Functionalization of Alkynes and Alkenes Using a Cascade Reaction Approach: Synthesis of β-Keto Sulfones under Metal-free Conditions
作者:Mukesh Kumar、Riyaz Ahmed、Maninder Singh、Shweta Sharma、Thanusha Thatikonda、Parvinder Pal Singh
DOI:10.1021/acs.joc.9b02779
日期:2020.1.17
reporting a multicomponent cascade reaction approach for the synthesis of β-keto sulfones by exploiting differential reactivity pattern of substrates under open-atmosphere and metal-free conditions. The coupling partners are aryldiazonium salts, unsaturated compounds, and DABSO. The optimized conditions worked well with both alkenes and alkynes. Moreover, the reaction also works with metabisulfite for
在这里,我们正在报道一种在开放气氛和无金属条件下通过利用底物的不同反应模式来合成β-酮砜的多组分级联反应方法。偶联伙伴是芳基重氮盐,不饱和化合物和DABSO。优化的条件对烯烃和炔烃都适用。此外,该反应还与焦亚硫酸盐一起用作砜的来源。受控液相色谱-质谱法和18 O标记的实验表明,空气是β-酮砜的酮基上引入的氧原子的来源。