A temperature-controlled mechanism switch between the Al(OTf)3-catalysed direct addition of alcohols or the Ferrier rearrangement reactions in some glycals is presented. The scope and limitations are investigated as are the influence of the stereochemistry and nature of the protecting groups on the glycal substrate.
提出了在Al(OTf)3催化的醇直接添加或某些糖基中的Ferrier重排反应之间的温度控制机制切换。研究了范围和局限性以及糖基上保护基的立体
化学和性质的影响。