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E-Journal of Chemistry
Volume 8 (2011), Issue 2, Pages 479-482
http://dx.doi.org/10.1155/2011/173749

Kinetics of Oxidation of 3-Benzoylpropionic Acid by N-Bromoacetamide in Aqueous Acetic Acid Medium

N. A. Mohamed Farook and G. A. Seyed Dameem

P. G & Research Department of ChemistryKhadir Mohideen College, Adirampattinam-614 701, India

Received 10 September 2010; Accepted 5 December 2010

Copyright © 2011 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The kinetics of oxidation of 3-benzoylpropionic acid (KA) with N-bromoacetamide (NBA) have been studied potentiometrically in 50:50 (v/v) aqueous acetic acid medium at 298 K The reaction was first order each with respect to [KA], [NBA] and [H+]. The main product of the oxidation is the corresponding carboxylic acid. The rate decreases with the addition of acetamide, one of the products of the reaction. Variation in ionic strength of the reaction medium has no significant effect on the rate of oxidation. But the rate of the reaction is enhanced by lowering the dielectric constant of the reaction medium. A mechanism consistent with observed results have been proposed and the related rate law was deduced.