Synthesis and characterization of a chiral Zn(II) complex based on a trans-1,2-diaminocyclohexane derivative and catalytic reduction of acetophenone

被引：43

作者：

Roh, SG ^{[1
]}

Yoon, JU ^{[1
]}

Jeong, JH ^{[1
]}

机构：

[1] Kyungpook Natl Univ, Dept Chem, Taegu 702701, South Korea

来源：

POLYHEDRON | 2004年 / 23卷 / 12期

关键词：

trans-1,2-diaminocyclohexane; crystal structure; zinc complex; catalytic enantioselective reduction;

D O I：

10.1016/j.poly.2004.04.033

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Reaction of ZnCl2 with R,R-bmbcd (= N,N'-bis(4-methoxy-benzyl)-cyclohexane-1,2-diamine) I in ethanol yields the chiral [ZnCl2(R,R-bmbcd)] 2, which crystallizes in the monoclinic space group P2(1). The Zn atom has a distorted tetrahedral geometry involving two nitrogen atoms of R, R-bmbcd and two chloro ligands with the range of bond lengths, 2.066(2)-2.2289(9) Angstrom. The result of the catalytic enantioselective reduction of acetophenone promoted by R-1 R-bmbcd:Zn(OTf)(2) = 1:1 mole ratio in the presence of catecholborane for 48 h at 0 degreesC give (S)-(-)-1-phenylethanol in 48% ee with 77% yield. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：2063 / 2067

页数：5

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