Catalyst‐Free and Oxidant‐Free Cascade Difluoroalkylation and Controllable C−F Bond Activation of Aryl Enol Acetates for the Synthesis of β‐Fluoroenones and β‐Enaminones
作者:Wenshuang Li、Ruyan Liu、Ruonan Li、Shihaozhi Wang、Dianjun Li、Jinhui Yang
DOI:10.1002/adsc.202100681
日期:2021.12.7
Aryl enol acetates and DMF could promote radical difluoroalkylation of aryl enol acetates to generate α,α-difluoro-γ-ketoacetates without a catalyst, an oxidant, or a base. When using different bases, β-fluoroenones and β-enaminones were synthesized by controllable C−F bond activation. These transformations provide an alternative method for the cascade difluoroalkylation and C−F bonds activation of
芳基烯醇乙酸酯和 DMF 可以促进芳基烯醇乙酸酯的自由基二氟烷基化,在没有催化剂、氧化剂或碱的情况下生成 α,α-二氟-γ-酮乙酸酯。当使用不同的碱基时,β-氟烯酮和β-烯胺酮是通过可控的CF键活化合成的。这些转化为芳基烯醇乙酸酯的级联二氟烷基化和 C-F 键活化提供了一种替代方法。