Cinnamyl 2-oxo-2H-chromene-3-carboxyl­ate

The title compound, C19H14O4, was prepared by the reaction of 2-oxo-2H-chromene-3-acyl chloride with cinnamic alcohol. The whole mol­ecule is not planar, the dihedral angle between the planes of coumarin and benzene rings being 13.94 (4)°, but the plane of the coumarin ring and that of the ester group are almost coplanar, making a dihedral angle of 2.9 (1)°. In the crystal structure, weak inter­molecular C—H⋯O hydrogen bonds link two mol­ecules into dimers, and π–π stacking inter­actions between inversion-related rings of the coumarin groups [centroid–centroid distance 3.8380 (15) A with a slippage of 1.535 A], which connect the dimers into columns extending along [010].