An incredible magnetic Pd/CuFe sub(2) O sub(4) catalyst for low-temperature aqueous Suzuki-Miyaura coupling

Abstract

In this investigation, a magnetic catalyst system based on CuFe sub(2) O sub(4) was conveniently synthesised using citrate-gel method followed by wet impregnation. The synthesised compound was thoroughly characterised using XRD, XPS, IR, SEM-EDAX, TEM VSM and ICP-AES. It was then utilised for catalytic Suzuki-Miyaura coupling yielding excellent results. We thus report a remarkably efficient ligand-free magnetic Pd catalyst for Suzuki-Miyaura coupling in aqueous medium. Here the amount of Pd utilised is as low as 0.00047 mol percent in terms of aryl iodide used. The catalyst showed unaltered activity for five consecutive cycles with an average yield of 89.6 percent with the model substrate.