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5-Hydroxy-3,4′,6,7-tetramethoxyflavone
The title compound, C(19)H(18)O(7) [systematic name 5-hydroxy-3,6,7-trimethoxy-2-(4-methoxyphenyl)-4H-1-benzopyran-4-one], is a flavonoid which was isolated from the traditional Chinese medicine Laggera alata. The benzene ring of the benzopyranone unit forms dihedral angles of 1.72 (3) and 3...
| Autores principales: | , , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
International Union of Crystallography
2011
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3201397/ https://www.ncbi.nlm.nih.gov/pubmed/22065506 http://dx.doi.org/10.1107/S160053681103827X |
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| author | Geng, Hua-Wei Wang, Guo-Cai Li, Guo-Qiang Jiang, Ren-Wang Li, Yao-Lan |
| author_facet | Geng, Hua-Wei Wang, Guo-Cai Li, Guo-Qiang Jiang, Ren-Wang Li, Yao-Lan |
| author_sort | Geng, Hua-Wei |
| collection | PubMed |
| description | The title compound, C(19)H(18)O(7) [systematic name 5-hydroxy-3,6,7-trimethoxy-2-(4-methoxyphenyl)-4H-1-benzopyran-4-one], is a flavonoid which was isolated from the traditional Chinese medicine Laggera alata. The benzene ring of the benzopyranone unit forms dihedral angles of 1.72 (3) and 37.39 (5)° with the pyran ring and the substituent benzene ring, respectively. The molecular conformation is stabilized by an intramolecular phenol O—H⋯O(ketone) hydrogen bond. |
| format | Online Article Text |
| id | pubmed-3201397 |
| institution | National Center for Biotechnology Information |
| language | English |
| publishDate | 2011 |
| publisher | International Union of Crystallography |
| record_format | MEDLINE/PubMed |
| spelling | pubmed-32013972011-11-06 5-Hydroxy-3,4′,6,7-tetramethoxyflavone Geng, Hua-Wei Wang, Guo-Cai Li, Guo-Qiang Jiang, Ren-Wang Li, Yao-Lan Acta Crystallogr Sect E Struct Rep Online Organic Papers The title compound, C(19)H(18)O(7) [systematic name 5-hydroxy-3,6,7-trimethoxy-2-(4-methoxyphenyl)-4H-1-benzopyran-4-one], is a flavonoid which was isolated from the traditional Chinese medicine Laggera alata. The benzene ring of the benzopyranone unit forms dihedral angles of 1.72 (3) and 37.39 (5)° with the pyran ring and the substituent benzene ring, respectively. The molecular conformation is stabilized by an intramolecular phenol O—H⋯O(ketone) hydrogen bond. International Union of Crystallography 2011-09-30 /pmc/articles/PMC3201397/ /pubmed/22065506 http://dx.doi.org/10.1107/S160053681103827X Text en © Geng et al. 2011 http://creativecommons.org/licenses/by/2.0/uk/ This is an open-access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited. |
| spellingShingle | Organic Papers Geng, Hua-Wei Wang, Guo-Cai Li, Guo-Qiang Jiang, Ren-Wang Li, Yao-Lan 5-Hydroxy-3,4′,6,7-tetramethoxyflavone |
| title | 5-Hydroxy-3,4′,6,7-tetramethoxyflavone |
| title_full | 5-Hydroxy-3,4′,6,7-tetramethoxyflavone |
| title_fullStr | 5-Hydroxy-3,4′,6,7-tetramethoxyflavone |
| title_full_unstemmed | 5-Hydroxy-3,4′,6,7-tetramethoxyflavone |
| title_short | 5-Hydroxy-3,4′,6,7-tetramethoxyflavone |
| title_sort | 5-hydroxy-3,4′,6,7-tetramethoxyflavone |
| topic | Organic Papers |
| url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3201397/ https://www.ncbi.nlm.nih.gov/pubmed/22065506 http://dx.doi.org/10.1107/S160053681103827X |
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