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1
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33748219016
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For recent examples, see (a) Wirth, T. Angew. Chem., Int. Ed. Engl. 1995, 34, 1726. (b) Fujita, K.; Murata, K.; Iwaoka, M.; Tomoda, S. J. Chem. Soc., Chem. Commun. 1995, 1641. (c) Déziel, R., Malenfant, E. J. Org. Chem. 1995, 60, 4660. (d) Lipshutz, B. H.; Gross, T. J. Org. Chem. 1995, 60, 3572. (e) Fukuzawa, S.; Kasugahara, Y.; Uemura, S. Tetrahedron Lett. 1994, 35, 9403. (f) Déziel, R.; Goulet, S.; Grenier, L.; Bordeleau, J.; Bernier, J. J. Org. Chem. 1993, 58, 3619. (g) Tiecco, M.; Testafern, L ; Tingoli, M.; Bagnoli, L.; Santi, C. J. Chem. Soc., Chem. Commun 1993, 637. (h) Kang, S. H.; Lee, S. B. Tetrahedron Lett. 1993, 34, 1955. (i) Mihelich, E. D.; Hite, G. A. J. Am. Chem. Soc. 1992, 114, 7318. (j) Lipshutz, B. H.; Barton, J. C. J. Am. Chem. Soc. 1992, 114, 1084. (k) Mihelich, E. D. J. Am. Chem. Soc. 1990, 112, 8995 and references cited therein
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For recent examples, see (a) Wirth, T. Angew. Chem., Int. Ed. Engl. 1995, 34, 1726. (b) Fujita, K.; Murata, K.; Iwaoka, M.; Tomoda, S. J. Chem. Soc., Chem. Commun. 1995, 1641. (c) Déziel, R., Malenfant, E. J. Org. Chem. 1995, 60, 4660. (d) Lipshutz, B. H.; Gross, T. J. Org. Chem. 1995, 60, 3572. (e) Fukuzawa, S.; Kasugahara, Y.; Uemura, S. Tetrahedron Lett. 1994, 35, 9403. (f) Déziel, R.; Goulet, S.; Grenier, L.; Bordeleau, J.; Bernier, J. J. Org. Chem. 1993, 58, 3619. (g) Tiecco, M.; Testafern, L ; Tingoli, M.; Bagnoli, L.; Santi, C. J. Chem. Soc., Chem. Commun 1993, 637. (h) Kang, S. H.; Lee, S. B. Tetrahedron Lett. 1993, 34, 1955. (i) Mihelich, E. D.; Hite, G. A. J. Am. Chem. Soc. 1992, 114, 7318. (j) Lipshutz, B. H.; Barton, J. C. J. Am. Chem. Soc. 1992, 114, 1084. (k) Mihelich, E. D. J. Am. Chem. Soc. 1990, 112, 8995 and references cited therein
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Fujita, K.1
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3
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33751155162
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For recent examples, see (a) Wirth, T. Angew. Chem., Int. Ed. Engl. 1995, 34, 1726. (b) Fujita, K.; Murata, K.; Iwaoka, M.; Tomoda, S. J. Chem. Soc., Chem. Commun. 1995, 1641. (c) Déziel, R., Malenfant, E. J. Org. Chem. 1995, 60, 4660. (d) Lipshutz, B. H.; Gross, T. J. Org. Chem. 1995, 60, 3572. (e) Fukuzawa, S.; Kasugahara, Y.; Uemura, S. Tetrahedron Lett. 1994, 35, 9403. (f) Déziel, R.; Goulet, S.; Grenier, L.; Bordeleau, J.; Bernier, J. J. Org. Chem. 1993, 58, 3619. (g) Tiecco, M.; Testafern, L ; Tingoli, M.; Bagnoli, L.; Santi, C. J. Chem. Soc., Chem. Commun 1993, 637. (h) Kang, S. H.; Lee, S. B. Tetrahedron Lett. 1993, 34, 1955. (i) Mihelich, E. D.; Hite, G. A. J. Am. Chem. Soc. 1992, 114, 7318. (j) Lipshutz, B. H.; Barton, J. C. J. Am. Chem. Soc. 1992, 114, 1084. (k) Mihelich, E. D. J. Am. Chem. Soc. 1990, 112, 8995 and references cited therein
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For recent examples, see (a) Wirth, T. Angew. Chem., Int. Ed. Engl. 1995, 34, 1726. (b) Fujita, K.; Murata, K.; Iwaoka, M.; Tomoda, S. J. Chem. Soc., Chem. Commun. 1995, 1641. (c) Déziel, R., Malenfant, E. J. Org. Chem. 1995, 60, 4660. (d) Lipshutz, B. H.; Gross, T. J. Org. Chem. 1995, 60, 3572. (e) Fukuzawa, S.; Kasugahara, Y.; Uemura, S. Tetrahedron Lett. 1994, 35, 9403. (f) Déziel, R.; Goulet, S.; Grenier, L.; Bordeleau, J.; Bernier, J. J. Org. Chem. 1993, 58, 3619. (g) Tiecco, M.; Testafern, L ; Tingoli, M.; Bagnoli, L.; Santi, C. J. Chem. Soc., Chem. Commun 1993, 637. (h) Kang, S. H.; Lee, S. B. Tetrahedron Lett. 1993, 34, 1955. (i) Mihelich, E. D.; Hite, G. A. J. Am. Chem. Soc. 1992, 114, 7318. (j) Lipshutz, B. H.; Barton, J. C. J. Am. Chem. Soc. 1992, 114, 1084. (k) Mihelich, E. D. J. Am. Chem. Soc. 1990, 112, 8995 and references cited therein
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For recent examples, see (a) Wirth, T. Angew. Chem., Int. Ed. Engl. 1995, 34, 1726. (b) Fujita, K.; Murata, K.; Iwaoka, M.; Tomoda, S. J. Chem. Soc., Chem. Commun. 1995, 1641. (c) Déziel, R., Malenfant, E. J. Org. Chem. 1995, 60, 4660. (d) Lipshutz, B. H.; Gross, T. J. Org. Chem. 1995, 60, 3572. (e) Fukuzawa, S.; Kasugahara, Y.; Uemura, S. Tetrahedron Lett. 1994, 35, 9403. (f) Déziel, R.; Goulet, S.; Grenier, L.; Bordeleau, J.; Bernier, J. J. Org. Chem. 1993, 58, 3619. (g) Tiecco, M.; Testafern, L ; Tingoli, M.; Bagnoli, L.; Santi, C. J. Chem. Soc., Chem. Commun 1993, 637. (h) Kang, S. H.; Lee, S. B. Tetrahedron Lett. 1993, 34, 1955. (i) Mihelich, E. D.; Hite, G. A. J. Am. Chem. Soc. 1992, 114, 7318. (j) Lipshutz, B. H.; Barton, J. C. J. Am. Chem. Soc. 1992, 114, 1084. (k) Mihelich, E. D. J. Am. Chem. Soc. 1990, 112, 8995 and references cited therein
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For recent examples, see (a) Wirth, T. Angew. Chem., Int. Ed. Engl. 1995, 34, 1726. (b) Fujita, K.; Murata, K.; Iwaoka, M.; Tomoda, S. J. Chem. Soc., Chem. Commun. 1995, 1641. (c) Déziel, R., Malenfant, E. J. Org. Chem. 1995, 60, 4660. (d) Lipshutz, B. H.; Gross, T. J. Org. Chem. 1995, 60, 3572. (e) Fukuzawa, S.; Kasugahara, Y.; Uemura, S. Tetrahedron Lett. 1994, 35, 9403. (f) Déziel, R.; Goulet, S.; Grenier, L.; Bordeleau, J.; Bernier, J. J. Org. Chem. 1993, 58, 3619. (g) Tiecco, M.; Testafern, L ; Tingoli, M.; Bagnoli, L.; Santi, C. J. Chem. Soc., Chem. Commun 1993, 637. (h) Kang, S. H.; Lee, S. B. Tetrahedron Lett. 1993, 34, 1955. (i) Mihelich, E. D.; Hite, G. A. J. Am. Chem. Soc. 1992, 114, 7318. (j) Lipshutz, B. H.; Barton, J. C. J. Am. Chem. Soc. 1992, 114, 1084. (k) Mihelich, E. D. J. Am. Chem. Soc. 1990, 112, 8995 and references cited therein
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0002440596
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For recent examples, see (a) Wirth, T. Angew. Chem., Int. Ed. Engl. 1995, 34, 1726. (b) Fujita, K.; Murata, K.; Iwaoka, M.; Tomoda, S. J. Chem. Soc., Chem. Commun. 1995, 1641. (c) Déziel, R., Malenfant, E. J. Org. Chem. 1995, 60, 4660. (d) Lipshutz, B. H.; Gross, T. J. Org. Chem. 1995, 60, 3572. (e) Fukuzawa, S.; Kasugahara, Y.; Uemura, S. Tetrahedron Lett. 1994, 35, 9403. (f) Déziel, R.; Goulet, S.; Grenier, L.; Bordeleau, J.; Bernier, J. J. Org. Chem. 1993, 58, 3619. (g) Tiecco, M.; Testafern, L ; Tingoli, M.; Bagnoli, L.; Santi, C. J. Chem. Soc., Chem. Commun 1993, 637. (h) Kang, S. H.; Lee, S. B. Tetrahedron Lett. 1993, 34, 1955. (i) Mihelich, E. D.; Hite, G. A. J. Am. Chem. Soc. 1992, 114, 7318. (j) Lipshutz, B. H.; Barton, J. C. J. Am. Chem. Soc. 1992, 114, 1084. (k) Mihelich, E. D. J. Am. Chem. Soc. 1990, 112, 8995 and references cited therein
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Tiecco, M.1
Testafern, L.2
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8
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0027467073
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For recent examples, see (a) Wirth, T. Angew. Chem., Int. Ed. Engl. 1995, 34, 1726. (b) Fujita, K.; Murata, K.; Iwaoka, M.; Tomoda, S. J. Chem. Soc., Chem. Commun. 1995, 1641. (c) Déziel, R., Malenfant, E. J. Org. Chem. 1995, 60, 4660. (d) Lipshutz, B. H.; Gross, T. J. Org. Chem. 1995, 60, 3572. (e) Fukuzawa, S.; Kasugahara, Y.; Uemura, S. Tetrahedron Lett. 1994, 35, 9403. (f) Déziel, R.; Goulet, S.; Grenier, L.; Bordeleau, J.; Bernier, J. J. Org. Chem. 1993, 58, 3619. (g) Tiecco, M.; Testafern, L ; Tingoli, M.; Bagnoli, L.; Santi, C. J. Chem. Soc., Chem. Commun 1993, 637. (h) Kang, S. H.; Lee, S. B. Tetrahedron Lett. 1993, 34, 1955. (i) Mihelich, E. D.; Hite, G. A. J. Am. Chem. Soc. 1992, 114, 7318. (j) Lipshutz, B. H.; Barton, J. C. J. Am. Chem. Soc. 1992, 114, 1084. (k) Mihelich, E. D. J. Am. Chem. Soc. 1990, 112, 8995 and references cited therein
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For recent examples, see (a) Wirth, T. Angew. Chem., Int. Ed. Engl. 1995, 34, 1726. (b) Fujita, K.; Murata, K.; Iwaoka, M.; Tomoda, S. J. Chem. Soc., Chem. Commun. 1995, 1641. (c) Déziel, R., Malenfant, E. J. Org. Chem. 1995, 60, 4660. (d) Lipshutz, B. H.; Gross, T. J. Org. Chem. 1995, 60, 3572. (e) Fukuzawa, S.; Kasugahara, Y.; Uemura, S. Tetrahedron Lett. 1994, 35, 9403. (f) Déziel, R.; Goulet, S.; Grenier, L.; Bordeleau, J.; Bernier, J. J. Org. Chem. 1993, 58, 3619. (g) Tiecco, M.; Testafern, L ; Tingoli, M.; Bagnoli, L.; Santi, C. J. Chem. Soc., Chem. Commun 1993, 637. (h) Kang, S. H.; Lee, S. B. Tetrahedron Lett. 1993, 34, 1955. (i) Mihelich, E. D.; Hite, G. A. J. Am. Chem. Soc. 1992, 114, 7318. (j) Lipshutz, B. H.; Barton, J. C. J. Am. Chem. Soc. 1992, 114, 1084. (k) Mihelich, E. D. J. Am. Chem. Soc. 1990, 112, 8995 and references cited therein
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J. Am. Chem. Soc.
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For recent examples, see (a) Wirth, T. Angew. Chem., Int. Ed. Engl. 1995, 34, 1726. (b) Fujita, K.; Murata, K.; Iwaoka, M.; Tomoda, S. J. Chem. Soc., Chem. Commun. 1995, 1641. (c) Déziel, R., Malenfant, E. J. Org. Chem. 1995, 60, 4660. (d) Lipshutz, B. H.; Gross, T. J. Org. Chem. 1995, 60, 3572. (e) Fukuzawa, S.; Kasugahara, Y.; Uemura, S. Tetrahedron Lett. 1994, 35, 9403. (f) Déziel, R.; Goulet, S.; Grenier, L.; Bordeleau, J.; Bernier, J. J. Org. Chem. 1993, 58, 3619. (g) Tiecco, M.; Testafern, L ; Tingoli, M.; Bagnoli, L.; Santi, C. J. Chem. Soc., Chem. Commun 1993, 637. (h) Kang, S. H.; Lee, S. B. Tetrahedron Lett. 1993, 34, 1955. (i) Mihelich, E. D.; Hite, G. A. J. Am. Chem. Soc. 1992, 114, 7318. (j) Lipshutz, B. H.; Barton, J. C. J. Am. Chem. Soc. 1992, 114, 1084. (k) Mihelich, E. D. J. Am. Chem. Soc. 1990, 112, 8995 and references cited therein
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For recent examples, see (a) Wirth, T. Angew. Chem., Int. Ed. Engl. 1995, 34, 1726. (b) Fujita, K.; Murata, K.; Iwaoka, M.; Tomoda, S. J. Chem. Soc., Chem. Commun. 1995, 1641. (c) Déziel, R., Malenfant, E. J. Org. Chem. 1995, 60, 4660. (d) Lipshutz, B. H.; Gross, T. J. Org. Chem. 1995, 60, 3572. (e) Fukuzawa, S.; Kasugahara, Y.; Uemura, S. Tetrahedron Lett. 1994, 35, 9403. (f) Déziel, R.; Goulet, S.; Grenier, L.; Bordeleau, J.; Bernier, J. J. Org. Chem. 1993, 58, 3619. (g) Tiecco, M.; Testafern, L ; Tingoli, M.; Bagnoli, L.; Santi, C. J. Chem. Soc., Chem. Commun 1993, 637. (h) Kang, S. H.; Lee, S. B. Tetrahedron Lett. 1993, 34, 1955. (i) Mihelich, E. D.; Hite, G. A. J. Am. Chem. Soc. 1992, 114, 7318. (j) Lipshutz, B. H.; Barton, J. C. J. Am. Chem. Soc. 1992, 114, 1084. (k) Mihelich, E. D. J. Am. Chem. Soc. 1990, 112, 8995 and references cited therein
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Toshimitsu, A.; Ito, M.; Uemura, S. J. Chem. Soc. Chem. Commun., 1989, 530. For the epimerization of the chiral ring carbon in a diastereomeric episelenonium ion intermediate, see ref 1k.
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Alexander, R. P.; Paterson, I Tetrahedron Lett. 1983, 24, 5911. Successful examples of the carbon-carbon bond formation via the episelenonium ion intermediate have been limited to certain intramolecular reactions using olefins as a carbon nucleophile: (a) Toshimitsu, A.; Kusumoto, M.; Tanimoto, S. Bull. Inst. Chem. Res., Kyoto Univ. 1992, 70, 270. (b) Ley, S. V., Lygo, B.; Morins, H.; Morton, J. A. J. Chem. Soc., Chem. Commun. 1982, 1251. (c) Toshimitsu, A.; Uemura, S.; Okano, M. J. Chem. Soc., Chem. Commun. 1982, 87. (d) Kametani, T., Kurobe, H.; Nemoto, H. J Chem. Soc., Perkin Trans. 1 1982, 1085. and references cited therein.
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Kyoto Univ.
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Alexander, R. P.; Paterson, I Tetrahedron Lett. 1983, 24, 5911. Successful examples of the carbon-carbon bond formation via the episelenonium ion intermediate have been limited to certain intramolecular reactions using olefins as a carbon nucleophile: (a) Toshimitsu, A.; Kusumoto, M.; Tanimoto, S. Bull. Inst. Chem. Res., Kyoto Univ. 1992, 70, 270. (b) Ley, S. V., Lygo, B.; Morins, H.; Morton, J. A. J. Chem. Soc., Chem. Commun. 1982, 1251. (c) Toshimitsu, A.; Uemura, S.; Okano, M. J. Chem. Soc., Chem. Commun. 1982, 87. (d) Kametani, T., Kurobe, H.; Nemoto, H. J Chem. Soc., Perkin Trans. 1 1982, 1085. and references cited therein.
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37049113362
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Alexander, R. P.; Paterson, I Tetrahedron Lett. 1983, 24, 5911. Successful examples of the carbon-carbon bond formation via the episelenonium ion intermediate have been limited to certain intramolecular reactions using olefins as a carbon nucleophile: (a) Toshimitsu, A.; Kusumoto, M.; Tanimoto, S. Bull. Inst. Chem. Res., Kyoto Univ. 1992, 70, 270. (b) Ley, S. V., Lygo, B.; Morins, H.; Morton, J. A. J. Chem. Soc., Chem. Commun. 1982, 1251. (c) Toshimitsu, A.; Uemura, S.; Okano, M. J. Chem. Soc., Chem. Commun. 1982, 87. (d) Kametani, T., Kurobe, H.; Nemoto, H. J Chem. Soc., Perkin Trans. 1 1982, 1085. and references cited therein.
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Ley, S.V.1
Lygo, B.2
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Morton, J.A.4
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10944250473
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Alexander, R. P.; Paterson, I Tetrahedron Lett. 1983, 24, 5911. Successful examples of the carbon-carbon bond formation via the episelenonium ion intermediate have been limited to certain intramolecular reactions using olefins as a carbon nucleophile: (a) Toshimitsu, A.; Kusumoto, M.; Tanimoto, S. Bull. Inst. Chem. Res., Kyoto Univ. 1992, 70, 270. (b) Ley, S. V., Lygo, B.; Morins, H.; Morton, J. A. J. Chem. Soc., Chem. Commun. 1982, 1251. (c) Toshimitsu, A.; Uemura, S.; Okano, M. J. Chem. Soc., Chem. Commun. 1982, 87. (d) Kametani, T., Kurobe, H.; Nemoto, H. J Chem. Soc., Perkin Trans. 1 1982, 1085. and references cited therein.
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Toshimitsu, A.1
Uemura, S.2
Okano, M.3
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37049098736
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-
and references cited therein
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Alexander, R. P.; Paterson, I Tetrahedron Lett. 1983, 24, 5911. Successful examples of the carbon-carbon bond formation via the episelenonium ion intermediate have been limited to certain intramolecular reactions using olefins as a carbon nucleophile: (a) Toshimitsu, A.; Kusumoto, M.; Tanimoto, S. Bull. Inst. Chem. Res., Kyoto Univ. 1992, 70, 270. (b) Ley, S. V., Lygo, B.; Morins, H.; Morton, J. A. J. Chem. Soc., Chem. Commun. 1982, 1251. (c) Toshimitsu, A.; Uemura, S.; Okano, M. J. Chem. Soc., Chem. Commun. 1982, 87. (d) Kametani, T., Kurobe, H.; Nemoto, H. J Chem. Soc., Perkin Trans. 1 1982, 1085. and references cited therein.
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(1982)
J Chem. Soc., Perkin Trans. 1
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Kametani, T.1
Kurobe, H.2
Nemoto, H.3
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18
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37049090861
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Toshimitsu, A.; Hayashi, G ; Terao, K.; Uemura, S. J. Chem. Soc., Perkin Trans 1 1986, 343
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Toshimitsu, A.1
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Uemura, S.4
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19
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15844397466
-
-
note
-
4.
-
-
-
-
20
-
-
15844426764
-
-
note
-
The enantiomeric excesses of 3a - e were determined by HPLC analyses using chiral columns (Chiralcel OD (Daicel) for 3a. 3b. and 3e and Chiralpak AD (Daicel) for 3c and 3d).
-
-
-
-
21
-
-
15844396639
-
-
note
-
Total yields and isomer ratios were not affected by the mode of the addition
-
-
-
-
22
-
-
15744406179
-
-
note
-
The precise mechanism of this reaction has not yet been clarified.
-
-
-
-
23
-
-
84981838513
-
-
Rundel, W. Chem. Ber. 1968, 101, 2956. du Mont, W. W.; Kubiniok, S.; Peters, K.; von Schnering, H.-G. Angew. Chem., Int. Ed. Engl. 1987, 26, 780.
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(1968)
Chem. Ber.
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Rundel, W.1
-
24
-
-
84985502031
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-
Rundel, W. Chem. Ber. 1968, 101, 2956. du Mont, W. W.; Kubiniok, S.; Peters, K.; von Schnering, H.-G. Angew. Chem., Int. Ed. Engl. 1987, 26, 780.
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Angew. Chem., Int. Ed. Engl.
, vol.26
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-
-
Du Mont, W.W.1
Kubiniok, S.2
Peters, K.3
Von Schnering, H.-G.4
-
25
-
-
84986972329
-
-
Pearson, D. E.; Frazer, M. G.; Frazer, V. S.; Washburn, L C. Synthesis 1976, 621.
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(1976)
Synthesis
, pp. 621
-
-
Pearson, D.E.1
Frazer, M.G.2
Frazer, V.S.3
Washburn, L.C.4
-
26
-
-
15844428189
-
-
note
-
These reactions were carried out at the concentration of 0.001 mol/L using the reverse addition
-
-
-
-
27
-
-
15844374642
-
-
note
-
In addition to the steric protection, an electron-withdrawing effect of the substituent(s) seems to contribute to prevent the racemization Thus, we have found that while the steric protection by the 2,6-bis(trifluoromethyl)phenyl group on the selenium group is insufficient to prevent the selenophilic attack by carbon nucleophiles, the Ritter-type reaction proceeds stereospecifically without loss of the optical purity Further study is now in progress in our laboratory to clarify the origin of the electronic effect.
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