Ethyl 1-(4-chloro­benz­yl)-3-phenyl-1H-pyrazole-5-carboxyl­ate

In the title compound, C₁₉H₁₇ClN₂O₂, the pyrazole ring makes dihedral angles of 6.97 (5) and 79.25 (1)°, respectively, with the phenyl and chlorophenyl rings, respectively. In the crystal, C—H...O hydrogen bonds are observed.

3-(4-Bromo­phen­yl)-1-(4-chloro­benz­yl)-1H-pyrazole-5-carbaldehyde

The title compound, C₁₇H₁₂BrClN₂O, was synthesized by oxidation of [3-(4-bromo­phen­yl)-1-(4-chloro­benz­yl)-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 bromo­phenyl and chloro­phenyl rings.