Kinetic and Equilibrium Study of the Interaction of N-1-(ethylpropyl)-3,4-dimethyl-2,6-dinitroaniline with Hydroxide Ion.

MIRTHA N. NASETTA; ELBA I. BUJÁN; RITA H. DE ROSSI

JOHN WILEY & SONS LTD

Lugar: LOndres; Año: 1991 vol. 4 p. 277 - 277

he reversible interaction of N-(1-ethylpropyl)-3,4-dimethyl-2,6-dinitroaniline (1) with HO- is characterized by several kinetic processes. The relaxation times of two of them were measured. It is suggested that the faster one is related to the protonation-deprotonation of the 3-methyl group and the value of the protonation rate is 0.19 s-1. The slowest process leads to the dianionic species with maximum absorption at 340 nm where one HO- group adds to the unsubstituted ring position of an anion derived from 1 by deprotonation of either the NH or the 3-methyl group. The rate and equilibrium constants for the formation of this species are reported.