A p-TsOH/halotrimethylsilane facilitated cycloketonization of γ-hydroxyl ynones is detailed. This methodology enables the one-step synthesis of polysubstituted 3(2H)-furanone products. It is remarkable that the reaction exhibits excellent regio- and chemoselectivity by the addition of very small quantities of p-toluenesulfonic acid and water.
详细描述了对-TsOH /卤代三甲基
硅烷促进γ-羟基炔酮的环酮化。该方法能够一步合成多取代的 3(2 H )-
呋喃酮产品。值得注意的是,通过添加极少量的
对甲苯磺酸和
水,该反应表现出优异的区域选择性和
化学选择性。