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Title: Kinetics and mechanism of oxidation of some thioacids by quinolinium fluorochromate
Authors: Khurana, Madhu
Sharma, Pradeep K
Banerji, Kalyan K
Issue Date: Nov-1998
Publisher: NISCAIR-CSIR, India
Abstract: The oxidation of thioglycollic, thiolactic and thiomalic acids by quinolinium fluorochromate (QFC) is first order in QFC. The reaction exhibits Michaelis-Menten type of kinetics with respect to the thioacid. The reaction is catalyzed by hydrogen ions. The hydrogen ion dependence has the form: kobs' = a + b [H+]. The oxidation of thiolactic acid has been studied in 19 oragnic solvents. The solvent effect has been analysed using Kamlet's and Swain's multiparametric equations. A mechanism involving the formation of a thioester and its decomposition in the slow step has been proposed.
Page(s): 1011-1015
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.37A(11) [November 1998]

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