Experimental

R factor = 0.053; wR factor = 0.153; data-to-parameter ratio = 17.2. In the title molecule, C16H15NO, the tetrahydropyridine ring is in a sofa conformation with the methine C atom forming the flap. The dihedral angle between the benzene rings is 80.85 (8). In the crystal, molecules are arranged in alternating double layers parallel to (100) and are connected along [001] by N—H O hydrogen bonds. In addition, weak C—H interactions are observed. Related literature For applications of quinolines, see: Hepworth (1984). For the synthesis and applications of similar compounds see: Donnelly & Farrell (1990a,b); Chandrasekhar et al. (2007); Kumar et al