An efficient approach to access 2,5-disubstituted 1,3,4-oxadiazoles by oxidation of 2-arenoxybenzaldehyde N-acyl hydrazones with molecular iodine
Citation
Başpınar Küçük, H., Alhonaish, A., Yıldız, T. ve Güzel, M. (2022). An efficient approach to access 2,5-disubstituted 1,3,4-oxadiazoles by oxidation of 2-arenoxybenzaldehyde N-acyl hydrazones with molecular iodine. ChemistrySelect, 7(26). http://doi.org/10.1002/slct.202201391Abstract
An oxidative cyclization of 2-arenoxybenzaldehyde N-acyl hydrazones 3 a-o was employed to synthesize new 2,5-disubstituted 1,3,4-oxadiazole compounds 4 a-d, 4 f-i, 4 k-n. This method involves oxidative cyclization of 2-arenoxybenzaldehyde N-acyl hydrazones 3 a-o with molecular iodine mediated catalysis in which potassium carbonate served as a base. Characterization of all the synthesized novel compounds involved, proton and carbon NMR, mass spectrometry, and CHN elemental analysis. The synthesis of novel 2,5-disubstituted 1,3,4-oxadiazoles may display potential to provide pharmacologically important heterocyclic compounds.
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