2,2-{[2-(Pyridin-2-yl)-1,3-diazinane-1,3diyl]'bis(methylene)}diphenol

The title compound, C23H25N3O2, was obtained as an intermediary in the preparation of non-symmetric tertiary diamines. The molecular structure presents T-shaped spatial form, in which the pyrimidine ring exhibits a chair conformation. The pyridyl ring is almost perpendicular to the phenyl rings with dihedral angles of 80.17 (8) and 76.03 (2)degrees. The phenol and amine groups are involved in two strong intramolecular O-H center dot center dot center dot N interactions. In the crystal, the molecules are stacked along [010]; however, no intermolecular interactions are observed.