Effects of Submicellar Aggregates on Nucleophilic Aromatic Substitution and Addition

摘要

In dilute cationic surfactants (C16H33NR3X; R = Me, Et, n-Pr, n-Bu; X = C1, Br) rate constants of reaction of 2,4-dinitrochloronapthalene with OH(-), N3(-), aniline, or morpholine, and of equilibrium formation of a Meisenheimer complex from 1,3-dinitronaphthalene and OH-, go through double rate maxima with increasing surfactant. The first maximum is ascribed to reaction in submicellar aggregates and the second to reaction in normal micelles.