Synthesis of a novel photoresponsive axially chiral phosphine ligand containing an arylazo group and its application to palladium-catalyzed asymmetric allylic alkylation

被引:22
作者
Kawamura, M [1 ]
Kiyotake, R [1 ]
Kudo, K [1 ]
机构
[1] Univ Tokyo, Inst Ind Sci, Meguro Ku, Tokyo 1538505, Japan
关键词
azo compounds; binaphthyl; palladium; phosphines; photoisomerization;
D O I
10.1002/chir.10131
中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
Novel photoresponsive axially chiral monophosphine ligands containing azobenzene moiety were prepared and applied to a palladium-catalyzed allylic alkylation. The reaction of rac-1,3-diphenyl-2-propenyl acetate gave the alkylated products with up to 90% enantiomeric excess. The ligand exhibited a trans to cis photoisomerization upon irradiation with UV light. (C) 2002 Wiley-Liss,lnc.
引用
收藏
页码:724 / 726
页数:3
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