Water-soluble chiral monosulfonamide-cyclohexane-1,2-diamine-RhCp* complex and its application in the asymmetric transfer hydrogenation (ATH) of ketones

被引：45

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 22500, BC, Mexico

来源：

TETRAHEDRON LETTERS | 2007年 / 48卷 / 25期

关键词：

monosulfonamide ligands; RhCp* complex; asymmetric transfer hydrogenation; ketones;

D O I：

10.1016/j.tetlet.2007.04.116

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Monosulfonamide ligands with heteroatom/heterocyclic systems were derived from trans-(1R,2R)-cyclohexane-1,2-diamine and complexed with [Ru(benzene)Cl-2](2), [Cp*RhCl2](2) in situ and used in the ATH of aromatic ketones with aqueous sodium formate as the hydrogen source. The chiral secondary alcohols were obtained with > 93% enantioselectivity and > 89% yield. Reduction in water was faster than in isopropanol/KOH. Addition of surfactants showed little or no effects. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：4335 / 4338

页数：4

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