Kinetic study of the reactions of p-nitrophenyl acetate and p-nitrophenyl benzoate with oximate nucleophiles

Abstract

The reactions of p-nitrophenyl acetate (PNPA) and p-nitrophenyl benzoate (PNPB) with α-nucleophile oximates, that is, butane 2,3-dione monoximate, pralidoximate, and other oximates have been studied in the presence of different cationic surfactants. The first-order rate constant increases with increasing surfactant concentration. The extent of acceleration, is dependent on the head group structure of surfactants. The PNPA is more reactive than PNPB toward all the nucleophiles at higher concentration of surfactants. © 2008 Wiley Periodicals, Inc.