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In the title compound, C23H19N3O2, the dihedral angles formed by the pyrazolone ring with the three benzene rings are 30.91 (6), 60.96 (4) and 57.01 (4)°. The ligand is in the enamine–keto form and its structure is stabilized by an intramolecular N—H
O hydrogen bond. In the crystal, O—HN hydrogen bonds link molecules into chains parallel to [01-1].
O hydrogen bond. In the crystal, O—HN hydrogen bonds link molecules into chains parallel to [01-1].organic compoundsOpen access
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In the title compound, C11H13NO2, the dihedral angle between the planes defined by the 2-hydroxyphenylamino group and the pent-3-en-2-one mean plane [maximum deviations = 0.0275 (19) and 0.054 (2) Å, respectively] is 31.01 (10)°. There are intramolecular bifurcated N—H(O,O) hydrogen bonds involving the amine NH group and the adjacent carbonyl and hydroxy O atoms. In the crystal, molecules are linked via O—HO hydrogen bonds, forming chains propagating along [100].
(O,O) hydrogen bonds involving the amine NH group and the adjacent carbonyl and hydroxy O atoms. In the crystal, molecules are linked via O—HO hydrogen bonds, forming chains propagating along [100].
