Reactive micelles: nitroso group transfer from N‐methyl‐N‐nitroso‐p‐toluenesulfonamide to amphiphilic amines

The reactivity of N‐methyl‐N‐nitroso‐p‐toluene sulfonamide (MNTS) towards n‐alkylamines in water and in micellar aggregates was studied. Kinetic constants in both media were obtained. The pseudophase micellar model allows a satisfactory prediction of the experimental behaviour in all cases. The value obtained for the micellar pseudophase rate constant, k , is lower than that in bulk water. The increase in the observed rate constant, ko, with n‐alkylamine concentration is due to an increase in the local concentration of reactants in the micellar surface. The differences between kw and k values is due to the polarity of micellar pseudophase being lower than that in bulk water.