Iron‐Catalyzed, Iminyl Radical‐Triggered Cascade 1,5‐Hydrogen Atom Transfer/(5+2) or (5+1) Annulation: Oxime as a Five‐Atom Assembling Unit
作者:Wu Liang、Kun Jiang、Fei Du、Jie Yang、Li Shuai、Qin Ouyang、Ying‐Chun Chen、Ye Wei
DOI:10.1002/anie.202007825
日期:2020.10.19
of iminyl radical‐triggered 1,5‐hydrogen atom transfer and (5+2) or (5+1) annulation processes, a series of structurally novel and interesting azepine and spiro‐tetrahydropyridine derivatives have been successfully prepared in moderate to good yields. This method utilizes FeCl2 as the catalyst and readily available oximes as five‐atom units, while showcasing broad substrate scope and good functional
通过亚胺基引发的1,5-氢原子转移与(5 + 2)或(5 + 1)环化反应的集成,成功制备了一系列结构新颖且有趣的氮杂和螺四氢吡啶衍生物产量。该方法利用FeCl 2作为催化剂,并以易获得的肟为五原子单元,同时显示出广泛的底物范围和良好的官能团相容性。环形产品可以轻松转换成许多有价值的化合物。此外,进行了DFT计算研究,以提供有关(5 + 2)和(5 + 1)环空的可能反应机理的一些见解。