Direct Palladium‐Catalyzed C5‐Arylation of 1,3,4‐Oxadiazoles with Aryl Chlorides Promoted by Bis(diisopropylphosphino)ferrocene
作者:Loris Gelin、Henri Sabbadin、Hélène Cattey、Paul Fleurat-Lessard、Jean-Cyrille Hierso、Julien Roger
DOI:10.1002/ejoc.202400212
日期:——
The palladium-catalyzed direct arylation of 1,2,4-oxadiazoles proceeds efficiently at low catalyst loading (0.5 to 1 mol %) with the decisive assistance of sterically constrained ferrocenyldiphosphane ligands. This protocol tolerates electron-donating and electron-withdrawing substituents on the (heteroaryl)aryl halide.
在空间约束的二茂铁基二膦配体的决定性帮助下,钯催化的 1,2,4-恶二唑的直接芳基化反应在低催化剂负载量(0.5 至 1 mol %)下有效进行。该方案允许(杂芳基)芳基卤化物上的给电子和吸电子取代基。