MICELLAR EFFECTS OF DIMERIC CATIONIC SURFACE ACTIVE COMPOUNDS IN ALKALINE HYDROLYSIS OF 4-NITROPHENYL ESTERS OF DIETHYL PHOSPHONIC, DIETHYL PHOSPHORIC AND TOLUENESUOLFONIC ACIDS
Alkaline hydrolysis of acyl substrates (4-nitrophenyl esters of diethylphosphonic, diethyl phosphoric and toluenesulfonic acids) in the presence of dimeric cationic surface-active compound (surfactant) was studied. Nonconventional behavior of micellar effects in ester decomposition ( k obs, s-1: sulfonate > phosphonate phosphate) was examined in terms of «substrate/surfactant structure - micellar catalysis» relationship. An increase in the rate of alkaline hydrolysis in micelles is controlled both by ОН- -ion nucleophilicity and efficiency of substrate solubilization.