A new class of bis-oxazoline ligands for the Cu-catalysed asymmetric cyclopropanation of olefins

被引：70

作者：

Bedekar, AV ^{[1
]}

Andersson, PG ^{[1
]}

机构：

[1] UNIV UPPSALA,INST CHEM,S-75121 UPPSALA,SWEDEN

来源：

TETRAHEDRON LETTERS | 1996年 / 37卷 / 23期

关键词：

D O I：

10.1016/0040-4039(96)00736-8

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A set of new chiral bis-oxazolines, 5a-b and 6a-c, has been synthesised from D and L-diethyl 2,3-O-isopropylidene tartrates and chiral amino alcohols. These ligands were found to be efficient in the Cu(I)-catalysed asymmetric cyclopropanation of olefins. Bis-oxazolines of this type based on readily available valine were found comparable with previous ligands based on the more expensive ten-leucine. (C) 1996 Elsevier Science Ltd.

引用

页码：4073 / 4076

页数：4

共 16 条

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