title: 4-Anilino-1-benzyl-piperidine-4-carbo-nitrile.
abstract: The title mol-ecule, C(19)H(21)N(3), an important precursor in the synthesis of porphyrin-fentanyl conjugates, has its piperidine ring in the chair conformation, with endocyclic torsion-angle magnitudes in the range 53.26 (8)-60.63 (9)°. The C N group is axial, while the CH(2)Ph and NHPh groups are equatorial. The NH group does not engage in strong hydrogen bonding, but forms an inter-molecular N-H⋯N inter-action.
authors.affiliation: Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803-1804, USA.
authors.forename: Kiran K
authors.initials: KK
authors.lastname: Allam
authors.forename: Frank R
authors.initials: FR
authors.lastname: Fronczek
authors.forename: M Graça H
authors.initials: MG
authors.lastname: Vicente