The sonogashira reaction in water via an amphiphilic resin-supported palladium-phosphine complex under copper-free conditions

摘要

The Sonogashira reaction of aryl halides with terminal alkynes was catalyzed by an amphiphilic polystyrene-poly(ethylene glycol) (PS-PEG) resin-supported palladium-phosphine complex in water to give the corresponding aryl-substituted alkynes in high yields under copper-free conditions. Reaction of o-iodophenol with terminal alkynes under Sonogashira conditions gave benzofuran derivatives in one step.