期刊
COMPTES RENDUS CHIMIE
卷 20, 期 2, 页码 107-115出版社
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.crci.2016.06.002
关键词
Palladium nanoparticles; Heterogeneous catalyst; Mizoroki-Heck coupling reaction; Nonfunctional coordination polymer; Functionalized framework
资金
- Sharif University of Technology and Pharmaceutical Sciences Branch-Islamic Azad University
Palladium nanoparticles (Pd-NPs) were supported on functional and nonfunctional Cocoordination polymers (Pd/CoBDCNH2 and Pd/CoBDC). Advanced analytical techniques revealed that Pd-NPs are supported on the external surface of the polymer framework and the functionalized framework possesses effective influence to prevent Pd-NP aggregation. Supported Pd-NPs were effectively applied as heterogeneous recyclable catalysts in the MizorokieHeck C-C cross coupling reactions of iodobenzene and either aromatic or aliphatic terminal alkenes. Catalytic results exhibited that highly dispersed Pd-NPs with low loading (1%) on the functional polymer (Pd/CoBDCNH2) are more effective than aggregated Pd-NPs with high loading (9%) on the nonfunctional polymer (Pd/CoBDC). Both catalysts can simultaneously provide high activity and selectivity to E-coupled products, high efficiency in low amounts, easy separation of heterogeneous catalyst and appropriate performance in the recycling reaction without addition of a reducing agent. (C) 2016 Acadmie des sciences. Published by Elsevier Masson SAS. All rights reserved.
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