; Kusumoto, T.; Hiyama, T. Chem. Lett. 1998, 665. Xu, Y.; Dolbier, Jr., W. R. Tetrahedron Lett. 1998, 39, 9151. Folléas, B.; Marek, I.; Normant, J. F.; Jalmes, L. S. Tetrahedron Lett. 1998, 39, 2973. Russell, J.; Roques, N. Tetrahedron 1998, 54, 13771. Wiedemann, J.; Heiner, T.; Mloston, G.; Prakash, G. K. S.; Olah, G. A. Angew. Chem., Int. Ed. Engl. 1998, 37, 820. Ishii, A.; Miyamoto, F.; Higashiyama, K.; Mikami, K. Tetrahedron Lett. 1998, 39, 1199. Ishii, A.; Miyamoto, F.; Higashiyama, K.; Mikami, K. Chem. Lett. 1998, 119. Ishii, A.; Higashiyama, K.; Mikami, K. Synlett 1997, 1381. Loh, T. -P.; Li, X. -R. Chem. Commun. 1996, 1929.
26. For recent examples dealing with the preparation and the reaction of trifluoroacetaldehyde equivalents, see: Matsutani, H.; Poras, H.; Kusumoto, T.; Hiyama, T. Chem. Commun. 1998, 1259. Matsutani, H.; Poras, H.; Kusumoto, T.; Hiyama, T. Synlett, 1998, 1353. Poras, H.; Matsutani, H.; Yaruva, J.; Kusumoto, T.; Hiyama, T. Chem. Lett. 1998, 665. Xu, Y.; Dolbier, Jr., W. R. Tetrahedron Lett. 1998, 39, 9151. Folléas, B.; Marek, I.; Normant, J. F.; Jalmes, L. S. Tetrahedron Lett. 1998, 39, 2973. Russell, J.; Roques, N. Tetrahedron 1998, 54, 13771. Wiedemann, J.; Heiner, T.; Mloston, G.; Prakash, G. K. S.; Olah, G. A. Angew. Chem., Int. Ed. Engl. 1998, 37, 820. Ishii, A.; Miyamoto, F.; Higashiyama, K.; Mikami, K. Tetrahedron Lett. 1998, 39, 1199. Ishii, A.; Miyamoto, F.; Higashiyama, K.; Mikami, K. Chem. Lett. 1998, 119. Ishii, A.; Higashiyama, K.; Mikami, K. Synlett 1997, 1381. Loh, T. -P.; Li, X. -R. Chem. Commun. 1996, 1929.
27. For recent examples dealing with the preparation and the reaction of trifluoroacetaldehyde equivalents, see: Matsutani, H.; Poras, H.; Kusumoto, T.; Hiyama, T. Chem. Commun. 1998, 1259. Matsutani, H.; Poras, H.; Kusumoto, T.; Hiyama, T. Synlett, 1998, 1353. Poras, H.; Matsutani, H.; Yaruva, J.; Kusumoto, T.; Hiyama, T. Chem. Lett. 1998, 665. Xu, Y.; Dolbier, Jr., W. R. Tetrahedron Lett. 1998, 39, 9151. Folléas, B.; Marek, I.; Normant, J. F.; Jalmes, L. S. Tetrahedron Lett. 1998, 39, 2973. Russell, J.; Roques, N. Tetrahedron 1998, 54, 13771. Wiedemann, J.; Heiner, T.; Mloston, G.; Prakash, G. K. S.; Olah, G. A. Angew. Chem., Int. Ed. Engl. 1998, 37, 820. Ishii, A.; Miyamoto, F.; Higashiyama, K.; Mikami, K. Tetrahedron Lett. 1998, 39, 1199. Ishii, A.; Miyamoto, F.; Higashiyama, K.; Mikami, K. Chem. Lett. 1998, 119. Ishii, A.; Higashiyama, K.; Mikami, K. Synlett 1997, 1381. Loh, T. -P.; Li, X. -R. Chem. Commun. 1996, 1929.
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29. Braid, M.; Isersone, H.; Lawlore, F. E. J. Am. Chem. Soc. 1954, 76, 4027. Henne, A. L.; Pelley, R. L.; Alm, R. M. J. Am. Chem. Soc. 1950, 72, 3370. Shechter, H.; Conrad, F. J. Am. Chem. Soc. 1950, 72, 3371.
30. Braid, M.; Isersone, H.; Lawlore, F. E. J. Am. Chem. Soc. 1954, 76, 4027. Henne, A. L.; Pelley, R. L.; Alm, R. M. J. Am. Chem. Soc. 1950, 72, 3370. Shechter, H.; Conrad, F. J. Am. Chem. Soc. 1950, 72, 3371.
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35. Trifluoroacetaldehyde hydrate (75 wt%), which contains 25 wt% water, was used.