organic compounds
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The asymmetric unit of the title compound, C20H18N2O2, contains two independent molecules in which the dihedral angles between the naphthalene ring system [r.m.s. deviations = 0.012 (1) and 0.015 (1) Å] and the benzene ring are 71.65 (6) and 74.51 (6)°. In the crystal, pairs of N—HO hydrogen bonds form two independent inversion dimers with graph-set notation R22(14). In addition, each molecule contains an intramolecular O—HN hydrogen bond with an S(6) motif.