Heterogeneously catalysed Heck reaction using palladium modified zeolites

被引：133

作者：

Djakovitch, L ^{[1
]}

Koehler, K ^{[1
]}

机构：

[1] Tech Univ Munich, Inst Anorgan Chem, D-85747 Garching, Germany

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 1999年 / 142卷 / 02期

关键词：

Heck reaction; palladium modified zeolite; aryl bromide;

D O I：

10.1016/S1381-1169(98)00292-1

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：

Palladium modified zeolites exhibit a high activity towards the Heck reaction of aryl bromides with styrene for small Pd concentrations (= 0.2 mol%). The catalysts can be easily separated from the reaction mixture and reused without loss in activity. Leaching of active Pd species was observed in dependence on the zeolite structure. The electronic nature of the aryl bromide has a dominating effect on the reaction yield and the results observed are consistent with an oxidative addition of the aryl bromide to a Pd(0) centre via a SNAr route. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：275 / 284

页数：10

共 37 条

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