Synthesis of new chiral [2-(1-hydroxyalkyl)pyrrolidino]methylferrocenes and application to the catalytic asymmetric addition of diethylzinc to arylaldehydes

被引:5
|
作者
Xu, CL [1 ]
Wang, MC [1 ]
Hou, XH [1 ]
Liu, HM [1 ]
Wang, DH [1 ]
机构
[1] Zhengzhou Univ, Dept Chem, Zhengzhou 450052, Peoples R China
关键词
chiral [2-(1-hydroxyalkyl)pyrrolidino]methylferrocene; synthesis; asymmetric addition; diethylzinc; arylaldehyde;
D O I
10.1002/cjoc.200591443
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A series of new optically active [2-(1-hydroxyalkyl)pyrrolidino]methylferrocenes were conveniently prepared from commercially available L-proline and ferrocenecarboxylic acid. The crystal structure of key intermediate was obtained. They were then applied to catalyze enantioselective addition of diethylzinc to arylaldehydes with enantioselectivity up to 99%. The effects of the ligand structures on the enantioselectivity were also studied.
引用
收藏
页码:1443 / 1448
页数:6
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