Crystal structure of N-[(2-hydroxynaphthalen-1-yl)(4-methylphenyl)-methyl]acetamide

In the title molecule, C20H19NO2, the naphthalene ring system subtends a dihedral angle of 82.50 (7)degrees with the benzene ring and an intramolecular N-H center dot center dot center dot O hydrogen bond closes an S(6) ring. In the crystal, molecules are linked by O-H center dot center dot center dot O hydrogen bonds, which generate C(8) chains propagating in the [010] direction. The crystal structure also features weak pi-pi interactions [centroid-centroid separation = 3.7246 (10) angstrom].