Heterogenous catalysis in fine chemistry: the Heck reaction on Pd/SiO2 catalysts

Heterogenous catalysis in fine chemistry: the Heck reaction on Pd/SiO2 catalysts The preparation conditions to obtain a Pd/SiO2 catalyst effective in the Heck reaction between para-substituted halogenobenzene and alkylacrylate have been studied. The impregnation of SiO2, functionalised with a thiourea derivative, with a Pd(CH3COO)2 solution resulted in an active, but unstable catalyst. The catalyst became stable after calcination, but its activity appeared to be strongly dependent on the calcination temperature. IR spectra of adsorbed CO indicated that such a dependence should result from differences in the surface structure of the supported particles. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Heterogenous catalysis in fine chemistry: the Heck reaction on Pd/SiO2 catalysts

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Publisher
Brill Academic Publishers
Copyright
Copyright © 2003 by VSP 2003
Subject
Chemistry; Inorganic Chemistry; Physical Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1163/156856703764929949
Publisher site
See Article on Publisher Site

Abstract

The preparation conditions to obtain a Pd/SiO2 catalyst effective in the Heck reaction between para-substituted halogenobenzene and alkylacrylate have been studied. The impregnation of SiO2, functionalised with a thiourea derivative, with a Pd(CH3COO)2 solution resulted in an active, but unstable catalyst. The catalyst became stable after calcination, but its activity appeared to be strongly dependent on the calcination temperature. IR spectra of adsorbed CO indicated that such a dependence should result from differences in the surface structure of the supported particles.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Oct 17, 2004

References

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