Room-Temperature Nickel-Catalysed Suzuki-Miyaura Reactions of Aryl Sulfonates/Halides with Arylboronic Acids
作者:Xin-Heng Fan、Lian-Ming Yang
DOI:10.1002/ejoc.201001519
日期:2011.3
Room-temperature Suzuki―Miyaura aryl―aryl cross-coupling reactions have been achieved in high yields by using an easily accessible, air-stable Ni II ―(σ-aryl) complex as precatalyst without either the pretreatment of organometallic reagents or the presence of external reductants. The Ni II complex, in conjunction with monophosphane ligands such as PCy 3 ·HBF 4 or PPh 3 , allowed the efficient cross-coupling
室温下 Suzuki-Miyaura 芳基-芳基交叉偶联反应已通过使用易于获得、空气稳定的 Ni II-(σ-芳基) 配合物作为预催化剂以高产率实现,无需有机金属试剂的预处理或存在外部还原剂。Ni II 配合物与单膦配体如 PCy 3 ·HBF 4 或 PPh 3 结合,允许芳基磺酸盐(OTs、OMs)和/或卤化物(Cl、Br、I)与芳基硼酸在在作为碱的 K 2 CO 3 存在下,在甲苯/水中室温。