3-Diethylamino-6-[(Z)-(4-hydroxyanilino)methylidene]cyclohexa-2,4-dienone

Abstract

In the molecule of the title compound, C17H20N2O2, the aromatic rings are oriented at a dihedral angle of 6.23 (22)degrees. Intramolecular N-H center dot center dot center dot O hydrogen bonding involving the amine H atom and the carbonyl O atom affects the conformation of the molecule. One of the ethyl arms is disordered over two conformations, with occupancies of 0.59 (2) and 0.41 (2). The crystal packing is stabilized by intermolecular C-H center dot center dot center dot O and O-H center dot center dot center dot O hydrogen bonds, and weak C-H center dot center dot center dot pi interactions.