Palladium complex of 2‐(diphenylphosphino)benzaldehyde (P,N‐ligand) was immobilized on three different amino functionalized supports such as MCM‐41, SBA‐16, and Fe₃O₄ nanoparticles (NPs) to evaluate their catalytic activity toward O‐arylation reaction. Catalytic results showed that P,N−Pd‐MCM‐41 catalyst exhibited much higher activity than the other two catalysts due to the higher active surface sites and could be reused for several runs without significant loss in its catalytic activity. Notably, the reaction was done under solvent‐free condition which is important from the green chemistry point of view. The catalysts were characterized by different techniques including X‐ray diffraction (XRD), Fourier‐transform infrared spectroscopy (FT‐IR), thermogravimetric analysis (TGA), transmission electron micrograph (TEM), scanning electron microscopy (SEM), X‐ray photoelectron spectroscopy (XPS), energy dispersive X‐ray spectroscopy (EDS), elemental analysis (CHN), inductively coupled plasma (ICP) spectroscopy, and N₂ adsorption–desorption analysis.

中文翻译：

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使用不同的非均相催化剂体系进行钯催化的O-芳构化反应：载体的作用

2-（二苯基膦基）苯甲醛（P，N-配体）的钯配合物固定在三种不同的氨基官能化载体上，例如MCM-41，SBA-16和Fe ₃ O ₄纳米颗粒（NPs）来评估其对O-芳基化反应的催化活性。催化结果表明，P，N-Pd-MCM-41催化剂由于具有较高的活性表面位点而显示出比其他两种催化剂高得多的活性，并且可以重复使用几次而不会显着降低其催化活性。值得注意的是，反应是在无溶剂条件下进行的，这从绿色化学的角度来看很重要。催化剂采用不同的技术进行表征，包括X射线衍射（XRD），傅立叶变换红外光谱（FT-IR），热重分析（TGA），透射电子显微照片（TEM），扫描电子显微镜（SEM），X射线光电子能谱（XPS），能量色散X射线能谱（EDS），元素分析（CHN），电感耦合等离子体（ICP）光谱和N ₂吸附-解吸分析。