3-(4-Methoxyphenyl)-1-phenyl-1H-pyrazole-4-carbaldehyde
نویسندگان
چکیده
Four independent mol-ecules comprise the asymmetric unit of the title compound, C(17)H(14)N(2)O(2). The central pyrazoline ring is flanked by an N-bound benzene ring and a C-bound meth-oxy-substituted benzene ring. The greatest difference between the independent mol-ecules is found in the relative orientations of the benzene rings with the range of dihedral angles being 23.59 (6)-42.55 (6)°. In the crystal, extensive C-H⋯O inter-actions link mol-ecules into layers parallel to (02[Formula: see text]) and these are linked by C-H⋯π contacts.
منابع مشابه
Crystal structure of 5-(4-methoxyphenyl)-3-(4-methylphenyl)-4,5-dihydro-1H-pyrazole-1-carbaldehyde
In the title compound, C18H18N2O2, the pyrazole ring has a twisted conformation on the CH-CH2 bond. The tolyl ring and the 4-meth-oxy-phenyl ring are inclined to the mean plane of the pyrazole ring by 4.40 (9) and 86.22 (9)°, respectively, while the two aromatic rings are inclined to one another by 88.75 (9)°. In the crystal, mol-ecules are linked via bifurcated C-H⋯(O,O) hydrogen bonds and C-H...
متن کاملSynthesis and crystal structures of N-substituted pyrazolines.
Four pyrazole compounds, 3-(4-fluorophenyl)-5-phenyl-4,5-dihydro-1H-pyrazole-1-carbaldehyde (1), 5-(4-bromophenyl)-3-(4-fluorophenyl)-4,5-dihydro-1H-pyrazole-1-carbaldehyde (2), 1-[5-(4-chlorophenyl)-3-(4-fluorophenyl)-4,5-dihydro-1H-pyrazol-1-yl]ethanone (3) and 1-[3-(4-fluorophenyl)-5-phenyl-4,5-dihydro-1H-pyrazol-1-yl]propan-1-one (4), have been prepared by condensing chalcones with hydrazin...
متن کامل3-(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 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-Bromophenyl)-1-phenyl-1H-pyrazole-4-carbaldehyde
The asymmetric unit of the title compound, C16H11BrN2O, contains two independent mol-ecules with slightly different geometries. The 4-bromo-benzene ring forms dihedral angles of 26.0 (2) and 39.9 (7)° with the pyrazole ring in the two mol-ecules while the phenyl ring is oriented at 19.7 (5) and 7.3 (0)° with respect to the pyrazole ring.
متن کامل4-[3-(Biphenyl-4-yl)-1-phenyl-4,5-dihydro-1H-pyrazol-5-yl]-3-(4-methoxyphenyl)-1-phenyl-1H-pyrazole dioxane monosolvate
In the title compound, C(37)H(30)N(4)O·C(4)H(8)O(2), the dihedral angle between the pyrazole and dihydro-pyrazole rings is 74.09 (10)°. In the crystal, the components are linked into centrosymmetric tetra-mers (two main mol-ecules and two solvent mol-ecules) by C-H⋯O hydrogen bonds. C-H⋯π and π-π [shortest centroid-centroid separation = 3.6546 (9) Å] inter-actions are also observed.
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