An air oxidizable bimetallic palladium(II) catalyst for asymmetric allylic oxidation of olefins in acetic acid

被引：21
|
作者：
El-Qisiari, AK [1 ]
Qaseer, HA [1 ]
Henry, PM [1 ]
机构：
[1] Loyola Univ, Dept Chem, Chicago, IL 60626 USA
来源：
TETRAHEDRON LETTERS | 2002年 / 43卷 / 23期
基金：
美国国家科学基金会;
关键词：
palladium(II); olefins; air oxidation; allylic acetates; asymmetric; acetic acid; bimetallic;
D O I：
10.1016/S0040-4039(02)00749-9
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
A bimetallic palladium(II) complex containing a triketone ligand and a bridging diphosphine ligand oxidizes olefins in acetic acid to allylic acetates by a direct air oxidation, which does not require intermediate redox systems. When the diphosphine is chiral, an asymmetric reaction occurs which gives enantioselectivities between 52 and 78% for cyclic olefins. (C) 2002 Elsevier Science Ltd. All rights reserved.
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页码：4229 / 4231
页数：3
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