Cationic planar chiral palladium PS complexes as highly efficient catalysts in the enantioselective ring opening of oxa- and azabicyclic alkenes

被引：87
|
作者：
Cabrera, S [1 ]
Arrayás, RG [1 ]
Carretero, JC [1 ]
机构：
[1] Univ Autonoma Madrid, Fac Ciencias, Dept Quim Organ, E-28049 Madrid, Spain
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2004年 / 43卷 / 30期
关键词：
alkenes; asymmetric catalysis; ferrocenyl ligands; phenylsilyl; palladium; S ligands;
D O I：
10.1002/anie.200460087
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Open plan: Cationic methylpalladium(II) complexes of planar chiral Fesulphos ligands (Fesulphos = 1-phosphanyl-2-sulfenylferrocene) show excellent performance in the alkylative ring opening of oxa- and azabicyclic alkenes with dialkyl zinc reagents (see scheme, Cy = cyclohexyl, ArF = 3,5-bis (trifluoromethyl)phenyl). Catalyst loadings as low as 0.5 mol% are normally sufficient to achieve high enantioselectivities (94- > 99% ee).
引用
收藏
页码：3944 / 3947
页数：4
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