title: 3,3-Dimethyl-cis-2,6-di-p-tolyl-piperidin-4-one.
abstract: In the title mol-ecule, C(21)H(25)NO, the piperidine ring adopts a chair conformation. The benzene rings and one of the methyl groups attached to the piperidine ring have equatorial orientations. The dihedral angle between the two benzene rings is 72.53 (9)°. In the crystal, mol-ecules are linked by N-H⋯O hydrogen bonds. Weak C-H⋯π inter-actions involving the benzene rings are also present in the crystal structure.
authors.forename: P
authors.initials: P
authors.lastname: Gayathri
authors.forename: S S
authors.initials: SS
authors.lastname: Ilango
authors.forename: S
authors.initials: S
authors.lastname: Ponnuswamy
authors.forename: A
authors.initials: A
authors.lastname: Thiruvalluvar
authors.forename: R J
authors.initials: RJ
authors.lastname: Butcher