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.
An efficient method for preparation of 3,5-diamino-6-chloropyrazin-2-yl alkyl ketones using a novel acetylene hydration method
作者:Marc J. Chapdelaine、Paul J. Warwick、Andrew Shaw
DOI:10.1021/jo00266a049
日期:1989.3
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.