Recent development of ortho-C-H functionalization of aryl sulfoxides through [3,3] sigmatropic rearrangement

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 sulfoniumtethered intermediates. (C) 2018 Elsevier Ltd. All rights reserved.