Methyl 4-(2,7-dimethoxy-1-naphthoyl)benzoate
نویسندگان
چکیده
In the title compound, C(21)H(18)O(5), the dihedral angle between the naphthalene ring system and the benzene ring is 86.65 (6)°. The bridging carbonyl C-C(=O)-C plane makes dihedral angles of 83.57 (7) and 20.21 (8)°, respectively, with the naphthalene ring system and the benzene ring. The ester O-C=O plane and the benzene ring are almost coplanar, making a dihedral angle of 3.81 (18)°. The two meth-oxy groups lie essentially in the naphthalene ring plane [C-O-C-C torsion angles = 2.1 (2) and -1.44 (19)°]. In the crystal structure, a centrosymmetric dimer is formed through C-H⋯O bonds connecting the 7-meth-oxy group and the carbonyl O atom of the ester group. The dimers are further linked by C-H⋯O hydrogen bonds between the methoxy-carbonyl group and the bridging carbonyl O atom.
منابع مشابه
2,7-Dimethoxy-1-(2-naphthoyl)naphthalene
In the title mol-ecule, C(23)H(18)O(3), the dihedral angle between the two naphthalene ring systems is 80.44 (4)°. The mean plane of the bridging carbonyl C-C(=O)-C group makes a torsion angle of -68.55 (17)° with the naphthalene system of the 2,7-dimeth-oxy-naphthalene unit and a torsion angle of -9.01 (19)° with the naphthalene ring system of the naphthoyl group. In the crystal, a weak C-H⋯O ...
متن کامل[2,7-Dimethoxy-8-(2-naphthoyl)naphthalen-1-yl](naphthalen-2-yl)methanone
The mol-ecule of the title compound, C(34)H(24)O(4), possesses crystallographically imposed twofold C(2) symmetry. The two 2-naphthoyl groups at the 1- and 8-positions of the central naphthalene ring are aligned almost anti-parallel [5.21 (5)°]. The dihedral angle between the central 2,7-dimeth-oxy-naphthalene unit and the terminal naphthyl groups is 75.13 (4)°. In the crystal, weak C-H⋯O hydro...
متن کامل2-(2,7-Dimethoxy-1-naphthoyl)benzoic acid
In the title compound, C(20)H(16)O(5), the dihedral angle between the naphthalene ring system and the benzene ring is 67.43 (5)°. The bridging carbonyl C-C(=O)-C plane makes dihedral angles of 82.64 (6) and 41.79 (7)°, respectively, with the naphthalene ring system and the benzene ring. The dihedral angle between the carb-oxy O-C(=O)-C plane and the benzene ring is 36.38 (7)° and that between t...
متن کاملMethyl (E)-3,5-dimethoxy-2-{[2-(4-methoxybenzoyl)hydrazin-1-ylidene]methyl}benzoate
In the title compound, C(19)H(20)N(2)O(6), the azomethine [C=N = 1.269 (2) Å] double bond adopts an E conformation and the dihedral angle between the planes of the benzene rings is 17.41 (11)°. In the crystal, inversion dimers linked by pairs of N-H⋯O hydrogen bonds generate R(2) (2)(16) loops. The dimers are connected by C-H⋯O and C-H⋯N hydrogen bonds, forming sheets lying parallel to (100).
متن کامل(4-Bromophenyl)(2,7-dimethoxy-1-naphthyl)methanone
In the title compound, C(19)H(15)BrO(3), the dihedral angle between the naphthalene ring system and the benzene ring is 72.02 (9)°. The bridging carbonyl C-C(=O)-C plane makes dihedral angles of 70.88 (10) and 1.87 (12)°, respectively, with the naphthalene ring system and the benzene ring. In the crystal, two types of weak inter-molecular C-H⋯O inter-actions and a short Br⋯C contact [3.345 (2) ...
متن کامل