title: 2,5,11,14-Tetra-oxa-8-aza-dispiro-[13.4.0]nona-deca-15,17,19-triene.
abstract: The title compound, C(14)H(21)NO(4), has been synthesized from o-dihydroxy-benzene by a three-step reaction. There are two chemically equal but crystallographically independent mol-ecules in the asymmetric unit. The crystal packing is governed by C-H⋯O hydrogen bonds and C-H⋯π inter-actions, forming an infinite network.
authors.affiliation: Hebei University of Technology, Tianjin 300130, People's Republic of China.
authors.forename: Quanying
authors.initials: Q
authors.lastname: Gan
authors.forename: Liping
authors.initials: L
authors.lastname: Yang
authors.forename: Peng
authors.initials: P
authors.lastname: Guo
authors.forename: Jin
authors.initials: J
authors.lastname: Yang
authors.forename: Zhongyu
authors.initials: Z
authors.lastname: Duan