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
收藏
页码：1051 / 1057
页数：7
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