3-(3-Chloro-2-hydroxyphenyl)-1-phenyl-1H-pyrazole-4-carbaldehyde
نویسندگان
چکیده
In the title compound, C(16)H(11)ClN(2)O(2), the pyrazole ring makes dihedral angles of 11.88 (13) and 22.33 (13)° with the 3-chloro-2-hy-droxy-benzene group and phenyl rings, respectively. The phenolic hy-droxy group forms an intra-molecular O-H⋯N hydrogen bond with the imine N atom of the pyrazole unit. The formyl group is virtually coplanar with the pyrazole ring [dihedral angle = 4.5 (19)°] and acts as an acceptor in an intra-molecular C-H⋯O hydrogen bond closing seven-membered ring. In the crystal, adjacent mol-ecules are linked through C-H⋯O hydrogen bonds into infinite chains along the b axis.
منابع مشابه
3-(4-Bromophenyl)-1-(4-chlorobenzyl)-1H-pyrazole-5-carbaldehyde
The title compound, C(17)H(12)BrClN(2)O, was synthesized by oxidation of [3-(4-bromo-phen-yl)-1-(4-chloro-benz-yl)-1H-pyrazol-5-yl]methanol under mild conditions. The pyrazole ring makes dihedral angles of 3.29 (9) and 74.91 (4)°, respectively, with the bromo-phenyl and chloro-phenyl rings.
متن کامل1-Methyl-3-trifluoromethyl-5-[(3-chlorophenyl)sulfanyl]-1H-pyrazole-4-carbaldehyde O-(4-chlorobenzoyl)oxime
In the title compound, C(19)H(12)Cl(2)F(3)N(3)O(2)S, the 3-chloro-phenyl and 4-chloro-phenyl rings form dihedral angles 89.5 (2) and 11.4 (2)°, respectively, with the pyrazole ring. In the crystal, mol-ecules related by translation along the a axis are linked into chains via C-H⋯N hydrogen bonds.
متن کامل(E)-3-Methyl-5-(4-methylphenoxy)-1-phenyl-1H-pyrazole-4-carbaldehyde O-[(2-chloro-1,3-thiazol-5-yl)methyl]oxime
In the title compound, C(22)H(19)ClN(4)O(2)S, the planes of the benzene ring, the substituted phenyl ring and the thia-zole ring make dihedral angles of 18.4 (3), 88.9 (2) and 63.0 (3)°, respectively, with the pyrazole ring.
متن کامل3-(4-Chlorophenyl)-1-phenyl-1H-pyrazole-4-carbaldehyde
In the title compound, C(16)H(11)ClN(2)O, the chloro-substituted phenyl ring is disordered over two positions with refined site occupancies of 0.503 (2) and 0.497 (2). The dihedral angle between the pyrazole and phenyl rings is 7.93 (7)°. The pyrazole ring also forms dihedral angles of 24.43 (9)° and 28.67 (9)° with the disordered chloro-substituted benzene ring. In the crystal, mol-ecules are ...
متن کامل3-(4-Bromophenyl)-1-phenyl-1H-pyrazole-4-carbaldehyde
In the title compound, C(16)H(11)BrN(2)O, the phenyl and chloro-benzene rings are twisted out of the mean plane of the pyrazole ring, forming dihedral angles of 13.70 (10) and 36.48 (10)°, respectively. The carbaldehyde group is also twisted out of the pyrazole plane [the C-C-C-O torsion angle is 7.9 (3)°]. A helical supra-molecular chain along the b axis and mediated by C-H⋯O inter-actions is ...
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