... Journal of Heterocyclic Chemistry: Previous article in issue: An efficient one-pot synthesis of N-(1,3 ... The 1,3,4-thiadiazoles are important bioactive heterocyclic moieties and have been reported to have wide ... d, 1H, Ar H), 7.59 (s, 1H, Ar H), 7.76–7.78 (dd, Ar H, J = 6.81), 12.76 (s ...