AbstractDeveloped here is a robust electrochemical cross‐coupling reaction between aroyl hydrazine and NH‐sulfoximine via concomitant cleavage and formation of C(sp2)−N bonds with the evolution of H2 and N2 as innocuous by‐products. This sustainable protocol avoids the use of toxic reagents and occurs at room temperature. The reaction proceeds via the generation of an aroyl and a sulfoximidoyl radical via anodic oxidation under constant current electrolysis (CCE), affording N‐aroylated sulfoximine. The strategy is applied to late‐stage sulfoximidation of L‐menthol, (−)‐borneol, D‐glucose, vitamin‐E derivatives, and marketed drugs such as probenecid, ibuprofen, flurbiprofen, ciprofibrate, and sulindac. In addition, the present methodology is mild, high functional group tolerance with broad substrate scope and scalable.
摘要 本研究开发了芳基肼和 NH-亚磺酰亚胺之间的强效电化学交叉偶联反应,该反应通过同时裂解和形成 C(sp2)-N 键,并生成无害的副产物 H2 和 N2。这种可持续的方案避免了有毒试剂的使用,并可在室温下进行。反应在恒流电解(CCE)条件下通过阳极氧化生成一个芳酰基和一个亚磺酰亚胺基,从而得到 N-芳酰基亚磺酰亚胺。该策略适用于 L-薄荷醇、(-)-薄荷醇、D-葡萄糖、维生素-E 衍生物以及丙磺舒、布洛芬、氟比洛芬、环丙沙星和舒林酸等市售药物的后期硫代氧化。此外,本方法性质温和、对官能团的耐受性高、底物范围广且可扩展。