Acta Cryst. (2009). E65, o2991  [ doi:10.1107/S1600536809045644 ]

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

C.-L. Xu, N. Yang, G.-Y. Yang, S.-F. Fan and C.-Y. Niu

Abstract: 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-HO hydrogen bonds link two molecules into dimers, and - stacking interactions between inversion-related rings of the coumarin groups [centroid-centroid distance 3.8380 (15) Å with a slippage of 1.535 Å], which connect the dimers into columns extending along [010].

Online 4 November 2009

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