Efficient Copper-Free PdCl2(PCy3)2-Catalyzed Sonogashira Coupling of Aryl Chlorides with Terminal Alkynes
摘要:
[GRAPHICS]Under copper-free conditions and with Cs2CO3 as a base, PdCl2(PCy3)(2) showed high catalytic activity for cross-coupling of electron-rich, electron-neutral, and electron-deficient aryl chlorides with a variety of terminal alkynes in DMSO at 100-120 degrees C affording internal arylated alkynes in good to excellent yields.
Efficient Copper-Free PdCl<sub>2</sub>(PCy<sub>3</sub>)<sub>2</sub>-Catalyzed Sonogashira Coupling of Aryl Chlorides with Terminal Alkynes
作者:Chenyi Yi、Ruimao Hua
DOI:10.1021/jo0525175
日期:2006.3.1
[GRAPHICS]Under copper-free conditions and with Cs2CO3 as a base, PdCl2(PCy3)(2) showed high catalytic activity for cross-coupling of electron-rich, electron-neutral, and electron-deficient aryl chlorides with a variety of terminal alkynes in DMSO at 100-120 degrees C affording internal arylated alkynes in good to excellent yields.