Synthesis of Some Novel Imidazolinone Derivatives withDibenzo(b,f)azepine Nucleus

Abstract

4-Arylidene-2-phenyl-5-(4H)-oxazolones (1a–j) were prepared by Erlenmeyer condensation. The 4-arylidene 2-phenyl-5-(4H)-oxazolones react with p-phenylene diamine in presence of dry pyridine to give corresponding 3-(4-amino-phenyl)-5-benzylidene-2-substituted phenyl-3,5-dihydro-imidazol-4-one (2a–j); this was further reacted with dibenzo (b,f) azepine-5-carbonyl chloride (3) in basic medium to give dibenzo(b,f)azepine-5-carboxylic acid [4-(4-substituted-5-oxo-2-phenyl-4,5-dihydro-imidazol-1-yl)-phenyl] amide (4a–j). The constitution of the selected products has been supported by elemental analysis, infrared spectra and nothing sup ¹H NMR spectra. The purity of the compounds was checked by thin layer chromatography.