Asymmetric hydrogenation of α-ketoesters over finely dispersed polymer-stabilized platinum clusters

被引：105

作者：

Zuo, XB

Liu, HF ^{[1
]}

Liu, MH

机构：

[1] Chinese Acad Sci, Polymer Chem Lab, Beijing 100080, Peoples R China

[2] Chinese Acad Sci, China Petrochem Corp, Inst Chem, Beijing 100080, Peoples R China

来源：

TETRAHEDRON LETTERS | 1998年 / 39卷 / 14期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/S0040-4039(98)00088-4

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Finely dispersed polyvinylpyrrolidone-stabilized platinum clusters (PVP-Pt) modified with cinchonidine catalyze the asymmetric hydrogenation of alpha-ketoesters, giving enantiomeric excesses in favour of R-(+)-methyl lactate up to 97.6%. The reaction is demonstrated to be structure insensitive and runs best over a tiny cluster with a mean size of 1.4 nm, which is quite different from conventional supported catalysts. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：1941 / 1944

页数：4

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