Hydrolytic reactivity study of O,O-Diethyl-O-p-NO2-phenyl phosphate ester in buffer media

The organophosphorus compound under study, O, O-diethyl O-p-NO2-phenyl phosphate was synthesized and characterized using suitable spectroscopic techniques. The hydrolysis is performed in the pH range 1.24 to 7.46in the presence of 1% dioxane-water mixture at 98(±0.5)0C. The hydrolytic reactivity study shows pseudo first-order rate coefficients and the maximum rate value was observed at pH 1.24 which is largely contributed by the neutral species only. The bimolecular nature of the present compound is further assisted by temperature, solvent, reagent and concentration effects studies. It is also understood that the hydrolysis is remarkably promoted by the action of nucleophilic fluoride ions [SE2(P)].

Author(s): Brijesh Kumar , SoramIbomcha Singh and C. P. Shind

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