Ethyl 4-(4-chlorophenyl)-2-methyl-5-oxo-5,6,7,8-tetrahydroquinoline-3-carboxylate
نویسندگان
چکیده
In the title compound, C19H18ClNO3, the non-aromatic part of the fused ring system adopts an envelope conformation with the central methyl-ene C atom as the flap. The dihedral angle between the pyridine and benzene rings is 56.98 (3)°. In the crystal, mol-ecules are linked into double layers parallel to (100) by a network of weak C-H⋯O inter-actions.
منابع مشابه
Ethyl 5-(4-chlorophenyl)-2-[(Z)-(methoxycarbonyl)methylene]-7-methyl-3-oxo-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate
The title compound, C(19)H(17)ClN(2)O(5)S, was synthesized by the reaction of ethyl 6-(4-chloro-phen-yl)-2-mercapto-4-methyl-1,6-dihydro-pyrimidine-5-carboxyl-ate and dimethyl acetyl-ene-dicarboxyl-ate in methanol. In the mol-ecule, the nearly planar thia-zole ring, with a mean deviation from the plane of 0.0108 (3) Å, is fused with a dihydro-pyrimidine ring in a flattened half-chair conformation.
متن کامل(4R)-Ethyl 4-(4-chlorophenyl)-2-hydroxy-5-oxo-2,3,4,5-tetrahydropyrano[3,2-c]chromene-2-carboxylate. Corrigendum
The absolute configuration in the title of the paper by Wang, Zhang, Xu & Zhang [Acta Cryst. (2010), E66, o217] is corrected.[This corrects the article DOI: 10.1107/S1600536809051976.].
متن کاملEthyl 4-(4-chloroanilino)-1-(4-chlorophenyl)-2-methyl-5-oxo-2,5-dihydro-1H-pyrrole-2-carboxylate
In the title compound, C20H18Cl2N2O3, the dihedral angles between the central 2,5-di-hydro-1H-pyrrole ring and the phenyl rings are 74.87 (9) and 29.09 (9)°. Intra-molecular N-H⋯O and C-H⋯O hydrogen bonds occur. In the crystal, pairs of N-H⋯O hydrogen bonds link adjacent mol-ecules into inversion dimers and form an R 1 (2)(6)R 2 (2)(10)R 1 (2)(6) ring motif through C-H⋯O hydrogen bonds.
متن کاملEthyl 3-(4-chlorophenyl)-1-(2-oxo-2-phenylethyl)-1H-pyrazole-5-carboxylate
In the title compound, C(20)H(17)ClN(2)O(3), the dihedral angles between the pyrazole ring and the substituted and unsubstituted benzene rings are 3.64 (13) and 81.15 (17)°, respectively. Mol-ecules are connected via three pairs of weak hydrogen bonds into a centrosymmetric dimer. The crystal structure is stabilized by inter-molecular C-H⋯O and C-H⋯π inter-actions.
متن کاملEthyl 6-(2-chlorophenyl)-4-methyl-1-(3-oxobutyl)-2-thioxo-1,2,3,6-tetrahydropyrimidine-5-carboxylate
In the title mol-ecule, C(18)H(21)ClN(2)O(3)S, the pyrimidine ring exhibits a half-chair conformation. The ethyl group is disordered between two positions in a ratio 0.74:0.26. In the crystal structure, the mol-ecules are linked into chains along the a axis by N-H⋯O hydrogen bonds.
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عنوان ژورنال:
دوره 69 شماره
صفحات -
تاریخ انتشار 2013