Hitesh Makwana, Yogesh T. Naliapara, Synthesis, Characterization and Biological Evaluation of 2,5-di-Substituted 1,3,4-Oxadiazole Derivatives, Volume 34, International Letters of Chemistry, Physics and Astronomy (Volume 34)
https://www.scipress.com/ILCPA.34.48
Abstract:
    We have reported some novel 1,3,4-oxadiazole synthesized by conventional method .The reaction of 5-bromothiophene-2-carbohydrazide and different benzoic acid derivatives reflux in toluene using phosphorus oxychloride as a catalyst, yielded a series of 2,5-di-substituted 1,3,4-oxadiazole HM-2a to HM-2t. The newly synthesized 2,5-di-substituted 1,3,4-oxadiazole were purified by column chromatography and characterized by IR, Mass, 1H NMR, 13C NMR spectroscopy and elemental analysis. All synthesized compounds were screened for antimicrobial activity using cup plate method. All the compounds showed moderate to good antimicrobial activity and anti fungal activity.
Keywords:
    Antimicrobial Activity, Phosphoric Anhydride, Substituted 1,3,4-Oxadiazoles