Copper-Free Sonogashira Coupling Reaction with PdCl<sub>2</sub> in Water under Aerobic Conditions
作者:Bo Liang、Mingji Dai、Jiahua Chen、Zhen Yang
DOI:10.1021/jo048599z
日期:2005.1.1
A mild protocol for the copper-free Sonogashira coupling of aryl iodides with terminal acetylenes in water under aerobic conditions has been developed. The use of 1 mol % PdCl2 in the presence of pyrrolidine allows the coupling reaction to proceed at room temperature or 50 °C with good to excellent yields.