Asymmetric hydroformylation of styrene catalyzed by furanoside phosphine-phosphite-Rh(I) complexes

被引：18
|
作者：
Pàmies, O [1 ]
Net, G [1 ]
Ruiz, A [1 ]
Claver, C [1 ]
机构：
[1] Univ Rovira & Virgili, Dept Quim Fis & Inorgan, Tarragona 43005, Spain
来源：
TETRAHEDRON-ASYMMETRY | 2002年 / 12卷 / 24期
关键词：
D O I：
10.1016/S0957-4166(02)00030-7
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A series of phosphine-phosphite ligands, derived from inexpensive D-(+)-xylose, were tested in the Rh-catalyzed asymmetric hydroformylation of styrene. Systematic variation of the phosphite moiety revealed a remarkable effect on the selectivity of the hydroformylation catalysts. High regioselectivities for 2-phenylpropanal (up to 95%) and moderate enantioselectivity were found under mild reaction conditions (25-40degreesC. 25 bar of syn gas). The hydroformylation results are explained by the solution structures of the intermediate species formed under hydroformylation conditions. (C) 2002 Published by Elsevier Science Ltd.
引用
收藏
页码：3441 / 3445
页数：5
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