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Nanosized palladium supported on diethylenetriamine modified superparamagnetic polymer composite microspheres: Synthesis, characterization and application as catalysts for the Suzuki reactions

Paper ID Volume ID Publish Year Pages File Format Full-Text
39841 45837 2014 7 PDF Available
Title
Nanosized palladium supported on diethylenetriamine modified superparamagnetic polymer composite microspheres: Synthesis, characterization and application as catalysts for the Suzuki reactions
Abstract

•Fe3O4/P(GMA-AA-MMA) with high saturation magnetization value were prepared.•Diethylenetriamine modified Fe3O4/P(GMA-AA-MMA) was used to support Pd catalyst.•Suzuki reactions of arylbromides with ArB(OH)2 can be conducted by the catalyst.•This magnetic catalyst can be recovered by applying a permanent magnet externally.•Fe3O4/P(GMA-AA-MMA)–Pd showed higher activity than the conventional catalyst.

Superparamagnetic polymer composite microspheres Fe3O4/P(GMA-AA-MMA) prepared by an emulsifier free emulsion polymerization using DPE as free radical control agent were used to support palladium nanoparticles. The magnetic catalyst can provide excellent reactivity in the Suzuki coupling reactions of aryl halides with phenylboronic acids under mild condition (at 80 °C) in EtOH/H2O (1:1) mixture. Furthermore, the novel catalyst can be conveniently recovered by an external magnet field and reused at least five times without significant loss of its catalytic activity.

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Keywords
Superparamagnetic polymer composite microspheres; Suzuki coupling reactions; Palladium; Heterogeneous catalyst.
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Nanosized palladium supported on diethylenetriamine modified superparamagnetic polymer composite microspheres: Synthesis, characterization and application as catalysts for the Suzuki reactions
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 475, 5 April 2014, Pages 249–255
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
You save - $31
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