Recent development of ortho C H functionalization of aryl sulfoxides through [3,3] sigmatropic rearrangement
Abstract Sulfoxide promoted ortho C H functionalization reactions of aromatic compounds have emerged as powerful tools for organic synthesis. Among them, [3,3] sigmatropic rearrangement induced by interrupted Pummerer reaction or electrophilic activation of sulfoxides has proved to be a fruitful strategy due to its versatility and high reaction efficiency. This digest paper mainly focuses on recent progress on C H functionalization reactions of aryl sulfoxides via [3,3] sigmatropic rearrangement of sulfonium tethered intermediates.