3,3-Bis[(4-meth-oxy-phen-yl)sulfan-yl]-1-methyl-piperidin-2-one

The piperidone ring in the title compound, C(20)H(23)NO(3)S(2), has a distorted half-chair conformation with the central methyl-ene atom of the propyl fragment lying 0.696 (1) Å out of the plane defined by the other five atoms (r.m.s. deviation = 0.071 Å). One of the S-bound phenyl rings is almost perpendicular to the mean plane through the piperidone ring, whereas the other is splayed [dihedral angles = 71.95 (6) and 38.42 (6)°]. In the crystal, C-H⋯O and C-H⋯π inter-actions lead to the formation of supra-molecular layers in the ab plane.