Rate enhancement with a bowl-shaped phosphane in the rhodium-catalyzed hydrosilylation of ketones

被引：56

作者：

Niyomura, O

Tokunaga, M

Obora, Y

Iwasawa, T

Tsuji, Y ^{[1
]}

机构：

[1] Hokkaido Univ, Ctr Catalysis Res, Sapporo, Hokkaido 0600811, Japan

[2] Hokkaido Univ, Grad Sch Sci, Div Chem, Sapporo, Hokkaido 0600811, Japan

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2003年 / 42卷 / 11期

关键词：

homogeneous catalysis; hydrosilylation; ligand effects; P ligands; rhodium;

D O I：

10.1002/anie.200390331

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Up to 154-fold rate enhancement (see picture) and higher yields are achieved with the bowl-shaped triarylphosphane ligand P(tm-tp)3 compared with common phosphane ligands in Rh-catalyzed hydrosilylation of ketones. The superior performance of P(tm-tp)3 over the similar P(tp)3 is apparently related to the deeper bowl formed by the methyl-bearing terphenyl substituents in the former.

引用

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页码：1287 / 1289

页数：3

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