Crystal structure of 4-[(2,4-dichlorophenyl)(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)methyl]-5-methyl-2-phenyl-2,3-dihydro-1H-pyrazol-3-one

Abstract

In the title compound C27H22Cl2N4O2, the pyrazol-5-ol ring makes a dihedral angle of 34.80(11)° with the phenyl ring to which it is bound, while the pyrazolone ring is inclined at 34.34(12)° to its attached phenyl ring. In the crystal, N - H⋯O and C - H⋯Cl hydrogen bonds link the molecules into chains along [010]. Intermolecular π-π interactions are observed between the pyrazolone ring and the phenyl ring bound to the pyrazol-5-ol ring system [centroid-centroid separation = 3.916(2)Å].