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A dual-path sequence of first-order reactions the protiodeacylation of acetylpropionylmesitylene

✍ Scribed by Peter H. Gore; Ahmed M. G. Nassar; David N. Waters; Gerry F. Moxon

Publisher
John Wiley and Sons
Year
1980
Tongue
English
Weight
215 KB
Volume
12
Category
Article
ISSN
0538-8066

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✦ Synopsis

Abstract

An example of a sequence of competing first‐order reactions, leading to a common product, has been found for the sulfodeacylation of acetylpropionylmesitylene. The basic reaction scheme is Scheme l
equation image
and a kinetic analysis of the component rate constants allows an estimate to be made of the concentrations of the reactant and products as a function of time. In the present system the total concentration of the intermediates B, C, and D never exceeds 0.26% at 25Β°C, and therefore the kinetics, which were followed spectrophotometrically, were essentially of the conversion of substrate A to the final product E.

The kinetics of protiodeacylation have been measured, over a range of temperatures, of propionyl‐, dipropionyl‐, and acetylpropionylmesitylenes in 89.8% (w/w) sulfuric acid.

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