Crystal structure of 4-(4-methoxyphenyl)-4',4'-dimethyl-3-p-tolyl-3',4'-dihydro-1'H,3H-spiro[isoxazole-5,2'-naphthalen]-1'-one

Abstract

In the title compound, C28H27NO3, the cyclohexanone and isoxazole rings have envelope conformations, with the methylene and spiro C atoms as the flaps, respectively. The mean plane of the isoxazole ring is inclined slightly to the p-tolyl ring, making a dihedral angle of 14.20(9)°, and is nearly perpendicular to the mean plane through the tetralone moiety and to the methoxyphenyl ring [dihedral angles = 83.41(8) and 72.12(9)°, respectively]. The crystal packing is stabilized mainly by van der Waals forces.