Stereocontrol at the quaternary center in 1-substituted 1-phenyl-2,2,2-trifluoroethylamines:: Stereospecific substitution with retention of a chiral cyclic fluoral N,O-acetal with organolithium reagents
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Ishii, A
Miyamoto, F
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机构:Hoshi Univ, Fac Pharmaceut Sci, Shinagawa Ku, Tokyo 142, Japan
Miyamoto, F
Higashiyama, K
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Hoshi Univ, Fac Pharmaceut Sci, Shinagawa Ku, Tokyo 142, JapanHoshi Univ, Fac Pharmaceut Sci, Shinagawa Ku, Tokyo 142, Japan
Higashiyama, K
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Mikami, K
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机构:Hoshi Univ, Fac Pharmaceut Sci, Shinagawa Ku, Tokyo 142, Japan
Mikami, K
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[1] Hoshi Univ, Fac Pharmaceut Sci, Shinagawa Ku, Tokyo 142, Japan
[2] Tokyo Inst Technol, Dept Chem Technol, Meguro Ku, Tokyo 152, Japan
The asymmetric synthesis of 1-substituted 1-phenyl-2,2,2-trifluoroethylamines from chiral 1,3-oxazolidines is described. The stereospecific substitution reaction with organolithium reagents of chiral 1,3-oxazolidines having a trifluoromethyl group proceeds with retention to control the newly created quaternary center. (C) 1998 Elsevier Science Ltd. All rights reserved.