Symmetrical diynes were synthesized by ligand‐free copper‐catalyzed homocoupling reaction of 1,1‐dibromo‐1‐alkenes using a DBU/DMSO system at room temperature in good to excellent yields dot.−1.
对称二炔是在室温下使用
DBU /
DMSO系统通过无
配体铜催化的1,1-二
溴-1-烯烃的均偶联反应合成的,具有良好的收率。-1。