An N-Heterocyclic Carbene-Nickel Half-Sandwich Complex as a Precatalyst for Suzuki–Miyaura Coupling of Aryl/Heteroaryl Halides with Aryl/Heteroarylboronic Acids
作者:Shin Ando、Hirofumi Matsunaga、Tadao Ishizuka
DOI:10.1021/acs.joc.6b02666
日期:2017.1.20
A nickel half-sandwich complex supported by our original NHC ligand was developed as a robust precatalyst for Suzuki–Miyaura cross-coupling. The addition of PPh3 was a crucial element in the suppression of side reactions and in accelerating the cross-coupling reaction. By employing the optimal conditions, aryl–aryl, heteroaryl–aryl, and heteroaryl–heteroaryl couplings were achieved.
我们最初的NHC配体支持的镍半三明治复合物被开发为铃木-宫浦交叉偶联的强力预催化剂。PPh 3的添加对于抑制副反应和加速交叉偶联反应至关重要。通过采用最佳条件,可以实现芳基-芳基,杂芳基-芳基和杂芳基-杂芳基偶联。