Acta Cryst. (2004). E60, o1745-o1747  [ doi:10.1107/S1600536804022093 ]

Methyl 2-amino-4-(4-nitrophenyl)-5-oxo-5,6-dihydro-4H-pyrano[3,2-c]quinoline-3-carboxylate dimethylformamide solvate

X.-S. Wang, Z.-S. Zeng, D.-Q. Shi, H. Chen, X.-Y. Wei and Z.-M. Zong

Abstract: The title compound, C₂₀H₁₅N₃O₆·C₃H₇NO, was synthesized by the reaction of methyl cyanoacetate, 4-nitrobenzaldehyde and 4-hydroxyquinolin-2-one in EtOH catalysed by KF-alumina, followed by crystallization from dimethylformamide. X-ray analysis reveals that the pyran ring adopts a boat conformation.

Online 18 September 2004

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