Amination of N-aryl prolinol via ring expansion and contraction:: Application to the chiral ligand for the catalytic asymmetric reaction

被引:33
|
作者
Mino, T [1 ]
Saito, A [1 ]
Tanaka, Y [1 ]
Hasegawa, S [1 ]
Sato, Y [1 ]
Sakamoto, M [1 ]
Fujita, T [1 ]
机构
[1] Chiba Univ, Dept Appl Chem & Biotechnol, Fac Engn, Inage Ku, Chiba 2638522, Japan
来源
JOURNAL OF ORGANIC CHEMISTRY | 2005年 / 70卷 / 05期
关键词
D O I
10.1021/jo0479967
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Chiral diaminophosphines 4 were prepared from (S)-prolinol-derived aminophosphine oxide 5 by bromination with ring expansion followed by amination with ring contraction and reduction, using trichlorosilane. In the presence of 4 as ligand, palladium-catalyzed asymmetric allylic alkylation of 1,3-diphenyl-2-propenyl acetate (11) with a dialkyl malonate-BSA-LiOAc system was successfully carried out with good enantioselectivities (up to 98% ee).
引用
收藏
页码:1937 / 1940
页数:4
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