Ethyl 2,4-dimethylpyrido[1,2-a]benzimidazole-3-carboxylate
نویسندگان
چکیده
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.
منابع مشابه
Ethyl 5-formyl-2,4-dimethyl-1H-pyrrole-3-carboxylate
The molecule of the title compound, C(10)H(13)NO(3), is approximately planar. A network of N-H⋯O and weak C-H⋯O hydrogen bonds helps to consolidate the crystal structure.
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The title compound, C(10)H(9)NO(3)S, was synthesized by the reaction of benzo[d]isothia-zol-3(2H)-one with ethyl carbonochloridate in toluol. The benzisothia-zolone ring system is approximately planar, with a maximum deviation from the mean plane of 0.020 (1) Å for the N atom.
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In the title compound, C(26)H(22)N(2)O(3), the acenaphthen-1-one ring system is nearly planar and the pyrrolidine ring adopts a distorted envelope conformation. An inter-molecular C-H⋯O hydrogen bond stabilizes the crystal structure.
متن کاملEthyl 5-cyano-4-[2-(2,4-dichlorophenoxy)acetamido]-1-phenyl-1H-pyrrole-3-carboxylate
In the title compound, C(22)H(17)Cl(2)N(3)O(4), the pyrrole ring and the 2,4-dichloro-phenyl group form a dihedral angle of 8.14 (13)°; the phenyl ring is twisted with respect to the pyrrole ring, forming a dihedral angle of 60.77 (14)°. The C=O bond length is 1.213 (3) Å, indicating that the mol-ecule is in the keto form, associated with a -CONH- group, and the amide group adopts the usual tra...
متن کاملEthyl 6-amino-5-cyano-2,4-bis(4-methylphenyl)-4H-pyran-3-carboxylate
In the title compound, C(23)H(22)N(2)O(3), the pyran ring adopts a twisted boat conformation. The tolyl rings and carboxyl-ate group are attached to the pyran ring with torsion angles of -77.1 (2), 59.5 (3) and 17.8 (3)°, respectively. The ethyl group is disordered over two orientations with a site-occupancy ratio of 0.508 (5):0.492 (5). In the crystal, mol-ecules are linked by N-H⋯N and N-H⋯O ...
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عنوان ژورنال:
دوره 68 شماره
صفحات -
تاریخ انتشار 2012