title: Ethyl 2,4-dimethyl-pyrido[1,2-a]benz-imidazole-3-carboxyl-ate.
abstract: The title compound, C(16)H(16)N(2)O(2), was synthesized using a novel tandem annulation reaction between 1-(1H-benzo[d]imidazol-2-yl)ethanone and ethyl (E)-4-bromo-but-2-enoate under mild conditions. The dihedral angles formed by the mean plane of the five-membered imidazole ring with the dihydro-pyridin and benzene rings are 1.54 (9) and 1.85 (9)°, respectively.
authors.affiliation: School of Chemistry and Chemical Engineering, Taishan Medical University, Tai an 271016,  People's Republic of China.
authors.forename: Ai Guo
authors.initials: AG
authors.lastname: Zhu
authors.forename: Zhuo Ming
authors.initials: ZM
authors.lastname: Ma
authors.forename: Lin Jie
authors.initials: LJ
authors.lastname: Li
authors.forename: Tian Tian
authors.initials: TT
authors.lastname: Wei
authors.forename: Yan Qing
authors.initials: YQ
authors.lastname: Ge