title: 5-[(3,4-Dimethoxy-benzyl)-aminomethyl-ene]-2,2-dimethyl-1,3-dioxane-4,6-dione.
abstract: The title compound, C(15)H(17)NO(6), is approximately planar, with dihedral angles of 3.11 (4) and 2.12 (4)° between the connecting amino-methyl-ene unit and the planar part of the dioxane ring, and between the dimethoxy-benzyl ring and the amino-methyl-ene group, respectively. The dioxane ring exhibits a half-boat conformation, in which the C atom between the dioxane O atoms is 0.5471 (8) Å out of the plane. The mol-ecule has an intra-molecular N-H⋯O hydrogen bond which may stabilize the planar conformation. In the crystal, weak inter-molecular C-H⋯O hydrogen-bonding contacts, result in the formation of sheets parallel to the ab plane.
authors.forename: Rui
authors.initials: R
authors.lastname: Li
authors.forename: Jian-You
authors.initials: JY
authors.lastname: Shi
authors.forename: Zhen-Yu
authors.initials: ZY
authors.lastname: Ding
authors.forename: Yu-Quan
authors.initials: YQ
authors.lastname: Wei
authors.forename: Jian
authors.initials: J
authors.lastname: Ding