3-[(1Z)-1-Hydroxy-3-oxobut-1-en-1-yl]-7-methyl-2H,5H-pyrano[4,3-b]pyran-2,5-dione
✍ Scribed by Bouhaine, N. ;Gherrou, A. ;Lee, A. van der
- Publisher
- International Union of Crystallography
- Year
- 2006
- Tongue
- English
- Weight
- 280 KB
- Volume
- 62
- Category
- Article
- ISSN
- 1600-5368
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✦ Synopsis
The molecular structure of the title compound, C 13 H 10 O 6 , contains a cis-enol ring disordered with respect to the position of the hydroxyl proton. The crystal structure contains sheets perpendicular to the bc plane.
📜 SIMILAR VOLUMES
The crystal structure of the title compound, C 23 H 18 N 2 O 2 , contains an intramolecular hydrogen bond that links the ketone and hydroxyl groups.
0 -(4-methyl-1,3-thiazol-5-yl)-2-oxo-2,3,2 0 0 0 ,3 0 0 0 ,5 0 0 0 ,6 0 0 0 ,7 0 0 0 ,7a 0 0 0 -octahydro-1Hindole-3-spiro-3'-1H-pyrrolizin-2 0 0 0 -yl]prop-2-en-1-one
The two pyrrolidine rings in the title compound, C~25~H~22~N~2~O~6~, adopt envelope conformations. Molecules are stabilized by intramolecular O—H...O hydrogen bonds, and linked into centrosymmetric dimers by intermolecular N—H...O hydrogen bonds.
Single-crystal X-ray study T = 298 K Mean (C-C) = 0.006 A R factor = 0.084 wR factor = 0.197 Data-to-parameter ratio = 12.3 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.