Abstract Alkylation of 3-azido-1, 2, 4-triazole with oxiranes, bromoacetone, and methyl vinyl ketone furnished a mixture of N-substituted 3-and 5-azido-1, 2, 4-triazoles, 3-azido compounds prevailing. The same substrate subjected to heterylation with 3, 5-dinitro-1, 2, 4- triazole derivatives reacted selectively at the N 1 atom, and its bromination afforded 3-azido- 5-bromo-1, 2, 4-triazole..
