title: N-(1-Naphth-yl)-10H-9-oxa-1,3-diaza-anthracen-4-amine.
abstract: In the mol-ecule of the title compound, C(21)H(15)N(3)O, the 10H-9-oxa-1,3-diaza-anthracene ring system is slightly bent, with dihedral angles of 3.99 (6) and 4.80 (6)° between the pyran ring and the pyrimidine and benzene rings, respectively. This ring system makes a dihedral angle of 85.23 (3)° with the naphthalene plane. In the crystal packing, mol-ecules are linked by N-H⋯N hydrogen bonds into chains along the a axis and these chains are stacked along the b axis. The crystal is further stabilized by weak C-H⋯N and C-H⋯π inter-actions.
authors.forename: Hoong-Kun
authors.initials: HK
authors.lastname: Fun
authors.forename: Suchada
authors.initials: S
authors.lastname: Chantrapromma
authors.forename: Sankappa
authors.initials: S
authors.lastname: Rai
authors.forename: Prakash
authors.initials: P
authors.lastname: Shetty
authors.forename: Arun M
authors.initials: AM
authors.lastname: Isloor