Water-Medium Organic Reactions on an Active and Easily Recycled Pd(II) Organometallic Catalyst Bonded to Magnetic SiO2@Fe3O4 Support

被引：5

作者：

Chen, Mingzhen ^{[1
]}

Zhang, Fang ^{[1
]}

Li, HeXing ^{[1
]}

机构：

[1] Shanghai Normal Univ, Educ Minist, Key Lab Resource Chem, Shanghai 200234, Peoples R China

来源：

CURRENT ORGANIC CHEMISTRY | 2013年 / 17卷 / 10期

关键词：

Immobilized Pd(II) organometallic catalyst; Fe3O4 microspheres coated with silica layer; Water-medium clean organic reactions; Magnetic separation of catalyst; COMPOSITE MICROSPHERES; REUSABLE CATALYSTS; NANOPARTICLES; SILICA; COMPLEX; METAL;

D O I：

10.2174/1385272811317100007

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A novel Pd(II) organometallic catalyst bonded to magnetic SiO2@Fe3O4 support was synthesized by coordinating Pd( II) with the PPh2-ligand originally grafted onto the silica layer covering the Fe3O4 microspheres. Owing to the high dispersion of Pd( II) active sites, the as-prepared Pd-PPh2-SiO2@Fe3O4 catalyst exhibited comparable activities and selectivities with the PdCl2(PPh3)(2) homogeneous catalyst in various water-medium Suzuki and Sonogashira reactions. The catalyst could be easily recycled by an external magnet and used repetitively for at least 8 times without significant loss of its catalytic activity.

引用

页码：1051 / 1057

页数：7

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