作者:Zhen Yang、Yujing Guo、Rene M. Koenigs
DOI:10.1002/chem.201900597
日期:2019.5.10
Sigmatropic rearrangement reactions constitute one of the most fundamental reactions of carbenes. While state‐of‐the‐art synthetic methods require the use of expensive precious metal catalysts, the application of visible light for the photolysis of α‐aryldiazoacetates is much less investigated and provides an operationally simple entry to carbenes under mild reaction conditions. Herein, we report on
适马重排反应是卡宾碳氢化合物最基本的反应之一。虽然最先进的合成方法需要使用昂贵的贵金属催化剂,但对可见光进行α-芳基重氮乙酸酯光解的应用却很少进行研究,并且在温和的反应条件下操作简便地进入了羧甲基苯。在此,我们报道了硫化合物与α-芳基重氮乙酸盐的蓝光诱发σ重排反应。该过程取决于硫化物的取代方式,从而打开了卡宾对SN,SC或CH键的正式插入反应。