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Oxidation of 2-Hydroxypropanoic Acid with N-Chlorosuccinimide in Alkaline Medium: A Kinetic and Mechanistic Study

Raju Anitha Devi, Deivanayagam Easwaramoorthy, Cingaram Ravichandran

Kinetics of oxidation of 2-hydroxypropanoic acid (Lactic acid LA) with N-Chlorosuccinimide(NCS) in a sodium hydroxide solution has been studied at 308 K. The reaction rate shows first-order dependence on [NCS] and zero order with respect to [hydroxy acid]. The rate of the reaction remained constant with increase in [NaOH]. Additions of chloride ions, perchlorate ions and the reduction product of NCS, have no effect on the reaction rate. Variations of ionic strength and dielectric permittivity of the medium have no effect on the rate. Activation parameters have been evaluated. A mechanism consistent with kinetic data is proposed