Asymmetric reactions catalyzed by chiral titanium complexes

被引：13

作者：

Chen, FX

Feng, XM ^{[1
]}

Jiang, YZ

机构：

[1] Sichuan Univ, Fac Chem, Sichuan Key Lab Green Chem & Technol, Chengdu 610064, Peoples R China

[2] Chinese Acad Sci, Chengdu Inst Organ Chem, Chengdu 610041, Peoples R China

来源：

ARKIVOC | 2003年

关键词：

asymmetric reactions; catalysis; chiral titanium complexes;

D O I：

10.3998/ark.5550190.0004.204

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

This presentation reviewed some of our recent progress in asymmetric reactions catalyzed by chiral Ti(IV) complexes, including asymmetric oxa-Diels-Alder reaction( up to 99% ee), asymmetric oxidation of sulfides for sulfoxides ( up to 96% ee), enantioselective silylcyanation of aldehydes ( up to 87% ee) and ketones ( up to 69% ee). The influence of ligand structure, substrate, amount of catalyst, counter ion, solvent, temperature, and other conditions on the reactivity and selectivity were discussed. Some mechanistic insights were also presented.

引用

页码：21 / 31

页数：11

共 41 条

[1] The asymmetric addition of trimethylsilyl cyanide to ketones catalysed by a bimetallic, chiral (salen)titanium complex [J].