Synthesis of some new bioactive heterocycles

The book includes four new research projects, namely: 1- Synthesis and biological activities of 7-arylazo-7H-pyrazolo[5,1-c][1,2,4] triazol-6(5H)-ones and 7-arylhydrazono-7H-[1,2,4]triazolo[3,4-b][1,3,4] thiadiazines2- Synthesis and antimicrobial activity of 3,5-disubstituted-1,3,4-thiadiazol-2-ylidene by the intramolecular ring transformation of 1,3,4-oxadiazole 3- A novel synthesis for tetracyclic fused tetrazines and thiadiazines4- A facile one¿pot synthesis of pyrido[3`,2`:4,5]thieno[3,2-d] [1,2,4]triazolo[4,5-a]pyrimidin-5-one