Acta Cryst. (2005). E61, o2599-o2601  [ doi:10.1107/S1600536805022361 ]

Redetermination of 3-[(Z)-1-hydroxy-3-oxobutenyl]-2H-chromen-2-one at 193 K

X. Wang, Z. Zeng, Y. Li and D. Shi

Abstract: The structure of the title compound, C₁₃H₁₀O₄, which was synthesized by the reaction of salicylaldehyde and 4-hydroxy-6-methyl-2H-pyran-2-one in the presence of triethylbenzylammonium chloride in aqueous media, was previously determined at room temperature [March, Moreno-Manas, Roca, Germain, Piniella & Dideberg (1986). J. Heterocycl. Chem. 23, 1511-1153]. As in the present determination, the X-ray analysis revealed that the title compound is in the enol form, which was confirmed by ¹H NMR data. Weak intermolecular C-HO interactions connect molecules into a two-dimensional framework.

Online 16 July 2005

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