Highly ordered mesoporous polymer-supported phosphine as the ligand for organometallic reaction: Suzuki-Miyaura cross-coupling of aryl chlorides at room temperature

We prepared a highly ordered mesoporous polymer-supported diarylphosphine ligand by simple substitution reaction. By utilizing this ligand, we successfully achieved the Suzuki-Miyaura cross-coupling of various aryl chlorides at room temperature with high yields. Also, we extended our investigation to the use of a macroporous polymer support in a similar way, which yielded effective Suzuki-Miyaura cross-coupling reactions of both aryl chlorides and hindered aryl bromides. A highly ordered mesoporous polymer-supported diarylphosphine ligand was prpared by simple substitution reaction. The rigid structure of the polymer restricts the mobility of the polymer chains and interrupt the formation of bis-ligated catalyst, thereby selective preparation of mono-ligated catalyst can be achieved. By utilizing this ligand, we successfully achieved the Suzuki-Miyaura cross-coupling of various aryl chlorides even at room temperature with high yields.+image