p-(tricyanovinylidene)phenylhydrazones. Nucleophilic attack on carbon-carbon double bonds

摘要

The dispacement of a —CN group inp-(tricyanovinylidene)-phenylhydrazones, induced by amines, is investigated. The rate of the reaction is dependent on the polarity of the solvent and the observed second-order rate coefficientskobs2for the —CN displacement increase with the amine concentration. A X-ray analysis of one of the substituted compounds is also repor