The preparation of phosphorus-containing trienes featuring two diastereotopic vinyl moieties followed by a diastereoselective ring-closing metathesis is described. This methodology allowed for the synthesis of novel highly functionalized P-stereogenic heterocycles featuring both an exo- and an endocyclic double bond. An investigation into the factors influencing the diastereochemical outcome of the
描述了以两个非对映异构
乙烯基部分为特征,随后进行非对映选择性闭环复分解的含
磷三烯的制备。该方法学允许合成具有外-和内环双键的新型高度官能化的P-立体异构杂环。还对影响闭环复分解的非对映
化学结果的因素进行了研究,结果表明与
磷结合的双键的几何结构很重要,在这些反应中1,3-立体诱导优于1,4-立体诱导。