Rare-earth metal triflates have been well established as potent environmentally-benign Lewis acids. This review summarizes the recent progress of RE(OTf)3 catalyzed organic synthesis in green media including water, ionic liquids, super critical CO2, solvent-free conditions as well as solid supported synthesis.
Keywords: rare-earth metal triflates, aqueous phase, ionic liquids, super critical co2, solvent free, solid support, organic synthesis, green chemistry