Direct immobilization of chiral auxiliaries on mineral supports and heterogeneous enantioselective allkylation of benzaldehyde with diethylzinc

被引：13

作者：

Abramson, S ^{[1
]}

Laspéras, M ^{[1
]}

Chiche, B ^{[1
]}

机构：

[1] Ecole Natl Super Chim Montpellier, CNRS, UMR 5618, Lab Mat Catalyt & Catalyse ChimOrgan, F-34053 Montpellier 1, France

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2001年 / 165卷 / 1-2期

关键词：

heterogeneous enantioselective catalysis; alkylation; mesoporous silica; supported aminoalcohols;

D O I：

10.1016/S1381-1169(00)00426-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

New solid chiral auxiliaries are used in the enantioselective alkylation of benzaldehyde with diethylzinc. These auxiliaries are obtained by direct immobilization of their homogeneous counterparts, (-)-ephedrine and (-)-O-methyl-ephedrine. on the surface of mesoporous micelle templated silicates and aluminosilicates. Hybrid materials are characterized, and the interactions between the heteroatoms of the organic compounds and the surface are studied by FTIR spectroscopy. Efficiency of such hybrid solids is discussed. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：231 / 242

页数：12

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