Hydroxide ion catalysed hydrolysis of a series of diaryl phosphates with varying leaving groups, has been studied in water at 390C and an ionic strength of 1.0. Mechanism involves a bimolocular nucleophilic attack of the hydroxide ion concerted with the departure of the leaving group. A linear free energy relationship has been determined with a slope of -0.68 for a logarithmic plot of the second-order rate cosntants for the hydrolysis, against the pK of the leaving groups.
M YOUNAS ,A RAHMAN ,M IQBAL ,
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