Abstract
A kinetic study of solvent effect on sulfonated resin catalyzed hydrolysis of ethyl propionate has been made in water-acetone, water-dioxane, water-DMF and water-DMSO solvent mixtures of varying compositions, at different temperatures. Specific rate constants (kr) were found to be a first order and decreased with increasing amount of organic co-solvent in the media. The variation in rates as well as the activation parameters have been interpreted on the basis of specific solvation ion and dielectric properties of the medium.
Abstract
Кинетическое исследование эффекта растворителя на гидролиз этилпропионата, катализированный сульфонированными смолами, в смесях растворителей — вода-ацетон, вода-диоксан, водадмф и вода-ДМСО — проводили при различных соотношениях последних и при раздичных температурах. Скорости реакции имеют первый порядок и константа скорости уменьшается с увеличением доли органического компонента в смеси растворителей. Изменения скоростей и параметров активации объясняются специфической сольватацией иона и диэлектрическими свойствами среды.
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Metwally, M.S. Kinetic study of resin catalyzed hydrolysis of ethyl propionate in aqueous-organic systems. React Kinet Catal Lett 47, 319–326 (1992). https://doi.org/10.1007/BF02137667
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DOI: https://doi.org/10.1007/BF02137667