The cobalt(I)-catalysed 1,4-hydrovinylation reaction of allyloxytrimethylsilane and allyl alcohol with substituted 1,3-dienes leads to hydroxy-functionalised 1,4-dienes in excellent regio- and diastereoselective fashion. Those 1,4-dienols can be converted into tetrahydrofuran and pyran derivatives under indirect electrochemical conditions generating selenium or iodonium cations. The reactions proceed in good yields and regioselectivities for the formation of single diastereomers.
钴(I)催化的烯丙氧基三甲基硅烷和烯丙醇与取代的1,3-二烯烃发生1,4-羟基加成反应,以极好的区域和对映选择性形成羟基功能化的1,4-二烯烃。这些1,4-二烯醇可以在间接电化学条件下转化为产生硒或碘鎓阳离子的四氢呋喃和吡喃衍生物。这些反应以良好的产率和区域选择性进行,形成单对映异构体。