Nabil M. Hassan and Abdou O. Abdelhamid
A synthesis of 1,4-benzothiazines, triazolo[4,3-a]benzimidazole, thiazoles and 2,3-dihydro-1,3,4-thiadiazoles has been accomplished from the reaction of hydrazonoyl bromide 1 with 2-aminobenzenethiol, benzimidazole-2-thiol, 2-methylsulfanylbenzimidazole, dithiocarbamate and dithiocarbazate.