SBA-15-functionalized palladium complex partially confined with ionic liquid: an efficient and reusable catalyst system for aqueous-phase Suzuki reaction

被引：55

作者：

Karimi, Babak ^{[1
]}

Zamani, Asghar ^{[1
]}

机构：

[1] IASBS, Dept Chem, Zanjan, Iran

来源：

ORGANIC & BIOMOLECULAR CHEMISTRY | 2012年 / 10卷 / 23期

基金：

美国国家科学基金会;

关键词：

CROSS-COUPLING REACTIONS; SUPPORTED METAL NANOPARTICLES; HETEROGENEOUS CATALYSIS; MOLECULAR-SIEVES; ARYL CHLORIDES; HECK REACTION; RECOVERABLE CATALYSTS; ORGANOBORON COMPOUNDS; MESOPOROUS SILICA; HYDROGENATION;

D O I：

10.1039/c2ob07176b

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A novel SBA-15 functionalized palladium complex partially confined with 1-butyl-3-methylimidazolium hexafluorophosphate ionic liquid (Material 4) was found to be a very efficient and reusable catalyst in the Suzuki-Miyaura coupling reaction of aryl halides including aryl chlorides and heteroaryl halides with different aryl boronic acids under aqueous conditions without any organic co-solvents. Our studies showed that 4 is a more efficient catalyst in comparison with the catalyst not containing IL or catalyst with a higher ratio of IL. The materials were characterized by N-2-sorption analysis, TGA and transmission electron microscopy before and after catalysis. While our studies showed that the catalyst can be successfully recycled and reused in at least 4 reaction runs, in contrast, several poisoning experiments and kinetic studies provide the notion that homogeneous (dissolved) species are responsible for the observed catalysis.

引用

页码：4531 / 4536

页数：6

共 45 条

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