Heterogenization of Shibasaki's binol/la catalyst for enantioselective epoxidation of α,β-unsaturated ketones with multitopic binol ligands:: The impact of bridging spacers

被引：72

作者：

Wang, XW

Shi, L

Li, MX

Ding, KL

机构：

[1] Chinese Acad Sci, Shanghai Inst Organ Chem, State Key Lab Organomet Chem, Shanghai 200032, Peoples R China

[2] Shanghai Univ, Coll Sci, Dept Chem, Shanghai 200436, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2005年 / 44卷 / 39期

关键词：

asymmetric catalysis; epoxidation; heterogeneous catalysis; ketones; lanthanum;

D O I：

10.1002/anie.200501676

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

(Figure Presented) Bridging the gap: Heterogenized Shibasaki's binol/La catalyst is synthesized by a self-supporting strategy through the reactions of multitopic ligands with La(OiPr)3 (see picture). The catalyst shows high activity and enantioselectivity, and can be reused in the asymmetric epoxidation of α,β-unsaturated ketones. © 2005 Wiley-VCH Verlag GmbH & Co. KGaA.

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收藏

页码：6362 / 6366

页数：5

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