Absolute Asymmetric Synthesis of Tertiary a-Amino Acids

被引:21
|
作者
Thi Thoa Mai [1 ]
Branca, Mathieu [1 ]
Gori, Didier [1 ]
Guillot, Regis [1 ]
Kouklovsky, Cyrille [1 ]
Alezra, Valerie [1 ]
机构
[1] Univ Paris 11, Lab Chim Procedes & Subst Nat, CNRS, ICMMO,UMR 8182, F-91405 Orsay, France
关键词
amino acids; amides; asymmetric synthesis; chirality; synthetic methods; ENANTIOSELECTIVE SYNTHESIS; CHIRAL CRYSTALLIZATION; MOLECULAR CHIRALITY; OPTICAL-ACTIVITY; AROMATIC AMIDES; MEMORY; HOMOLOGATION; GENERATION; ROTATION; ACCESS;
D O I
10.1002/anie.201200950
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Frozen: The spontaneous crystallization of an achiral compound in a chiral conformation is used as the unique source of chirality in an absolute asymmetric synthesis of tertiary amino acids. The dynamic axial chirality of tertiary aromatic amides is frozen in a crystal (see picture) and is responsible for the stereoselectivity of the deprotonation/alkylation (see scheme). α-Amino acid derivatives are synthesized in up to 96% ee. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:4981 / 4984
页数:4
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