A novel chiral phosphino-phosphaferrocene: Its coordination behavior and application to palladium-catalyzed asymmetric allylic alkylation

被引：62

作者：

Ogasawara, M ^{[1
]}

Yoshida, K ^{[1
]}

Hayashi, T ^{[1
]}

机构：

[1] Kyoto Univ, Dept Chem, Grad Sch Sci, Sakyo Ku, Kyoto 6068502, Japan

来源：

ORGANOMETALLICS | 2001年 / 20卷 / 18期

关键词：

D O I：

10.1021/om010440e

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The synthesis of a novel chiral phosphino-phosphaferrocene ligand is described. The ligand possesses two electronically distinctive donor moieties and behaves either as a monodentate (with a free phosphaferrocene) or a bidentate ligand depending on stoichiometry with a coordinating transition-metal center. In the palladium-catalyzed asymmetric allylic alkylation of 1,3-diphenyl-2-propenyl acetate, a clear correlation was observed between the enantioselectivity of the reaction and a Pd/phosphino-phosphaferrocene molar ratio. With a deficient amount (to the Pd) of the chiral ligand, the highest enantioselectivity (99% ee) was achieved.

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页码：3913 / 3917

页数：5

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