6-[(2,4-Di­methyl­anilino)methyl­idene]-2-hy­droxy­cyclo­hexa-2,4-dienone

In the title compound, C₁₅H₁₅NO₂, the dihedral angle between the aromatic rings is 5.86 (6)°, and an intra­molecular N—H...O hydrogen bond generates an S(6) motif, which helps to stabilize the enamine–keto tautomer. An intra­molecular O—H...O hydrogen bond also occurs. In the crystal, inversion dimers linked by pairs of O—H...O hydrogen bonds generate R₂²(10) loops. A C—H...O inter­action links the dimers into [010] chains and aromatic π–π stacking [centroid–centroid separation = 3.6131 (9) Å] also occurs.