Reusable copper-catalyzed cross-coupling reactions of aryl halides with organotins in inexpensive ionic liquids

Reusable copper-catalyzed cross-coupling reactions of aryl halides with organotins in inexpensive ionic liquids were examined. It was found that in the presence of Cu2O nanoparticles and P(o-tol)3, a variety of aryl halides including aryl chlorides underwent the Stille reaction with organotins smoothly in moderate to excellent yields in TBAB medium.