Microwave-Assisted Synthesis and Antibacterial Activity of Some New Flavones and 1, 5-Benzothiazepines

The synthesis of heterocyclic compounds containing flavones (4a-i) and 1,5-benzothiazepines (5a-i) from chalcone derivatives containing 3,4-methylenedioxy phenyl ring using microwave irradiation in 80–97% yield within 2 – 4 min. The work-up is simple, shorter reaction time, increase in reaction rate with better yields. The structures of synthetic compounds have been characterized using IR and ¹H NMR spectral data together with halogen analysis. All synthesized compounds have been screened for their antibacterial activity.