(Z)-3-Methyl-1-phenyl-4-[(p-tolyl)(p- tolylamino) methylidene]-1H-pyrazol- 5(4H)-one

Abstract

In the title molecule, C25H23N3O 2, the pyrazole ring forms dihedral angles of 28.56 (7), 80.35 (7) and 31.99 (7)° with the phenyl ring, the p-tolyl ring and the p-tolylamino ring, respectively. The N - H group attached to the exocyclic C=C bond is in a syn arrangement with respect to the C=O bond of the pyrazolone group and an intramolecular N - H·O hydrogen bond is observed. In the crystal, weak C - H·π interactions link molecules along [100].