Location of Repository

Oxidation of methionine by tetraethylammonium chlorochromate in non-aqueous media – A kinetic and mechanistic study

By S. Sheik Mansoor and S. Syed Shafi

Abstract

The kinetics of oxidation of methionine (Met) by tetraethylammonium chlorochromate (TEACC) in dimethyl sulfoxide (DMSO) leads to the formation of the corresponding sulfoxide. The reaction is first order each in Met and TEACC. The reaction is catalyzed by hydrogen ions. The hydrogen ion dependence has the form : kobs = a + b [H+]. The reaction rate has been determined at different temperatures and activation parameters are calculated. The solvent effect has been analyzed using Kamlet’s multi parametric equation. A correlation of data with Kamlet–Taft solvatochromic parameters (α, β, π∗) suggests that the specific solute–solvent interactions play a major role in governing the reactivity. The reaction does not induce polymerization of acrylonitrile. A suitable mechanism has been proposed

Topics: Methionine, Tetraethylammonium chlorochromate, Kinetics, Solvent effect, Oxidation, Chemistry, QD1-999
Publisher: Elsevier
Year: 2015
DOI identifier: 10.1016/j.arabjc.2011.01.031
OAI identifier: oai:doaj.org/article:d3204a41a7554ba79d71de8ea4f11173
Journal:
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • https://doaj.org/toc/1878-5352 (external link)
  • http://www.sciencedirect.com/s... (external link)
  • https://doaj.org/article/d3204... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.