5,3′-Dihydroxy-3,6,7,4′-tetramethoxyflavone

被引：4
|
作者：
Asker, Erol [1 ]
Akin, Sebahat
Hokelek, Tuncer
机构：
[1] Balikesir Univ, Necatibey Fac Educ, TR-10100 Balikesir, Turkey
[2] Balikesir Univ, Dept Chem, TR-10145 Cagis Balikesir, Turkey
[3] Hacettepe Univ, Dept Phys, TR-06800 Beytepe, Turkey
来源：
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS | 2006年 / 62卷
关键词：
D O I：
10.1107/S1600536806033630
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
The title compound [systematic name: 5-hydroxy-2-(3-hydroxy-4-methoxyphenyl)-3,6,7- trimethoxychromen-4-one (casticin)], C19H18O8, was isolated from the seeds of Vitex agnus-castus L. The fused chromene ring system and the benzene ring bonded to it are close to coplanar, with a dihedral angle between their respective mean planes of 8.30 ( 12)degrees. The two hydroxy H atoms are involved in intramolecular O - (HO)-O-... hydrogen bonding. Intermolecular O - (HO)-O-... and C - (HO)-O-... hydrogen bonds and pi-pi interactions help to stabilize the crystal structure.
引用
收藏
页码：O4159 / O4161
页数：3
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