Novel, Reusable and Green Magnetically Nano Catalysts of Heteropolyacid; Preparation,Characterization and Application in Pyranopyrazoles Synthesizes

In this work, silica coated magnetic nanoparticles of modified polyphosphoric acid was synthesized,characterized by different methods, and applied as a catalyst for one-pot synthesis of pyranopyrazoles at roomtemperature in water as green solvent. The magnetic catalyst can be easily removed and reused without anyloss of its high catalytic activity

کلیدواژه ها:

magnetic nanoparticle ، heteropolyacid ، pyranopyrazoles