Kinetics and mechanism of the reactions between chloranil and n-butylamine in cyclohexane solution

Abstract

Interaction between chloranil (CA) and n-butylamine (A) at several temperatures has been studied by u.v.–visible spectroscopy. Kinetic and thermodynamic parameters, as well as a mechanism, have been proposed for this reaction. The results indicate the initial formation of charge-transfer complexes between CA and A, in the presence of an excess of amine, which decomposes to give a final product (D)(disubstituted product of CA). The reaction path is autocatalysed by the presence of amine.