Kinetics of Oxidation of Aromatic Aldoximes by Pyridinium Fluorochromate

Abstract

Kinetics of the oxidation of benzaldoxime and its para-substituted derivatives such as p-hydroxy benzaldoxime, p-chloro benzaldoxime, p-nitro benzaldoxime by pyridinium fluorochromate have been studied at 30 ºC. The product analysis indicates that the reaction is oxidative hydrolysis. The rate increases with the increase in concentration of hydrogen ions. The first order rate dependence on the substrates. The effect of temperature, solvent, perchloric acid and sodium perchlorate has been studied. The activation energy and other thermodynamic parameters are determined.