Photoinduced Radical Cyclization of 1,6‐Diynes: Rapid Access to Highly Substituted Carbocyclic and Heterocyclic Compounds
作者:Mohana Reddy Mutra、Yu‐Ting Chen、Jeh‐Jeng Wang
DOI:10.1002/adsc.202300013
日期:——
sulfonyl radical-triggered cyclization of 1,6-dynes without metals, oxidants, or additives. During the reaction, three new bonds are formed (−SO2−C, C−C, and C−I/C−Se−) under mild conditions, with excellent selectivity. The conversion is temporally and atomically economical and is easy to handle even on a gram scale. Detailed mechanistic studies showed that the reaction proceeds via a radical pathway
我们开发了光诱导磺酰自由基触发的 1,6-达因环化,无需金属、氧化剂或添加剂。反应过程中,在温和条件下形成三个新键(-SO 2 -C、C-C和C-I/C-Se-),具有优异的选择性。这种转换在时间上和原子上都是经济的,即使在克尺度上也很容易处理。详细的机理研究表明,反应通过自由基途径进行。新产品的后续合成转化产生了各种取代化合物。重要的是,我们在铃木反应条件下观察到前所未有的选择性 C-C 单键断裂和硼酸插入。