Kinetics and mechanism between chloranil and s-butylamine in cyclohexane solution

Abstract

The interaction of chloranil (CA) with s-butylamine (A), in cyclohexane solution has been studied by measuring visible and ultraviolet absorption spectra at various temperatures in the range 279–308 K. Kinetic and thermodynamic parameters have been derived and a mechanism has been proposed for this reaction. The results indicate the existence of a charge-transfer complex in the presence of an excess of s-butylamine, which decomposes to give a final product (D: the disubstituted product of CA). The reaction path has been found to be autocatalysed by the presence of the amine.