Synthesis of <i>o</i>-Aryloxy Triarylsulfonium Salts via Aryne Insertion into Diaryl Sulfoxides
作者:Xiaojin Li、Yan Sun、Xin Huang、Lei Zhang、Lichun Kong、Bo Peng
DOI:10.1021/acs.orglett.6b03840
日期:2017.2.17
The aryne insertion into “S═O” bond has been validated recently. This technology is elusively applied to the synthesis of thioethers. In contrast to the reported cases, the reaction described furnished o-aryloxy triarylsulfonium salts, in lieu of thioethers, in good to excellent yields. The reaction is also featured by its exquisite regioselectivity, broad substrate scope, and mild conditions (25 °C)
芳烃插入“S═O”键的过程最近得到验证。该技术难以用于合成硫醚。与报道的情况相反,所描述的反应提供了以邻苯二甲氧基三芳基ulf盐代替硫醚,具有良好至优异的收率。该反应还具有出色的区域选择性,广泛的底物范围和温和的条件(25°C)。初步的机理研究表明,该反应可能以连续的[2 + 2]环加成/ O-芳基化/质子化途径进行。