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Ethyl 2-methyl-4-phenyl-pyrido[1,2-a]benzimidazole-3-carboxyl-ate. 2011

Yan Qing Ge, and Hai Yan Ge, and Xiao Qun Cao
School of Chemistry and Chemical Engineering, Taishan Medical College, Tai An, 271016, People's Republic of China.

The title compound, C(21)H(18)N(2)O(2), was synthesized using a novel tandem annulation reaction between (1H-benzimidazol-2-yl)(phen-yl)methanone and (E)-ethyl 4-bromo-but-2-enoate under mild conditions. The dihedral angles between the mean planes of the five-membered imidazole ring and the pyridine, benzene and phenyl rings are 0.45 (6), 1.69 (1) and 70.96 (8)°, respectively. In the crystal, mol-ecules are linked through inter-molecular C-H⋯N hydrogen bonds.

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