The preparation and characterization of some 3-alkyl-4-amino-5-cyanomethyl-4H-1,2,4-triazoles with active methylene groups are described and their structural properties using NMR and IR spectra and elemental analyses are given.

The preparation and characterization of some 3-alkyl-4-amino-5-cyanomethyl-4H-1,2,4-triazoles with active methylene groups are described and their structural properties using NMR and IR spectra and elemental analyses are given.Over the last few decades, there has been considerable interest in the synthesis and characterization of derivatives of 1,2,4-triazoles because of the biological and pharmaceutical properties of this heterocycle1−5. In general, three methods have been developed for the formation of 4-amino-3,5-dialkyl-4H-1,2,4-triazoles. These methods involve either the reactions of carboxylic acids and their functional derivatives with hydrazine hydrate at a high temperature, or the treatment of diacylhydrazines with hydrazine6,7 or, at high yields, the condensation of nitriles with hydrazine in the reaction mixtures containing sulfur or sulfur-containing compounds8−13.