Because of the robustness and magnetic properties, the magnetic materials are promising and alternative candidate for the fabrication of noble metal in chemical catalysis from the viewpoint of green chemistry. Accordingly, an eco-friendly magnetic palladium catalyst loaded on N-Methylimidazole functionalized Fe₃O₄@SiO₂ nanoparticles (Fe₃O₄@SiO₂-NMIM-Pd) has been designed and prepared in the present work. The resultant composite exhibited excellent catalytic activity towards the Suzuki cross-coupling reaction for the synthesis of the corresponding biaryls in good to excellent yields (up to 96%) under aerobic conditions. In particular, this catalyst could be easily recovered through magnetic separation in a few cycles. The as-prepared palladium complex showed advantages including high thermal stability, low toxicity, moisture and oxygen insensitivities in Suzuki reactions. More importantly, this study presents a catalysis system, which will provide the magnetic materials access to the potential applications in a wide range of green organic catalysis.

由于其坚固性和磁性能，从绿色化学的观点来看，磁性材料是在化学催化中制备贵金属的有前途的和可替代的候选物。因此，负载在N-甲基咪唑官能化的Fe ₃ O ₄ @SiO ₂纳米颗粒（Fe ₃ O ₄ @SiO ₂-NMIM-Pd）已经在当前工作中进行了设计和准备。所得的复合物在好氧条件下以良好至优异的收率（高达96％）对铃木交叉偶联反应具有出色的催化活性，以合成相应的联芳基。特别地，该催化剂可以在几个循环中通过磁分离容易地回收。所制备的钯配合物在铃木反应中显示出包括高的热稳定性，低的毒性，湿气和氧气不敏感性的优点。更重要的是，这项研究提出了一种催化系统，它将为磁性材料提供广泛的绿色有机催化潜在应用的途径。