α-Oxides in reactions with nh acids of the heterocyclic series

Alkylation of 3,5-dinitro-1,2,4-triazole with -epoxides in aprotic media gave a number of 1-(2-hydroxyalkyl)-3,5-dinitro-1,2,4-triazoles, which readily undergo intramolecular cyclization with elimination of HNO₂ to give 5,6-dihydrooxazolo[3,2-b]-1,2,4-triazole derivatives.See [1] for communication I.Translated from Khimiya Geterotsiklicheskih Soedinenii, No. 5, pp. 705–707, May, 1975.