Efficient Copper-Free PdCl<sub>2</sub>(PCy<sub>3</sub>)<sub>2</sub>-Catalyzed Sonogashira Coupling of Aryl Chlorides with Terminal Alkynes

Chenyi Yi, Ruimao Hua

The Journal of Organic Chemistry · 2006 · 169 citations · 6 references

Concepts

Abstract

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.

References

6