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Title: Aminolysis of substituted phenyl thiolacetates by imidazole
Authors: Ananthakrishnanadar, P
Jeyakumar, T
Issue Date: Jul-1994
Publisher: NISCAIR-CSIR, India
Abstract: A series of m- and p-substituted phenyl thiolacetates have been prepared. The kinetics of aminolysis of these acetates by imidazole have been followed at 20C and an ionic strength of 0.1 mol dm-3 at different pH in water containing traces of dioxan. The non-linear Hammett plot and the nonlinear plot between log k2 and log k(OH) indicate the possibility of two types of mechanism, viz., unassisted nucleophilic substitution for the compounds having electron-withdrawing groups in the leaving moiety and general acid-assisted nucleophilic substitution for the compounds having electron-releasing groups in the leaving moiety.
Page(s): 627-632
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.33A(07) [July 1994]

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