Five membered heterocyclic rings possessing a mixture of different heteroatoms like S, N, O, etc. not only possess
interesting chemical properties but also have a myriad number of biological activities. Of these, 1,3,4-thiadiazole moiety and its
derivatives have gained a deep interest in recent year due to their crucial role in wide variety of drugs, dyes, and other substances
of high interests. The present work is focussed on the different methods of their synthesis.