Homogeneous catalytic asymmetric dihydroxylation of olefins induced by an efficient and recoverable polymer-bound ligand QN-AQN-OPEG-OMe

被引：12

作者：

Cheng, SK ^{[1
]}

Zhang, SY ^{[1
]}

Wang, PA ^{[1
]}

Kuang, YQ ^{[1
]}

Sun, XL ^{[1
]}

机构：

[1] Fourth Mil Med Univ, Sch Pharm, Dept Chem, Xian 710032, Peoples R China

来源：

APPLIED ORGANOMETALLIC CHEMISTRY | 2005年 / 19卷 / 08期

关键词：

homogeneous catalysis; polymer-bound ligand; anthraquinone; asymmetric dihydroxylation;

D O I：

10.1002/aoc.936

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A novel polymer-bound alkaloid ligand QN-AQN-OPEG-OMe, which was characterized by an anthraquinone core at the 9-O position of quinine, was synthesized conveniently. It delivered up to 99% ees in the homogeneous catalytic asymmetric dihydroxylation of seven olefins, comparable to that reported for the homogeneous catalyst with free ligand (DHQ)(2)AQN. This ligand was recovered almost quantitatively by a simple filtration and reused for five cycles without obvious decreased enantioselectivities and catalytic activities. Copyright (c) 2005 John Wiley & Sons, Ltd.

引用

页码：975 / 979

页数：5

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