Oxidation of Uncatalyzed Cyclohexanone Oxime by Quinaldinium Fluorochromate [QNFC] in Aqueous Acetic Acid Medium

Abstract

Kinetics of oxidation of [cyclohexanone oxime] by [QNFC] in protic solvent system has been studied at 308 K. The product has been identified as corresponding ketonic group. A first order dependence of the reaction with respect to [QNFC], [cyclohexanone oxime] and [H+]] has been observed. The rate constant increased with increase in the concentration of perchloric acid. The reaction has been found to be catalyzed by H⁺ ions. Increasing the percentage of the acetic acid medium increases the rate. Addition of sodium perchlorate increases the rate of reaction appreciably. No polymerization with acrylonitrile. The reaction has been conducted at four different temperature and the activation parameters were calculated. From the observed kinetic results a suitable mechanism was proposed.