A carbon-carbon coupling reaction catalyzed by a water soluble rhodium catalyst entrapped in mesoporous silica

被引：20

作者：

Handa, P.

Stjerndahl, M.

Holmberg, K.

机构：

[1] Chalmers University of Technology, Department of Chemical and Biological Engineering

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2007年 / 100卷 / 1-3期

关键词：

Carbon-carbon coupling; Heterogenization; Homogeneous catalysis; Mesoporous silica; Rhodium;

D O I：

10.1016/j.micromeso.2006.10.024

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A Heck-type reaction, comprising a carbon-carbon coupling between an arylboronic acid and styrene, has been performed using a water soluble rhodium catalyst entrapped in the water-filled pores of mesoporous silica particles. The catalyst-loaded inorganic particles were dispersed in a non-polar medium, either a solution of the reactants in an aromatic solvent (toluene or p-xylene) or a solvent-free mixture of the reactants using a large excess of styrene. The reaction occurred at the oil-water interface, i.e., at the silica pore openings. The yield obtained was higher than that obtained in the conventional liquid-liquid two-phase system. The major advantage with having the catalyst "heterogenized" by entrapment into the siliceous material is the simplicity of the work-up process. The porous particles, containing the catalyst, are simply removed by filtration after completed reaction. © 2006 Elsevier Inc. All rights reserved.

引用

页码：146 / 153

页数：8

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