New heterogenized C2-symmetric bis(sulfonamide)-cyclohexane-1,2-diamine-RhIIICp* complexes and their application in the asymmetric transfer hydrogenation (ATH) of ketones in water

被引：62

作者：

Cortez, Norma A. ^{[1
]}

Aguirre, Gerardo ^{[1
]}

Parra-Hake, Miguel ^{[1
]}

Somanathan, Ratnasamy ^{[1
]}

机构：

[1] Inst Tecnol Tijuana, Ctr Grad & Invest, Tijuana 22510, BC, Mexico

来源：

TETRAHEDRON LETTERS | 2009年 / 50卷 / 19期

关键词：

Asymmetric transfer hydrogenation; Sulfonamide ligands; Rh(III) complex; Heterogenized ligands; HIGHLY EFFICIENT; ENANTIOSELECTIVE REDUCTION; AROMATIC KETONES; MOLECULAR CATALYSTS; PRACTICAL SYNTHESIS; ACID DERIVATIVES; AQUEOUS-MEDIA; LIGAND; DIAMINE;

D O I：

10.1016/j.tetlet.2009.02.183

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

C-2-symmetric bis(sulfonamide) ligands derived from chiral trans-(1R,2R)-cyclohexane-1,2-diamine were immobilized on silica gel and on polystyrene resin, and complexed to (RhCp)-Cp-III*. The resulting complexes were used as catalysts in the asymmetric transfer hydrogenation (ATH) of acetophenone. The chiral secondary alcohol was obtained in high yields (>99%) and enantioselectivities (92%) with aqueous sodium formate as the hydride source. The immobilized catalysts were recycled with no loss in activity. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：2228 / 2231

页数：4

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