Hexafluoroisopropanol (HFIP)-prompted rearrangement of N-phenoxysulfonamides for the direct assembly of ortho-sulfonamide phenols: A combined experimental and computational study
作者:Yi Wang、Xiaoli Chen、Shuang Lin、Hui Gao、Fu-Xiaomin Liu、Zhi Zhou、Wei Yi
DOI:10.1016/j.tetlet.2021.153601
日期:2022.1
chemistry. Herein an efficient metal-free rearrangement reaction has been developed for the construction of ortho-sulfonamide phenols via HFIP-prompted intramolecular sulfonamide group 1,3-migration. This protocol features mild reaction conditions, broad functional group compatibility and good regioselectivity. Combined experimental mechanistic study and detailed DFT calculations clarified the crucial
邻磺酰胺酚代表了药物和合成化学中一类有吸引力的结构基序。本文开发了一种有效的无金属重排反应,用于通过 HFIP 促进的分子内磺酰胺基团 1,3-迁移构建邻磺酰胺酚。该方案具有反应条件温和、官能团兼容性广、区域选择性好等特点。结合实验机理研究和详细的 DFT 计算,阐明了 HFIP 分子在促进该反应中的关键作用,并且推导出了独特的氢键网络来解释观察到的反应性。