7-Benzyl-2,7-diazaspiro[4.4]nonan-1-one

Abstract

In the title compound, C14H18N2O, both the spiro-linked five-membered rings adopt envelope conformations, with a C atom as the flap in one ring and an N atom in the other. The dihedral angle between the two four-atom planes is 80.46 (8)°. In the crystal, the molecules are linked by N—H...O hydrogen bonds to generate C(4) chains propagating in [010].