Amination of naphtho [1, 8-] triazine with aqueous hydroxylamine--sulphonic acid gives 1- aminonaphtho-[1, 8-] triazine and 1-amino-8-azidonaphthalene. Amination with ethereal chloramine gives 1-and 2-aminonaphthotriazines and the latter was shown to rearrange to the amino-azide under the conditions of the hydroxylamine