Porous magnesia as solid base for ligand-free Heck reaction

被引：9

作者：

Chen, Fengxi ^{[1
]}

Toh, Kelvin ^{[1
]}

Shen, Shoucang ^{[1
]}

Gan, Geok Joo ^{[1
]}

机构：

[1] Inst Chem & Engn Sci, Singapore 627833, Singapore

来源：

CATALYSIS COMMUNICATIONS | 2007年 / 8卷 / 03期

关键词：

Heck reaction; solid base; porous MgO;

D O I：

10.1016/j.catcom.2006.06.032

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：

MgO particles with different morphologies and textural properties are prepared and tested as solid bases for various ligand-free Heck reactions at low Pd loading (0.05 mol%). Moderate (57%) to high (99.5%) conversions have been achieved with fresh porous polyhedral MgO particles. Used MgO particles are recovered by filtration and reactivated by calcination at 500 degrees C in air. The reactivated MgO particles have been used four times as solid base for arylation of styrene with bromobenzene with conversion of 70-86% and turnover number of 1411-1714. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：405 / 409

页数：5

共 14 条

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