Chiral C2-symmetric figands containing two binaphthyl units linked by 2,2′-bipyridyl bridge in asymmetric catalysis

被引：8
作者：
Bai, XL [1 ]
Kang, CQ [1 ]
Liu, XD [1 ]
Gao, LX [1 ]
机构：
[1] Chinese Acad Sci, Grad Sch, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
来源：
TETRAHEDRON-ASYMMETRY | 2005年 / 16卷 / 03期
关键词：
D O I：
10.1016/j.tetasy.2004.12.015
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The catalytic activities of new chiral C-2-symmetric ligands 1-4 in the asymmetric alkylation of aromatic aldehydes with diethylzinc to give 1-arylpropanols are studied. In most cases, the yields were good and enantioselectivities up to 87% were observed. Copper-catalyzed cyclopropanation proceeded with less than or equal to51% enantioselectivity and similar to3 :1 trans/cis-diastereoselectivity. (C) 2005 Elsevier Ltd. All rights reserved.
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页码：727 / 731
页数：5
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