Brønsted Base Assisted Photoredox Catalysis: Proton Coupled Electron Transfer for Remote C−C Bond Formation via Amidyl Radicals
作者:Jiaqi Jia、Yee Ann Ho、Raoul F. Bülow、Magnus Rueping
DOI:10.1002/chem.201802907
日期:2018.9.20
The synthesis of alkyne‐ and alkene‐decorated lactams has been achieved through a photoredox‐initiated radical cascade reaction. The developed Brønsted base assisted, photoredox‐catalyzed, intramolecular 5‐exo‐trig cyclization/intermolecular radical addition/elimination reaction provides facile access to functionalized γ‐lactams, with good functional group tolerance and high yields.
炔烃和烯烃修饰的内酰胺的合成是通过光氧化还原引发的自由基级联反应实现的。所开发的布朗斯台德碱的帮助下,photoredox催化分子内-5-外- TRIG环化/分子间基加/消除反应提供容易访问官能γ内酰胺类,具有良好的官能团耐受性和高的产率。