Heterocyclic compounds containing diazo and cyano groups. 1. Diazoacetonitrile derivatives in the synthesis of 5-halo-1H-1,2,3-triazoles

Carbonyl-substituted derivatives of diazoacetonitrile have been obtained by the diazotization of amines and by diazo-group transfer which, under the action of hydrogen halide, have been converted into 4-carbonyl-substituted 5-halo-1H-1,2, 3-triazoles. The structures of these compounds have been confirmed by mass spectrometry and independent synthesis.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 9, pp. 1266–1270, September, 1984.