exceptional biocompatibility. The development of novel catalytic mode for Mn is of great significance to advancing organic synthesis. In this study, the first manganese (Mn)-catalyzed [2+2+2] cycloaddition of alkynes is achieved with the aid of visible-light photoredox catalysis. Photoredox catalysis is proposed to promote the transformation by in situ reduction of high-valent Mn(II) complex to Mn(0)
锰 (Mn) 是地球上第三丰富的过渡
金属,以其卓越的
生物相容性而闻名。新型
锰催化模式的发展对于推进有机合成具有重要意义。在这项研究中,借助可见光光氧化还原催化实现了第一个
锰(Mn)催化的
炔烃[2+2+2]环加成反应。提出光氧化还原催化通过将高价 Mn(II) 配合物原位还原为 Mn(0) 物质来促进转化,从而引发反应。此外,还建议采用光氧化诱导的还原消除步骤。该系统的另一个特点是其对末端
炔烃和内部
炔烃(作为二炔的对应物)具有显着的耐受性。