Magnetically Separated Reusable Palladium Catalysts Based on Raney Nickel for the Sonogashira Reaction in Aqueous Media

Hybrid materials are developed based on palladium- and copper-doped Raney nickel (Ra–Ni) and shown to be highly efficient catalysts for the Sonogashira reaction in aqueous media free of organic solvents. The resulting catalysts can be retrieved with ease using an external magnet and reused without loss of the catalytic activity.