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Article info. : 2006; 3(4) (pp 378~386)

 

Kinetics and Mechanism of Oxidation of 4-Oxoacids by N-Bromosuccinimide in Aqueous Acetic Acid Medium

N.A. Mohamed Farook

Department of Chemistry, Khadir Mohideen College, Adirampattinam-614 701, India

(Received 4 January 2006, Accepted 26 September 2006)

Kinetics and mechanism of oxidation of substituted and unsubstituted 4-oxoacids (S) by N-bromosuccinimide (NBS) in aqueous acetic acid medium have been studied potentiometrically. The reaction follows first-order kinetics, each in 4-oxoacids, NBS and H+. The effect of changes in the electronic nature of the substrate reveals that there is a development of positive charge in the transition state. Based on the kinetic results and the product analysis, a suitable mechanism has been proposed for the reaction of NBS with 4-oxoacids.

Keywords: Kinetics, Oxidation, 4-Oxoacids, NBS

 

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