%0 Journal Article %T 9,9-Dimethyl-12-(3-nitrophenyl)-7,8,9,10,11,12-hexahydrobenz[a]acridin-11-one %A Runhong Jia %A Juhua Peng %A Shujiang Tu %J Acta Crystallographica Section E %D 2009 %I International Union of Crystallography %R 10.1107/s1600536809033935 %X The title compound, C25H22N2O3, was synthesized by the reaction of 3-nitrobenzaldehyde, dimedone and 2-naphthylamine in ethanol. In the molecular structure, the cyclohexenone ring adopts an envelope conformation, whereas the piperidine ring has a boat conformation. The crystal packing is stabilized by intermolecular N¡ªH...O hydrogen bonds. %U http://scripts.iucr.org/cgi-bin/paper?S1600536809033935