The synthesis of several natural products’ frameworks is carried out by means of a diastereoselective intramolecular Pauson–Khand reaction promoted by molecular sieves. Diastereoselectivity is achieved only if a coordinating group is present at a convenient distance from the alkene moiety. Naphthalenes can be obtained directly under refluxing toluene conditions.
几种
天然产物骨架的合成是通过
分子筛促进的非对映选择性分子内Pauson-Khand反应进行的。仅当配位基团存在于距
烯烃部分方便的距离时,才能实现非对映选择性。
萘可以在回流
甲苯条件下直接获得。