1,2,3,4,5,6,7,8-Octahydro-3,3,6,6-tetramethylacridine-1,8-dione

Article abstract of DOI:10.1107/S0108270199006149

In the title compound, C₁₇H₂₁NO₂, the central pyridine ring is almost planar and the outer rings are half-chairs. The O atoms of the keto groups deviate significantly from the mean plane passing through their corresponding rings. The molecule contains a pseudo-mirror plane which passes through the central N and C atoms and the molecule is slightly folded along an axis passing through the same atoms. The dihedral angle between the outer rings is 6.5 (2)°. The packing is stabilized by an intermolecular C-H...O hydrogen bond.