Thermoregulated Copper-Free Sonogashira Coupling in Water
作者:Ning Liu、Chun Liu、Qiang Xu、Zilin Jin
DOI:10.1002/ejoc.201100367
日期:2011.8
The Sonogashiracross-couplingreaction between aryl halides and terminal alkynes was carried out smoothly in water over a thermoregulated ligand–palladium catalyst under copper-free conditions, resulting in good to excellent yields. The Sonogashirareaction was sensitive to the electronic nature of the substituents on the aryl halides. Aryl halides with an electron-withdrawing group showed higher
Fabrication of PEI grafted Fe<sub>3</sub>O<sub>4</sub>/SiO<sub>2</sub>/P(GMA-co-EGDMA) nanoparticle anchored palladium nanocatalyst and its application in Sonogashira cross-coupling reactions