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

✍ Scribed by Wang, Xiangshan ;Zeng, Zhaosen ;Li, Yuling ;Shi, Daqing

Publisher
International Union of Crystallography
Year
2005
Tongue
English
Weight
87 KB
Volume
61
Category
Article
ISSN
1600-5368

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✦ Synopsis

The structure of the title compound, C 13 H 10 O 4 , 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, 1511Chem. 23, -1153]]. As in the present determination, the X-ray analysis revealed that the title compound is in the enol form, which was confirmed by 1 H NMR data. Weak intermolecular C-HÁ Á ÁO interactions connect molecules into a two-dimensional framework.

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