Cyclodextrin - Surfactant Mediated Reactions

Cyclodextrins have been frequently used as microreactors, which can catalyse or inhibit organic reactions by including the substrate in their cavity. This paper describes our latest results pertaining to the effect of β-cyclodextrin on the behaviour of aqueous systems containing three cationic surfactants by studying the alkaline hydrolysis of N-phenylbenzohydroxamic acid. The association equilibrium constants were obtained from the kinetic data. The kinetic results have been interpreted in terms of the micellar pseudo-phase ion exchange model that takes into account the formation of CD-surfactant and CD-substrate complexes.