Tang Lin, Dai Dongmei, Gong Yanqing, Zhong Jialiang
Acta Crystallogr Sect E Struct Rep Online. 2011 Nov;67(Pt 11):o3129. doi: 10.1107/S1600536811044722. Epub 2011 Oct 29.
The title compound, C(20)H(18)O(6), was prepared from resveratrol {systematic name: 5-[(E)-2-(4-hy-droxy-phen-yl)ethen-yl]ben-z-ene-1,3-diol}, which can be isolated from grapes, through triacetyl-ation with using acetic anhydride in pyridine. The two benzene rings are approximately coplanar, making a dihedral angle of 6.64 (14)°, and the three acet-oxy group are located on the same side of the plane. The skeleton of the compound resembles a table with three legs. In the crystal, mol-ecules are linked via C-H⋯O interactions, forming inversion dimers. These dimers are further linked via C-H⋯O interactions, forming a three-dimensional structure.
标题化合物C(20)H(18)O(6)由白藜芦醇{系统名称：5-[(E)-2-(4-羟基苯基)乙烯基]苯-1,3-二醇}制备而成，白藜芦醇可从葡萄中分离得到，通过在吡啶中用乙酸酐进行三乙酰化反应制得。两个苯环近似共面，二面角为6.64 (14)°，三个乙酰氧基位于平面的同一侧。该化合物的骨架类似于一个有三条腿的桌子。在晶体中，分子通过C-H⋯O相互作用相连，形成反演二聚体。这些二聚体通过C-H⋯O相互作用进一步相连，形成三维结构。
