Oxidation of Active Methylene Compounds by Pyridiniumbromochromate in Acetic Acid Medium
Author(s): Akanksha Shukla, Vinod Dubey
Publication #: 2403064
Date of Publication: 26.03.2024
Country: India
Pages: 1-7
Published In: Volume 10 Issue 2 March-2024
Abstract
Pyridiniumbromochromate (PBC) in aqueous acetic acid oxidizes active methylene compounds to the corresponding triones. The -dc/dt is proportional to the concentrations of oxidant. Ther reaction is acid catalysed and the acid dependence has the form, kobs = a+b [H+]. The Michaelis-Menten type kinetics was discussed. The data can be correlated with mechanistic pathway involving the intermediate formation of chromite ester in pre-equilibrium in the transition state.
Keywords: acetyl acetone, benzoyl acetone, pyridiniumbromochroamate, oxidation, kinetics.
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