AbstractThe oxidation of aldo- and keto-phenylhydrazones by tetraamminecopper(2+) bis(permanganate) (TACP), in aqueous acetic acid, proceeds through a mechanism involving the formation of a cyclic activated complex, in the rate-determining step.KeywordsOxidative regenerationhydrazonestetramminecopper (2+) bis(permanganate)kineticsmechanismReferences1. Klobb M.T. , Bull. Soc. Chim. Fr., 1890, 3, 5082. Seferiadis N. , Dubler E. , and Oswald H. R. , Acta Cryst., 1986, C42, 942.3. Kótai L. , Horvath T. , Szentmihalyi K. , and Keszler A. , Trans. Met. Chem., 200, 25, 293.4. Exner O. , Collect. Czech. Chem. Commun., 1966, 31, 3222.5. Lee D. , and Brown K. C. , J. Am. Chem. Soc., 1982, 104, 5076.6. Pavelich W.A. , and Taft R. W , J. Am. Chem. Soc., 1957, 79, 4935.