Ethyl 2-methyl-4-phenyl-pyrido[1,2-a]benzimidazole-3-carboxyl-ate.
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.
School of Chemistry and Chemical Engineering, Taishan Medical College, Tai An, 271016,  People's Republic of China.
Yan Qing
YQ
Ge
Hai Yan
HY
Ge
Xiao Qun
XQ
Cao