Acta Crystallographica Section E (Jun 2009)
5-[(3,4-Dimethoxybenzyl)aminomethylene]-2,2-dimethyl-1,3-dioxane-4,6-dione
Abstract
The title compound, C15H17NO6, is approximately planar, with dihedral angles of 3.11 (4) and 2.12 (4)° between the connecting aminomethylene unit and the planar part of the dioxane ring, and between the dimethoxybenzyl ring and the aminomethylene 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 molecule has an intramolecular N—H...O hydrogen bond which may stabilize the planar conformation. In the crystal, weak intermolecular C—H...O hydrogen-bonding contacts, result in the formation of sheets parallel to the ab plane.