This paper describes the reaction of dehydroacetic acid with primary aromatic amines to yield Schiff bases (2a-2g) by using microwave system. Schiff bases irradiated with dimethyl formamide in presence of triethyl amine and chloroacetyl chloride to afford azetidinones (3a-3g) in excellent yields. The products, characterized on the basis of spectral data, have shown moderate to good antimicrobial activity against some bacteria and fungi.
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