(RS,RS)-5-[Hydroxy(4-methylphenyl)methyl]furan-2(5H)-one
✍ Scribed by Ollevier, Thierry ;Bouchard, Jean-Emmanuel ;Desyroy, Valerie ;Tessier, Christian
- Publisher
- International Union of Crystallography
- Year
- 2007
- Tongue
- English
- Weight
- 349 KB
- Volume
- 63
- Category
- Article
- ISSN
- 1600-5368
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✦ Synopsis
The crystal structure of the racemic title compound, C~12~H~12~O~3~, allowed the determination of the relative configuration at the two stereogenic centers. For the R,R isomer, the O—C—C—O and C—C—C—C torsion angles around the bond between the two methine C atoms are 62.38 (15) and −175.49 (13)°, respectively. The furan and tolyl groups are almost perpendicular, with a dihedral angle of 79.39 (5)°. Strong and linear intermolecular O—H...O hydrogen bonding (H...O = 2.04 Å and O—H...O = 177°) is observed between the hydroxyl group and the C=O oxygen.
📜 SIMILAR VOLUMES
In the title compound, C 12 H 18 O 5 , the ring has a chair conformation, with endocyclic torsion angle magnitudes in the range 47.7 (3)-66.7 (2) . The OH group donates an intermolecular hydrogen bond to a C O group with an OÁ Á ÁO distance of 2.791 (3) A ˚, forming chains. organic papers o2662 Burt
From a hexane solution, the title compound, C 14 H 21 IO 2 S, crystallizes in the centrosymmetric space group Pbca with one molecule in the asymmetric unit. As a result of the bulky substituent, small deviations from ideal bond angles are found for the aliphatic part of the molecule.