A mild and transition-metal-free synthesis of β-keto arylthioethers has been developed by the aryne triggered [2,3] Stevens rearrangement of allylthioethers. The key sulfur ylide intermediate for the rearrangement was formed by the S-arylation of allylthioethers with arynes generated from 2-(trimethylsilyl)aryl triflates using CsF. Later, the reaction products are converted into valuable heterocycles
芳烃引发的[2,3]史蒂文斯重排烯丙基
硫醚已开发出温和且无过渡
金属的β-酮芳基
硫醚合成方法。通过使用CsF通过烯丙基
硫醚与由2-(三甲基甲
硅烷基)芳基
三氟甲磺酸酯产生的
芳烃进行S-芳基化反应,形成用于重排的关键
硫磺化物中间体。之后,将反应产物分两步转化为有价值的杂环。