Kinetics of Oxidative Hydrolysis of Oximes of Acetophenone and Para Substituted Acetophenone Oximes by Cr(VI) in Acetic Acid Medium

Abstract

The kinetics of oxidative hydrolysis of acetophenone oxime by Cr(VI) in 10% (v/v) N,N-dimethylformam ide at different concentrations of acetic acid have been investigated. There is an increase (0.5–7.0 M) in the rate upto 3 M acetic acid concentration and slight decrease thereafter. A first order dependence on [oxime] and [HCrO₄] is observed. Effect of substituents gave a negative value (–0.83 for Hammett's reaction constant ρ.