Abstract
A convenient one-pot, multi-component and solvent free procedure for the preparation of substituted 2-amino-5-aryl-1,3,4-oxadiazoles has been achieved. The method is a significant improvement over previously reported synthesis. Reaction of acid chlorides with hydrazine hydrate and isothiocynates under microwave-irradiation (MWI) afforded the corresponding 1,3,4-oxadiazole derivatives in high yields with high purity. All synthesized compounds were characterized by FT-IR, proton and carbon NMR, mass spectroscopy and elemental analysis. A possible mechanism is proposed for the cyclodesulfurization based on the results of this study.
Keywords: Catalyst free one pot reaction, microwave irradiation, multi component reaction, oxadiazole, solvent.
Graphical Abstract
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Microwave Technology: Advancements and Applications in Chemistry, Environment and Food Science
Microwave technology has emerged as a transformative tool in various fields, offering unique opportunities for rapid, efficient, and clean processes. This thematic issue aims to encapsulate the latest research, innovative strategies, and progressive methodologies concerning the application of microwave technology in three main areas: Chemistry: Highlighting the advancements in microwave-assisted ...read more
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