Enantiomerically pure alpha-fluoroalkyl-alpha-amino acids: Synthesis of (R)-alpha-difluoromethyl-alanine and (S)-alpha-difluoromethyl-serine

被引:36
作者
Bravo, P
Capelli, S
Meille, SV
Seresini, P
Volonterio, A
Zanda, M
机构
[1] C.N.R. - Ctro. di Stud. per le S., Dipto. Chim. del Politec. di Milano, I-20131 Milano
关键词
D O I
10.1016/0957-4166(96)00287-X
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Hydrocyanation of enantiomerically pure N-Cbz alpha-fluoroalkyl beta-sulfinylenamines 1 occurs smoothly by treatment with KCN or by addition of trimethylsilylcyanide or diethyl phosphorocyanidate to preformed sodium derivatives of 1. The diastereoisomeric difluoro alpha-aminonitriles 2b have been transformed in the unnatural amino acids (R)-alpha-difluoromethyl-alanine and (S)-alpha-difluoromethyl-serine. Copyright (C) 1996 Elsevier Science Ltd
引用
收藏
页码:2321 / 2332
页数:12
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