Photocatalytic synthesis of azaheterocycle-fused piperidines and pyrrolidines via tandem difunctionalization of unactivated alkenes
作者:Qun-Huai Zhou、Jia-Ying Dai、Wen-Jing Zhao、Xi-Ya Zhong、Chun-Yang Liu、Weiwei Luo、Zhi-Wei Li、Jiang-Sheng Li、Wei-Dong Liu
DOI:10.1039/d3ob00241a
日期:——
A variety of azaheterocycle-fused piperidines and pyrrolidines bearing CF3 and CHF2 functionalities were obtained using CF3SO2Na and CHF2SO2Na by visible light photocatalysis. This protocol involves a radical cascade cyclization via tandem tri- and difluoromethylation–arylation of pendent unactivated alkenes. Benzimidazole, imidazole, theophylline, purine, and indole serve as applicable anchors, thereby
通过可见光光催化,使用 CF 3 SO 2 Na 和CHF 2 SO 2 Na获得了多种带有 CF 3 和 CHF 2 官能团的氮杂杂环稠合哌啶和吡咯烷。该方案涉及通过未活化的悬垂烯烃的串联三氟甲基化和二氟甲基化芳基化进行自由基级联环化。苯并咪唑、咪唑、茶碱、嘌呤和吲哚作为适用的锚定物,丰富了哌啶和吡咯烷衍生物的结构多样性。该方法具有温和、无添加剂和无过渡金属的条件。