Synthesis of nitro,nitroso,azo,and azido derivatives of (4-R~1-5-R~2-1,2,3-triazol-1-yl)-1,2,5-oxadiazolesby oxidation and diazotization of the corresponding amines

摘要

Nitro-,nitroso-,and azo-1,2,5-oxadiazoles with 4-R~1-5-R~2-1,2,3-triazol-1-yl substituents were synthesized by oxidation of amino-(1,2,3-triazol-1-yl)-1,2,5-oxadiazoles(aminotri-azolylfurazans).Azido-1,2,5-oxadiazole was prepared by diazotization of amino(triazo-lyl)furazan followed by treatment of the diazonium salt with sodium azide.Depending on the nature of the substituents and the reagent,triazolylfurazans can undergo destruction to give amino-R-furazans(R = NO_2,N_3,aminofurazanylazo),the amino group being formed from the triazole ring.