5‐(Diethylamino)‐2‐[( Z )‐(1‐naphthylimino)methyl]phenol

In the title molecule, C 21 H 22 N 2 O, the angle between the mean planes of the 1‐naphthylimino and 2‐methylyphenyl groups is 63.3 (2)°. The two diethyl extensions from the 5‐diethylamino group are twisted in a + and − antiperiplanar conformation. One of the ethyl arms is disordered over two conformations with occupancies of 0.644 (3) and 0.356 (3). The crystal packing is stabilized by intermolecular C—H...π interactions between π orbitals of the 1‐naphthyl (I/II) rings and H atoms from a nearby benzene ring as well as from an ethyl C atom of an ethylamino group. The molecules are stacked along the b axis in alternate inverted chains with the 1‐naphthyl rings obliquely parallel to the ab face of the unit cell. Intramolecular interactions between the hydroxyl H atom and the imino N atom provide additional conformational stability.