4-(4-Methyl­phen­yl)-2-(prop-2-yn-1-yl)phthalazin-1(2H)-one

摘要

In the title compound, C18H14N2O, the dihedral angle between the methyl­phenyl ring and the phthalazone ring system (r.m.s. deviation = 0.034 Å) is 53.93 (9)°. In the crystal, mol­ecules are connected by C—H⋯O hydrogen bonds, forming chains along [101]. The chains are linked by π–π inter­actions [centroid–centroid distance 3.6990 (12) Å], forming layers parallel to (10-1).