Acta Cryst. (2004). E60, o2359-o2361  [ doi:10.1107/S1600536804029356 ]

2-Amino-4-(4-methoxyphenyl)-5-oxo-4H,5H-pyrano[3,2-c]chromene-3-carbonitrile N,N-dimethylformamide solvate

D.-Q. Shi, N. Wu, Q. Zhuang and Y. Zhang

Abstract: The title compound, C₂₀H₁₄N₂O₄·C₃H₇NO, was synthesized by the reaction of 4-hydroxycoumarin and 4'-methoxybenzylidenemalononitrile catalyzed by KF-montmorillonite. There are two independent molecules in the asymmetric unit, and the amino groups form N-HO hydrogen bonds with N,N-dimethylformamide.

Online 20 November 2004

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