Basic zeolites containing palladium as bifunctional heterogeneous catalysts for the Heck reaction

被引：86

作者：

Corma, A ^{[1
]}

García, H ^{[1
]}

Leyva, A ^{[1
]}

Primo, A ^{[1
]}

机构：

[1] Univ Politecn Valencia, CSIC, Inst Tecnol Quim, Valencia 46022, Spain

来源：

APPLIED CATALYSIS A-GENERAL | 2003年 / 247卷 / 01期

关键词：

heterogeneous Heck reaction; basic zeolite; bifunctional catalysis; stilbene formation;

D O I：

10.1016/S0926-860X(03)00060-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

K+ and Cs+ exchanged X zeolite containing PdCl2 catalyzes the Heck reaction of PhI or PhBr with styrene in toluene or polymethylbenzenes without the need of extrinsic base. The reaction is truly heterogeneous and no leaching was observed. The activity of the fresh catalyst can be regained in a large extent upon reactivation with water washings. The unprecedented preferent formation of the 1,1-diphenylethene has been observed using PdCl2-CsX as catalyst, a fact that has been related to the smaller size of the transition state leading to this isomer compared to stilbene. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：41 / 49

页数：9

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