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In the title compound, C17H13Cl2N3, the dihedral angle between the pyrazole ring system and 4-chloro­phenyl ring is 26.1 (2)°. The C=N bond linking the two aromatic rings has an E conformation.

In the title compound, C17H12O4, the chromene unit is approximately planar, the maximum deviation from the mean plane being 0.0166 Å. The attached phenyl ring makes a dihedral angle of 53.2 (1)° with the fused ring system. The packing of the mol­ecules in the crystal structure is governed by C—H⋯O and O—H⋯O hydrogen-bonding inter­actions.

Key indicators: single-crystal X-ray study; T = 296 K; mean (C-C) = 0.003 Å; R factor = 0.030; wR factor = 0.075; data-to-parameter ratio = 8.5.In the title compound, C 12 H 10 N 2 O, the dihedral angle between the pyridine ring system and the phenyl ring is 1.8 (1) . There is an intramolecular N-HÁ Á ÁN hydrogen bond between the pyridine N atom and the amide NH function. Related literature

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