Visible-Light-Induced, Catalyst-Free Radical Cross-Coupling Cyclization of <i>N</i>-Allylbromodifluoroacetamides with Disulfides or Diselenides
作者:Zhi-Peng Ye、Peng-Ju Xia、Fang Liu、Yuan-Zhuo Hu、Dan Song、Jun-An Xiao、Ping Huang、Hao-Yue Xiang、Xiao-Qing Chen、Hua Yang
DOI:10.1021/acs.joc.9b03490
日期:2020.4.17
A visible-light-induced, catalyst-free radical cross-coupling cyclization of diselenides or disulfides with N-allylbromodifluoroacetamide has been developed. This developed protocol exhibits good functional group tolerance and affords a variety of 4-thio- and 4-seleno-substituted 3,3-difluoro-γ-lactams in moderate to good yields. Based on control experiments, a plausible radical–radical cross-coupling
已经开发了二硒化物或二硫化物与N-烯丙基溴二氟乙酰胺的可见光诱导的,催化剂-自由基的交叉偶联环化。该开发的方案显示出良好的官能团耐受性,并以中等至良好的产率提供了各种4-硫代和4-硒代取代的3,3-二氟-γ-内酰胺。基于控制实验,提出了一个可能的自由基-自由基交叉偶联途径。