Abstract
AbstractKinetic measurements of the hydrolysis rates of flamprop‐methyl, flamprop‐ethyl,a flamprop‐isopropyl and benzoylprop‐ethyl have been carried out and the hydrolysis products analysed. The similarity of the data to that obtained from the hydrolysis of alkyl acetates show that these esters are hydrolysed by bimolecular acyl bond fission in both acidic and basic media. No buffer or salt effects on the rates were observed. The hydroxyl ion rates were approximately 10000 times faster than the protoncatalysed rates, so that optimum stability is found in solutions of pH 4. Equations are given to calculate hydrolysis rates when the pH exceeds 4 at ambient temperatures.
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