Kinetics and Mechanism of Oxidation of Disubstituted Benzaldehydes by Pyridinium Chlorochromate

Abstract

The kinetics of oxidation of benzaldehyde and several disubstitutedbenzaldehydes by pyridiniurn chlorochromate (PCC)have been studied in binary solvent mixture of 50% (v/v) aqueousacetic acid. The reaction is first order each in [aldehyde], [PCC]and [H⁺]. Addition of monomer to the reaction mixture gives apolymer. Activation parameters have been computed and a suitablemechanism has been postulated.