5,7-Bis(benzyloxy)-4H-benzopyran-4-one
✍ Scribed by Hao, Zhi-Fang ;Xu, Qiang ;Lu, Zhi-Feng ;Li, Jian-Xin
- Book ID
- 104486320
- Publisher
- International Union of Crystallography
- Year
- 2006
- Tongue
- English
- Weight
- 199 KB
- Volume
- 62
- Category
- Article
- ISSN
- 1600-5368
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✦ Synopsis
The title compound, C 23 H 18 O 4 , contains two molecules in the asymmetric unit which differ from each other in the dihedral angles between the benzyl and chromone groups. There are intramolecular and intermolecular C-HÁ Á ÁO interactions as well asstacking interactions in the crystal structure.
📜 SIMILAR VOLUMES
In the crystal structure of the title compound, C 20 H 20 N 2 O 4 , the molecules are linked by a weak intermolecular C-HÁ Á ÁN hydrogen bond. The molecule has crystallographic twofold rotation symmetry.
The title compound, C 17 H 14 O 4 ÁCHCl 3 , was isolated from the rhizomes of Kaempferia parviflora. The benzopyran-4-one ring system and the phenyl substituent are approximately coplanar. The crystal structure is stabilized bystacking interactions between the benzopyran-4-one ring system of inversi