摘要:
Base catalyzed condensation of 1 with substituted o-hydroxy acetophenone gives 3-(1-4-(pyridin-2-yl)benzyl)-3-phenyl-1H-pyrazol-4-yl)-1-(2-hydroaryl)prop-2-en-1-one 2 on oxidative cyclization with DMSO-I-2 gives 2-(1-(4-(pyridine-2-yl)benzyl)-3-pheny]-1H-pyrazol-4-yl)-substituted-4H-chromon-4-one 3. Compound 2 on condensation with 2-aminothiophenol gives 2-(-2-(1-(4-(pyridine-2-yl)benzyl)-3-phenyl-1H-pyrazol-4-yl)-2,3-dihydrobenzo[1,4]thiazepin-4yl)substituted phenol 4. Compounds 3 and 4 are prepared by conventional and microwave irradiation and characterized by IR and H-1 NMR. These compounds were tested for their antimicrobial activities.