rapidly assembled from a simple monocyclic precursor by the strategic use of a high yielding intramolecular Khand cyclization reaction. Further synthetic manipulations provided a concise formal total synthesis of alpha- and beta-cedrene. Reaction: see text.
通过策略性地使用高产率的分子内Khand环化反应,从简单的单环前体中迅速组装了
十六碳烯碳骨架。进一步的合成操作提供了α-和β-
雪松烯的简明正式全合成。反应:见文字。