PHOSPHETANES AS CHIRAL LIGANDS FOR CATALYTIC ASYMMETRIC REACTIONS - HYDROSILYLATION OF OLEFINS

被引:41
作者
MARINETTI, A
RICARD, L
机构
[1] Laboratoire “Hétéroéléments et Coordination”, URA CNRS 1499,DCPH, Ecole Poly technique, Cedex
关键词
D O I
10.1021/om00022a035
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
A simple methodology has been developed for the synthesis of P-menthylphosphetanes having known stereochemistry at several chiral centers, including phosphorus. These new electron-rich chiral phosphines have been tested as ligands in olefin hydrogenation reactions and in the palladium-catalyzed hydrosilylation of styrene and cyclopentadiene. High activity and significant enantiomeric excesses have been obtained when using a 1:1 phosphine/Cl2-Pd(PhCN)2 mixture as the catalyst. Within each set of epimeric phosphetanes, the enantiomeric excesses are highly dependent on the relative configurations of the sequence of chiral centers.
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页码:3956 / 3962
页数:7
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