title: 1-[(2-Methyl-8-quinol-yl)amino-methyl-ene]naphthalen-2(1H)-one.
abstract: The mol-ecule of the title compound, C(21)H(16)N(2)O, exists in the keto form and the C=O and N-H bonds are mutually cis in the crystal structure, although an enol form would be possible through tautomerism. The dihedral angle between the quinoline and the naphthalene systems is 22.04 (2)°. A bifurcated intramolecular N-H⋯(O,N) hydrogen bond is present.
authors.affiliation: Department of Chemistry, Okayama University of Science, Ridai-cho, Kita-ku, Okayama 700-0005, Japan.
authors.forename: Kentaro
authors.initials: K
authors.lastname: Takano
authors.forename: Masayuki
authors.initials: M
authors.lastname: Takahashi
authors.forename: Takaaki
authors.initials: T
authors.lastname: Fukushima
authors.forename: Takashi
authors.initials: T
authors.lastname: Shibahara