Hydrolysis of Several Substituted Methyl Benzoates in the Aqueous Solution
نویسنده
چکیده
-The hydrolysis of several ring substituted methyl benzoates was investigated in aqueous solution over a pH range of 3-10. Both the pH dependence (at pH > 5) and the variation of hydrolysis rates with ring substitution are consistent with a mechanism involving the addition of hydroxide ion to the ester carbonyl group. Extrapolation of the rate data to a pH and temperature that would be consistent with soil and groundwater (pH 8, 10°C) indicate that these esters could have hydrolysis half lives from several months to several years in the environment. Key words--hydrolysis, aqueous, esters, methyl benzoate, pH, linear free energy relationship (LFER), hammett, activation energy, half-life
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