Synthesis of Functionalized β-Keto Arylthioethers by the Aryne Induced [2,3] Stevens Rearrangement of Allylthioethers
作者:Manikandan Thangaraj、Rahul N. Gaykar、Tony Roy、Akkattu T. Biju
DOI:10.1021/acs.joc.7b00479
日期:2017.4.21
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。