Palladium(II) complexes with P,N- and C,N-ligands as catalysts for the Heck reaction

被引：45

作者：

Schultz, T ^{[1
]}

Schmees, N ^{[1
]}

Pfaltz, A ^{[1
]}

机构：

[1] Univ Basel, Dept Chem, CH-4056 Basel, Switzerland

来源：

APPLIED ORGANOMETALLIC CHEMISTRY | 2004年 / 18卷 / 11期

关键词：

homogeneous catalysis; Heck reaction; palladium complexes; palladacycles; iminophosphines;

D O I：

10.1002/aoc.745

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A series of palladium(II) complexes with different Schiff base ligands were synthesized. Phosphine-free Schiff bases derived from benzaldehyde formed cyclometallated complexes, which are air- and moisture-stable and have dimeric, acetate-bridged structures. Monomeric, air- and moisture-stable complexes were obtained with phosphine-containing Schiff bases. The chelating iminophosphine ligands coordinate to palladium via the phosphorus and the nitrogen atom. These complexes were applied as catalysts for the Heck reaction with bromobenzene and styrene. Excellent yields of trans-stilbene were obtained with catalyst loadings of 0.01 mol%. The influence of water on the performance of the catalysts was investigated. Copyright (C) 2004 John Wiley Sons, Ltd.

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页码：595 / 601

页数：7

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