Catalytic Asymmetric Synthesis of Thiols

被引:58
|
作者
Monaco, Mattia Riccardo [1 ]
Prevost, Sebastien [1 ]
List, Benjamin [1 ]
机构
[1] Max Planck Inst Kohlenforsch, D-45470 Mulheim, Germany
基金
欧洲研究理事会;
关键词
MESO-EPOXIDES; ENANTIOSELECTIVE ADDITION; CARBOXYLIC-ACIDS; DESYMMETRIZATION;
D O I
10.1021/ja510069w
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The synthesis of enantiopure thiols is of significant interest for industrial and academic applications. However, direct asymmetric approaches to free thiols have previously been unknown. Here we describe a novel organocascade that is catalyzed by a confined chiral phosphoric acid and furnishes O-protected beta-hydroxythiols with excellent enantioselectivities. The method relies on an asymmetric thiocarboxylysis of meso-epoxides, followed by an intramolecular trans-esterification reaction. By varying the reaction conditions, the intermediate thioesters can also be obtained chemoselectively and enantioselectively.
引用
收藏
页码:16982 / 16985
页数:4
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