Journal of Chemical and Pharmaceutical Research (ISSN : 0975-7384)

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Original Articles: 2012 Vol: 4 Issue: 1

Kinetics and Mechanism of the Oxidative Cleavage of Cyclic Ketones by Nicotinium Dichromate Ã?¢Ã?â?¬Ã?â?? Catalysed by 1,10-Phenonthroline

Abstract

The kinetics of the oxidation of cyclic ketones by nicotinium dichromate (NDC), in acetonitrile medium, catalysed by 1,10-phenonthroline has been investigated. The order of reactivity for the cyclic ketones was C8 > C6 > C7 > C5. The reaction shows fractional order dependence with respect to [substrate] and [H+] and first order dependence with respect to [oxidant]. Activation parameters have been evaluated and a suitable mechanism has been proposed.