Novel Water Dispersible and Magnetically Recoverable Palladium Nano Catalyst for Room?Temperature Suzuki?Miyaura Coupling Reaction

In this work, a new magnetic composite comprising starch, imidazolium and triazol groups is used as support for stabilization of palladium nanoparticles. This material has been characterized by different techniques showing the presence small uniform Pd nanoparticles in about 2 nm size. Measuring contact angle confirmed important role starch on increasing hydrophilic nature catalyst. Using 0.05 mol% catalyst aryl iodides or bromides reacted with boronic acids at room temperature aqueous media corresponding products are obtained very good to excellent yields. Hot filtration PVPy poisoning tests heterogeneous E-factor was found acceptable range close green chemistry standards. magnetically recovered recycled 10 consecutive times decrease activity. Also, robustness catalytic system demonstrated characterization reused