In the present study, the modification of a mesoporous organosilica nanocomposite SBA‐15 (Santa Barbara Amorphous 15) was carried out in two steps, first through the surface functionalization of SBA‐Pr‐NH₂ with 2‐chloroquinoline‐3‐carbaldehyde to form SBA‐Pr‐NCQ, and then through a post‐modification process with palladium ions. The target nanocompound structure of SBA‐Pr‐NCQ‐Pd was characterized by different techniques (thermogravimetric analysis, X‐ray diffraction, scanning electron microscopy, Energy‐dispersive X‐ray spectroscopy (EDX), and Fourier transform infrared spectroscopy). The catalytic performance of the porous inorganic–organic hybrid nanocomposite (SBA‐Pr‐NCQ‐Pd) in one of the most important carbon–carbon bond‐forming processes, the Mizoroki–Heck coupling reaction of aryl halides and methacrylate in water/ethanol media, was examined. Compared to previous reports, this protocol afforded some advantages, such as high yields of products, short reaction times, catalyst stability without leaching, simple methodology, easy workup, and greener conditions. Also, the nanocatalyst can be easily separated from the reaction mixture and reused several times without a significant decrease in activity and promises economic as well as environmental benefits.

中文翻译：

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介孔有机硅负载钯（SBA-Pr-NCQ-Pd）的合成和表征，作为Mizoroki-Heck偶联反应中的高效纳米催化剂

在本研究中，介孔有机硅纳米复合材料SBA-15（Santa Barbara Amorphous 15）的改性分两个步骤进行，首先是通过SBA-Pr-NH ₂的表面功能化与2-氯喹啉-3-甲醛形成SBA-Pr-NCQ，然后通过钯离子进行后改性。SBA-Pr-NCQ-Pd的目标纳米化合物结构通过不同的技术（热重分析，X射线衍射，扫描电子显微镜，能量色散X射线光谱法（EDX）和傅里叶变换红外光谱法）进行了表征。多孔无机-有机杂化纳米复合材料（SBA-Pr-NCQ-Pd）在最重要的碳-碳键形成过程，芳基卤化物和甲基丙烯酸酯在水/乙醇介质中的Mizoroki-Heck偶联反应之一中的催化性能，进行了检查。与以前的报告相比，该方案具有一些优势，例如产品收率高，反应时间短，催化剂的稳定性而无需浸出，方法简单，后处理容易，更环保的条件。同样，纳米催化剂可以容易地从反应混合物中分离出来并重复使用几次，而活性没有显着降低，并有望带来经济和环境效益。