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Abstract

Some 4-(6-methyl-2-naphthyl)-5,6-dihydro-6-(substituted phenyl)-4H-1,3-oxazine-2- amines have been synthesised by hydroxyapatite catalyzed solvent-free cyclization of 6- methyl-2-naphthyl chalcones and urea under microwave irradiation. The yields of the oxazine were more than 85%. The synthesised oxazine amines have been characterized by their physical constants, analytical and spectroscopic data. The antimicrobial activities of all prepared 4-(6-methyl-2-naphthyl)-5, 6-dihydro-6-(substituted phenyl)-4H-1,3- oxazine-2-amines have been evaluated using Bauer-Kirby disc diffusion method with a variety of bacterial and fungal strains.

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