6′-Methyl-1′,2′,3′,4′-tetra-hydro-spiro- cyclo-hexane-2′-quinazolin-4′-one

The title compound, C14H18N2O, was synthesized by the reaction of cyclo-hexa-none and 2-amino-5-methyl-benzonitrile. In the mol-ecule, the cyclo-hexane ring displays a chair conformation, whereas the 1,3-diaza-cyclo-hexane moiety of the bicyclic system has a sofa conformation with the spiro C atom displaced by 0.603 (2) Å from the rest of the atoms of the 1,3-diaza-cyclo-hexane ring [planar within 0.052 (2) Å]. Mol-ecules are linked into centrosymmetric dimers via N - H⋯O hydrogen bonds.