Ethyl 6-methyl-3-(2-methylprop-1-enyl)-2-oxo-4-phenyl-1,2,3,4-tetrahydropyrimidine-5-carboxylate
نویسندگان
چکیده
In the mol-ecule of the title compound, C(18)H(22)N(2)O(3), the dihydro-pyrimidinone ring adopts an envelope conformation. The dihedral angle between the phenyl ring and the mean plane through the enamine fragment is 86.04 (7)°. The mol-ecular conformation is stabilized by an intra-molecular C-H⋯O hydrogen bond. In the crystal, inter-molecular N-H⋯O hydrogen bonds link pairs of mol-ecules into centrosymmetric dimers.
منابع مشابه
Ethyl 4-(5-chloro-3-methyl-1-phenyl-1H-pyrazol-4-yl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate
In the title compound, C(18)H(19)ClN(4)O(3), the dihydro-pyrimidin-one ring adopts a flattened boat conformation. The dihedral angle between the phenyl and pyrazole rings is 43.39 (6)°. An intra-molecular C-H⋯O contact generates an S(8) ring motif that stabilizes the mol-ecular conformation and precludes the carbonyl O atom of the ester group from forming inter-molecular inter-actions. Mol-ecul...
متن کاملEthyl 6-methyl-2-oxo-4-phenyl-1,2,3,4-tetrahydropyrimidine-5-carboxylate
The title compound, C(14)H(16)N(2)O(3), belongs to a group of esters of 2-oxo- and 1,2,3,4-tetra-hydro-pyrimidine-5-carboxylic acids, which exhibit a wide spectrum of biological activities. The dihydro-pyrimidine ring adopts a screw-boat conformation. The crystal packing is stabilized by strong N-H⋯O and weak C-H⋯O inter-molecular hydrogen bonds. An intra-molecular C-H⋯O hydrogen bond is also p...
متن کاملEthyl 4-(3-bromophenyl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate
In the title compound, C(14)H(15)BrN(2)O(3), the dihydro-pyrimidin-one ring adopts a boat conformation. In the crystal, adjacent mol-ecules are linked through N-H⋯O hydrogen bonds forming an R(2) (2)(8) ring motif and generating a zigzag chain extending in [010].
متن کاملEthyl 4-(2,4-difluorophenyl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate
In the title compound, C(14)H(14)F(2)N(2)O(3), the dihydro-pyrimidin-one ring adopts a flattened boat conformation. The difluoro-phenyl group is disordered over two orientations with occupancies of 0.544 (3) and 0.456 (3). The methoxy-carbonyl group is disordered over two positions with occupancies of 0.580 (8) and 0.420 (8). In the crystal, mol-ecules are linked into centrosymmetric dimers by ...
متن کاملEthyl 6-methyl-2-oxo-4-[4-(1H-tetrazol-5-yl)phenyl]-1,2,3,4-tetrahydropyrimidine-5-carboxylate–dimethylformamide–water (2/1/1)
The asymmetric unit of the title compound, 2C15H16N6O3·C3H7NO·H2O, contains two independent ethyl 6-methyl-2-oxo-4-[4-(1H-tetra-zol-5-yl)phen-yl]-1,2,3,4-tetra-hydro-pyrim-id-ine-5-carboxyl-ate mol-ecules, in which the dihedral angles between the tetra-zole and benzene rings are 20.54 (12) and 12.13 (12)°. An intra-molecular C-H⋯O hydrogen bond occurs in each mol-ecule. In the crystal, N-H⋯O, N...
متن کامل