title: NMR spectroscopic structure elucidation of the products of the reaction of 3-(3-aryl-3-oxopropenyl)- chromen-4-ones with 1,2-phenylenediamine.
abstract: The reaction of 3-(3-aryl-3-oxopropenyl)chromen-4-ones with 1,2-phenylenediamine resulted in the unexpected formation of 10a-aryl-1,2,10,10a-tetrahydrobenzo-[4,5]-imidazo[1,2-a]pyridin-3-yl(2-hydroxyphenyl)-1-methanones. Their structure elucidation and complete 1H and 13C assignments have been performed by a combination of various one- and two-dimensional NMR experiments.
authors.affiliation: Institute for General and Analytical Chemistry, Budapest University of Technology and Economics, Szent Gellért tér 4, H-1111 Budapest, Hungary. gabor.toth@mail.bme.hu
authors.forename: Gábor
authors.initials: G
authors.lastname: Tóth
authors.forename: András
authors.initials: A
authors.lastname: Simon
authors.forename: Tímea
authors.initials: T
authors.lastname: Gondos
authors.forename: Albert
authors.initials: A
authors.lastname: Lévai
authors.forename: József
authors.initials: J
authors.lastname: Jekö
authors.forename: Ferenc
authors.initials: F
authors.lastname: Andrási
mesh_terms: D001569:Benzodiazepines / Q000138:chemical synthesis / Q000737:chemistry*; D001578:Benzopyrans / Q000737:chemistry*; D002247:Carbon Isotopes / Q000032:analysis; D006859:Hydrogen / Q000032:analysis; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D010655:Phenylenediamines / Q000737:chemistry*; D013237:Stereoisomerism
chemical_list: D001578:Benzopyrans; D002247:Carbon Isotopes; D010655:Phenylenediamines; D001569:Benzodiazepines; D006859:Hydrogen; C034193:1,2-diaminobenzene