Superparamagnetic polymer composite microspheres supported Schiff base palladium complex: An efficient and reusable catalyst for the Suzuki coupling reactions

被引：65
|
作者：
Yuan, Dingzhong [1 ,2 ]
Chen, Long [2 ]
Yuan, Ligang [2 ]
Liao, Shijun [2 ]
Yang, Mengmei [2 ]
Zhang, Qinghua [2 ]
机构：
[1] E China Inst Technol, State Key Lab Breeding Base Nucl Resources & Envi, Nanchang 330013, Peoples R China
[2] E China Inst Technol, Dept Mat Sci & Engn, Nanchang 330013, Peoples R China
来源：
CHEMICAL ENGINEERING JOURNAL | 2016年 / 287卷
关键词：
Superparamagnetic polymer composite microspheres; Suzuki coupling reactions; Palladium; Heterogeneous catalyst; MESOPOROUS SILICA; HETEROGENEOUS CATALYSIS; MAGNETIC NANOPARTICLE; CARBOCYCLIC CARBENE; PD(II) COMPLEXES; AQUEOUS SOLVENTS; ARYL CHLORIDES; GRAPHENE OXIDE; MIZOROKI-HECK; 3-PHASE TEST;
D O I：
10.1016/j.cej.2015.10.081
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Superparamagnetic polymer composite microspheres Fe3O4/P(GMA-AA-MMA) prepared by soap free emulsion polymerization were used to support Schiff base palladium complex. Fourier transform infrared (FTIR), X-ray diffraction (XRD), transmission electron microscopy (TEM), vibrating sample magnetometer (VSM), X-ray photoelectronic spectrography (XPS) and thermal gravity (TG) studies have been used to characterize the supported magnetic Schiff base catalyst. The magnetic catalyst could provide excellent reactivity in the Suzuki coupling reactions of aryl halides with phenylboronic acids under mild condition. Meanwhile, the supported magnetic catalyst acted as a true heterogeneous catalyst in the Suzuki coupling reactions. Furthermore, the novel catalyst could be conveniently recovered by an external magnet and reused at least seven times without significant loss of its catalytic activity or Pd leaching. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：241 / 251
页数：11
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