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

L.V.S. Prasada Rao*, and S. Brahmaji Rao

Department of Chemistry, Sri Krishnadevaraya University, Anantapur-515 003, India

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.

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  • Asian J. Chem. /
  •  1992 /
  •  4(3) /
  •  pp 421-431