Acta Cryst. (2004). E60, o2371-o2373  [ doi:10.1107/S1600536804029289 ]

2-Amino-7-methyl-4-(3,4-methylenedioxyphenyl)-5-oxopyrano[3,2-c]pyran-3-carbonitrile N,N-dimethylformamide solvate

D.-Q. Shi, L.-H. Niu, X.-S. Wang, Q.-Y. Zhuang and Y. Zhang

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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