The effect of the nature of the head group on the micellar effects of functional/cationic co-micelles in acyl transfer reactions

The reactivity of co-micelles of functional/cationic surfactants functional surfactants-1-cetyl-3-(2-hydroxyiminopropyl)-, 1-cetyl-3-(2-amino-2-hydroxyiminoethyl)-, and 1-cetyl-3-(2-hydroxyaminoethyl-2-onyl)imidazolium chlorides, cationic surfactants-1-cetyl-3-methylimidazolium and cetyltrimethyl-ammonium chlorides] toward the 4-nitrophenyl esters of diethylphosphoric, diethylphosphonic, and toluenesulfonic acids was investigated. It was shown that the nucleophilicity of the functional groups in the surfactant does not undergo substantial changes with variation in the nature of the head group of the cationic surfactant and the fraction of functional detergent in the co-micelle. This makes it possible to create systems that decompose organophosphorus substrates unusually quickly even with small contents of the functional surfactant. __________ Translated from Teoreticheskaya i éksperimental’naya Khimiya, Vol. 43, No. 1, pp. 30–37, January–February, 2007.