D. Shi, L. Niu, Xiang-Shan Wang
Dec 1, 2004
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Journal
Acta Crystallographica Section E-structure Reports Online
Abstract
The title compound, C19H19NO6, was synthesized by the reaction of 4-hydroxy-6-methylpyran-2-one and ethyl 4′-methoxy-2-cyanocinnamate in the presence of triethylbenzylammonium chloride in an aqueous medium. The pyranone ring is almost planar, while the fused pyran ring adopts a flattened boat conformation. The amino group is involved in both intra- and intermolecular N—H⋯O hydrogen bonds.