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The molecule of the title compound, C(16)H(17)NO(2), adopts the phenol-imine tautomeric form with a strong intramolecular O-H center dot center dot center dot N hydrogen bond and an E conformation with respect to the azomethine C N bond. The dihedral angle between the aromatic rings is 21.23 (9)degrees. The ethyl group is disordered over two orientations with occupancies of 0.598 (6) and 0.402 (6). In the crystal, the molecules are linked into chains along the b axis by C-H center dot center dot center dot pi interactions.