An efficient synthesis and antimicrobial evaluation of 5-alkenyl- and 5-styryl-1,2,4-oxadiazoles

Abstract

The cyclodehydration of O-acylamidoximes at room temperature in the superbase system KOH/DMSO represents a simple and efficient way to 5-alkenyl-and 5-styryl-1,2,4-oxadiazoles. This method is suitable for the preparation of 5-(4-vinylphenyl)-1,2,4-oxadiazoles as well. Results of the antimicrobial tests demonstrated that the synthesized compounds exhibit a moderate antimicrobial effect against E.coli, S.aureus and C.albicans strains.