A regio- and stereoselective synthesis of the tertiary chloride 7 is described, involving the Lewis acid catalysed addition of the allyl chloride 6 to isobutene as a key step. Acid catalysed cyclisation of 7 yields the damasconoid compounds 12–15.
描述了叔
氯7的区域和立体选择性合成,其中涉及
路易斯酸催化的烯丙基
氯6向
异丁烯的加成作为关键步骤。酸催化的7环化反应生成12-15的镶嵌化合物。