作者:Rachelle Quach、Daniel. P. Furkert、Margaret A. Brimble
DOI:10.1021/acs.joc.6b01503
日期:2016.9.16
The first total synthesis of resorcyclic acid lactone spiroketal citreoviranol (1) is described. The synthesis was completed in nine steps and via Sonogashira cross-coupling, gold-catalyzed cyclization, and an unusual base-induced ketalization. The relative and absolute stereochemistry of citreoviranol was unambiguously confirmed using 2D NMR spectroscopy and X-ray crystallography.
描述了间苯二酸内酯螺酮缩醛环戊醇(1)的第一全合成。合成过程分9个步骤完成,并通过Sonogashira交叉偶联,金催化的环化反应和不寻常的碱诱导的缩酮化反应完成。使用2D NMR光谱学和X射线晶体学分析法明确确认了瓜维诺醇的相对和绝对立体化学。