Reactions of 4-nitroso-1,2,4-triazine with derivatives of hydrazine

The action of hydrazine on 4-nitroso-6-phenyl-1,2,4-triazine-3(2H)-thione-5-one results in the cleavage of the nitroso group. The action of phenylhydrazine results in the reduction of the double bond in the triazine ring together with the cleavage of the nitroso group. The spectral characteristics of the compounds are considered, and the reaction mechanism is proposed.Sumy State University, Sumy, 244007. Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 10, pp. 1421–1423, October, 1996. Original article submitted May 20, 1996.