Journal
CHEMICAL ENGINEERING JOURNAL
Volume 287, Issue -, Pages 241-251Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2015.10.081
Keywords
Superparamagnetic polymer composite microspheres; Suzuki coupling reactions; Palladium; Heterogeneous catalyst
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Funding
- Natural Science Foundation of Jiangxi Province [20114BAB213011, 20151BAB203028]
- Jiangxi Provincial Department of Education [GJJ13447]
- Doctoral Scientific Research Foundation of East China Institute of Technology [DHBK1010]
- State Key Laboratory Breeding Base of Nuclear Resources and Environment, East China Institute of Technology [NRE1315]
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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.
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