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

被引：22

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.

引用

页码：4229 / 4231

页数：3

共 18 条

[1]

BACKVALL JE, 1990, J AM CHEM SOC, V112, P5160

[2] Aerobic oxidations of conjugated dienes using a catalytic palladium(II)-quinone-heteropolyacid system for electron transfer from organic substrates to molecular oxygen [J].