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Int J Biol Macromol. 2013 Apr;55:240-5. doi: 10.1016/j.ijbiomac.2013.01.016. Epub 2013 Jan 31.

Chitosan microspheres supported palladium heterogeneous catalysts modified with pearl shell powders.

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1
Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, Shaoxing University, 312000, China. zengmf@usx.edu.cn

Abstract

Significant enhancement of the catalytic stability and activity was obtained for the heterogeneous palladium catalyst supported on the shell powders-reinforced chitosan microspheres. For example, over 90% cross-coupling yields were achieved using as low as 0.05 mol% palladium catalyst loading for the Heck-type reaction of iodobenzene with n-butyl acrylate. Such significant enhancement of the catalytic stability and activity can be attributed to the intermolecular interactions of the surface polar molecules of the incorporated shell powders with the surrounding chitosan molecules as well as the deposited palladium species.

PMID:
23376558
DOI:
10.1016/j.ijbiomac.2013.01.016
[Indexed for MEDLINE]
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