作者:Guangliang Tu、Dongjie Wang、Chunchen Yuan、Jingyu Zhang、Yingsheng Zhao
DOI:10.1021/acs.joc.0c01257
日期:2020.8.21
Highly efficient, palladium-catalyzed, para-selective difluoromethylation of arene esters has been developed using [1,1′-biphenyl]-2-dicyclohexylphosphine as the effective ligand. A wide variety of arene esters bearing various functional groups were all compatible with the reaction conditions, leading to para-difluoromethylated products in moderate to good yields. Moreover, benzoylamide and benzenesulfonamide
使用[1,1'-联苯] -2-二环己基膦作为有效的配体,开发了芳烃酯的高效钯催化的对位二氟甲基化。带有各种官能团的多种芳烃酯均与反应条件相容,从而导致对二氟甲基化产物的产率中等至良好。此外,苯甲酰胺和苯磺酰胺的耐受性也很好,这表明该新型催化剂体系对各种底物都有广泛的应用。