KINETIC AND MECHANISTIC STUDIES IN THE OXIDATIVE REGENERATION OF CARBONYL COMPOUNDS FROM OXIMES BY PYRIDINIUM DICHROMATE

Priyanka Purohit; Pooja Tak; Yashasvi Inaniyan; Pramila Naga

doi:10.55218/JASR.202213408

View Abstract pdf Download pdf

DOI : https://doi.org/10.55218/JASR.202213408

Published May 30, 2022

Priyanka Purohit

Chemical Kinetics Laboratories, Department of Chemistry, J.N.V. University, Jodhpur, Rajasthan, India

Pooja Tak

Chemical Kinetics Laboratories, Department of Chemistry, J.N.V. University, Jodhpur, Rajasthan, India

Yashasvi Inaniyan

Chemical Kinetics Laboratories, Department of Chemistry, J.N.V. University, Jodhpur, Rajasthan, India

Pramila Naga

Chemical Kinetics Laboratories, Department of Chemistry, J.N.V. University, Jodhpur, Rajasthan, India

Abstract

The oxidative deoximination of several aldo- and keto-oximes by pyridinium dichromate (PDC), in dimethylsulphoxide (DMSO), exhibited a first order dependence on PDC. A Michaelis-Menten type kinetics was observed with respect to oximes. The oxidation of ketoximes is slower than that of aldoximes. Aldoximes rates are correlated with Pavelich-Taft DSP model. Small sigma values (+) are the indication of a nucleophilic hit by an oxygen from chromate the carbon atom. The reaction is subject to alkyl group steric obstruction. One of the aldoximes (acetaldoxime) is subjected to the influence of 19 organic solvent media. Multiparametric equations are used to analyze the influence of organic media. Mechanistic pathways engaging the involvement of an intermediary cyclic structure in r.d.s.

Downloads

Download data is not yet available.

How to Cite

Purohit, P., Tak, P., Inaniyan, Y., & Naga, P. (2022). KINETIC AND MECHANISTIC STUDIES IN THE OXIDATIVE REGENERATION OF CARBONYL COMPOUNDS FROM OXIMES BY PYRIDINIUM DICHROMATE. Journal of Advanced Scientific Research, 13(04), 45-50. https://doi.org/10.55218/JASR.202213408