Acta Cryst. (2004). E60, o2371-o2373 [ doi:10.1107/S1600536804029289 ]
Abstract: The title compound, C17H12N2O5.C3H7NO, was synthesized by the reaction of 4-hydroxy-6-methylpyran-2-one and 3,4-methylenedioxybenzylidenemalononitrile in the presence of triethylbenzylammonium chloride in an aqueous medium. The pyranone ring is almost planar, while the pyran ring adopts a boat conformation.
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