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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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