Amidrazones in the synthesis of heterocycles (review)

Data on the synthesis, on the basis of amidrazones, of mono-, di-, tri-, and tetrazoles, diazoles containing boron, oxygen, silicon, phosphorus, and sulfur atoms in the ring, mono-, di-, tri-, and tetrazines, triazepines, and benzotriazepines, as well as a number of condensed heterocyclic derivatives, are systematized.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 7, pp. 867–887, July, 1989.