A Preparatively Convenient Ligand-Free Catalytic PEG 2000 Suzuki−Miyaura Coupling
摘要:
A ligand-free Suzuki-Miyaura reaction for the cross-coupling of aryl and heteroaryl bromides with aryl and heteroarylboronic acids has been developed utilizing catalytic polyethylene glycol 2000 (PEG 2000). This preparatively convenient system afforded the corresponding cross-coupled products in good to excellent isolated yields after a simple aqueous workup. Transmission electron microscopy (TEM) analysis of the Pd-PEG 2000 catalyst system revealed in situ-generated palladium nanoparticles after only 1 min of reaction.
A Preparatively Convenient Ligand-Free Catalytic PEG 2000 Suzuki−Miyaura Coupling
作者:Thomas M. Razler、Yi Hsiao、Feng Qian、Ruiling Fu、Rana Kashif Khan、Wendel Doubleday
DOI:10.1021/jo802277z
日期:2009.2.6
A ligand-free Suzuki-Miyaura reaction for the cross-coupling of aryl and heteroaryl bromides with aryl and heteroarylboronic acids has been developed utilizing catalytic polyethylene glycol 2000 (PEG 2000). This preparatively convenient system afforded the corresponding cross-coupled products in good to excellent isolated yields after a simple aqueous workup. Transmission electron microscopy (TEM) analysis of the Pd-PEG 2000 catalyst system revealed in situ-generated palladium nanoparticles after only 1 min of reaction.