Kinetics of oxidation of glycine by pyridinium bromochromate in acetic acid medium

Department of Chemistry, M. L. Sukhadia University, Udaipur-313 00 1, India

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Manuscript received 3 July 2001, revised 7 February 2002, accepted 15 February 2002

Kinetics of oxidation of glycine by pyridinium bromochromate (PBC) have been studied in aquo-acetic acid medium in presence of perchloric acid. The products are ammonia, CO₂ and formaldehyde. The reaction shows first order kinetics in [PBC], inverse order with respect to [H⁺] and Michaelis-Meten type kinetics with respect to Iglycine). The rate of oxidation decreases with increase in dielectric constant of solvent indicating ion-dipole interaction. Activation parameters have been evaluated. Mechanism involving C-C fission has been suggested.