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...

Descripción completa

Detalles Bibliográficos
Autores principales: Geng, Hua-Wei, Wang, Guo-Cai, Li, Guo-Qiang, Jiang, Ren-Wang, Li, Yao-Lan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2011
Materias:
Organic Papers
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
Descripción
Sumario: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.

Ejemplares similares