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Heterogenius Pd-catalyzed Dimerization Reaction



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Solid/Liquid Palladium-Catalyzed Coupling of Haloaryls Using Alcohols as Reducing Agents:  Kinetics and Process Optimization

Casali Institute of Applied Chemistry, Hebrew University of Jerusalem, 91904, Israel, Chemical Engineering Department, University of California at Berkeley, Berkeley, California 94720, U.S.A., and Chemical Engineering Department, Universiteit van Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands
Org. Proc. Res. Dev., 2003, 7 (1), pp 109–114
DOI: 10.1021/op015519+
Publication Date (Web): December 19, 2002
Copyright © 2003 American Chemical Society

Abstract

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Heterogeneous Pd-catalyzed coupling reaction of substituted halobenzenes to biphenyls is performed effectively in different organic solvents using an alcohol as the reducing agent in the presence of a base and a catalytic amount of phase-transfer (PT) agent. The alcohol is oxidized to the respective aldehyde or ketone. Kinetic studies show that the reaction rate equation fits to second order in halobenzene. The effects of reaction temperature, catalyst loading, base concentration, PTC concentration, and alcohol concentration and structure are studied and discussed.

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Article Views: 324 Times
Received 7 December 2001
Published online 19 December 2002
Published in print 1 January 2003
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