The Ni-catalyzed reaction of ortho-fluoro-substituted aromatic amides with alkynes results in C-F/N-H annulation to give 1(2H)-isoquinolinones. A key to the success of the reaction is the use of KOBut or even weak base, such as Cs2CO3. The reaction proceeds in the absence of a ligand and under mild reaction conditions (40-60 °C). Competition experiments and DFT calculations suggest that the pathway
邻
氟取代的芳香酰胺与
炔烃的 Ni 催化反应导致 CF/NH 环化,得到 1(2H)-
异喹啉酮。反应成功的关键是使用 KOBut 或什至弱碱,例如 Cs2CO3。该反应在没有
配体的情况下在温和的反应条件 (40-60 °C) 下进行。竞争实验和 DFT 计算表明,这种 Ni 催化的 CF/NH 环化的途径涉及 NH 去质子化、CF 键的氧化加成、
炔烃的迁移插入和还原消除途径以形成 1(2H)-
异喹啉酮衍
生物。