In the title compound, C23H19NO2, an oxazine Mannich base derivative, the oxazine ring has a half-chair conformation. The 2-hydroxynaphthalen-1-yl substituent is placed in an axial position. There is an intramolecular O—H...N hydrogen bond, forming an S(6) graph-set motif. In the crystal, molecules are connected by a pair of C—H...π interactions into an inversion dimer, which is reinforced by another pair of weak C—H...π interactions. The dimers are linked by a π–π interaction [centroid-centroid distance = 3.6268 (17) Å], consolidating a column along the a axis. Furthermore, the columns interact with each other by a weak C—H...π interaction, generating a three-dimensional network.
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Document Type: Research Article
Universidad Nacional de Colombia, Sede Bogotá, Facultad de Ciencias, Departamento de Química, Cra 30 No. 45-03, Bogotá, Código Postal 111321, Colombia
Institut für Anorganische Chemie, J. W. Goethe-Universität Frankfurt, Max-von Laue-Str. 7, 60438 Frankfurt/Main, Germany
January 1, 2015