Synthesis of polystyrene-bound perfluoroalkyl sulfonic acids and the application of their ytterbium salts in multicomponent reactions (MCRs)

New polystyrene-bound perfluoroalkyl sulfonic acids and their ytterbium salts have been prepared. Multicomponent reactions (MCRs) for the efficient synthesis of homoallylic amines or amides catalyzed by the polystyrene-bound perfluoroalkyl sulfonic ytterbium salts are reported.