Acta Cryst. (2012). E68, o148 [ doi:10.1107/S1600536811053530 ]
Abstract: The title compound, C18H20N2O2, was prepared by Mannich-type reaction of phenol, ethane-1,2-diamine and formaldehyde. The heterocyclic rings adopt half-chair conformations. The acyclic methylene groups attached to the N atoms are in an axial position. In the crystal, weak C-HO hydrogen bonds link the molecules into dimers. These dimers are further connected via C-H contacts.
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