4, 5-Dibromo-1H-1, 2, 3-triazole was synthesised by various routes and reacted with chloromethyl methyl ether (N-1/2), methyl chloroformate (N-1), benzyl chloride (N-1), 4- methoxybenzyl chloride (N-1), 4-nitrobenzyl chloride (N-1/2) or triphenylmethyl chloride (N- 2) under various conditions, to give isolable products substituted at the N-atoms shown in parentheses. 4, 5-Dibromo-l-methoxymethyl-1H-and-2-methoxymethyl-2H 1, 2, 3-triazole ...