Abstract

Poly(styrene-co-maleic anhydride) (SMA) was reacted with 4-amino-6-methyl-3-thioxo-1,2,4-triazine-5-one to obtain the corresponding imide [SMI] which was used as a substrate for immobilization of PdCl₂ and preparation of palladium nanoparticles (PdNPs). The supported PdNPs were fully characterized using scanning electron microscopy (SEM), energy dispersive X-ray (EDAX) and FTIR spectroscopy, and inductively coupled plasma spectrometry (ICP). The catalytic efficiency of the PdNPs was evaluated examined successfully in one the established and useful reaction so-called the Suzuki cross-coupling reaction involving the reaction of various aryl halides with phenylboronic acid in water. The advantages of this procedure include easy recovery and efficient reusability of the expensive PdNPs, high yields of the cross coupled products, short reaction times, and use of water as a green solvent for a wide range of substrates.

中文翻译：

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固定在聚苯乙烯-马来酰亚胺上的PdCl 2是铃木交叉偶联反应的有效多相催化剂

摘要

聚（苯乙烯-马来酸酐）（SMA）与4-氨基-6-甲基-3-硫代-1,2,4-三嗪-5-酮反应获得相应的酰亚胺[SMI]固定PdCl ₂的基质制备钯纳米粒子（PdNPs）。使用扫描电子显微镜（SEM），能量色散X射线（EDAX）和FTIR光谱以及电感耦合等离子体光谱（ICP）对负载的PdNP进行了全面表征。在一项已建立且有用的反应（所谓的Suzuki交叉偶联反应）中成功评估了PdNPs的催化效率，该反应涉及各种芳基卤化物与苯基硼酸在水中的反应。该方法的优点包括：昂贵的PdNPs易于回收和有效地重复使用；交联产物的收率高；反应时间短；水可作为绿色溶剂用于多种基材。