Abstract A variety of triazoles and thiadiazoles linked to the N atom of the phenothiazine framework through a two carbon atom chain has been prepared from the corresponding thiosemicarbazides. The structure of the prepared five membered heterocycle depends on the choice of the appropriate cyclization agent (base or acid). Divers triazoles et thiadiazoles reliés à l'atome d'azote de la phénothiazine par un segment carboné à deux atomes ont ...