N-Substituted 2, 2, 2-trifluoroethanimidic acid l-methylethylidene hydrazides have been prepared and allowed to react wtih tert-butyl hypochlorite in CH2C1p N-Aryl-, N-alkyl-, and N- (methoxycarbony1) amidrazones 2-4 undergo three types of cyclizations via the initially formed N-chloro intermediates leading to 3-(trifluoro-methyl)-l, 2, 4-benzotriazines 6, 3- (trifluoromethyl)-5-alkyltriazoles 8 and 9, and 3-chloro-3-(trifluoromethyl)-4-
