One-Pot Palladium-Catalyzed Cross-Coupling Treble of Borylation, the Suzuki Reaction and Amination
作者:Howard Jong、Stanley T.-C. Eey、Yee Hwee Lim、Sangeeta Pandey、Nurul Azmah Bte Iqbal、Fui Fong Yong、Edward G. Robins、Charles W. Johannes
DOI:10.1002/adsc.201600708
日期:2017.2.20
A methodology for a sequential palladium‐catalyzed cross‐coupling procedure consisting of borylation, the Suzuki reaction and amination has been developed for the assembly of molecules with multi‐aryl backbones. The linchpin of this development is the meta‐terarylphosphine ligand, Cy*Phine, which has been employed as an air‐ and moisture‐stable precatalyst, Pd(Cy*Phine)2Cl2, to improve the efficiency
已经开发了一种由硼化,Suzuki反应和胺化组成的顺序钯催化交叉偶联程序的方法,用于组装具有多芳基骨架的分子。这一发展的关键是间-叔芳基膦配体Cy * Phine,已被用作对空气和湿气稳定的前催化剂Pd(Cy * Phine)2 Cl 2,以提高一锅硼化-铃木反应的效率。此外,可以调整Pd-Cy * Phine系统的反应性,以提供一锅,硼化-铃木反应-胺化(BSA)交叉耦合的三重峰。该方法成功地整合了三个截然不同的模块化反应的互补条件。每个区段的平均产量可达到74-94%,在一个锅中,在整个三步过程中累计提供50-84%的产量。