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首页> 外文期刊>RSC Advances >Facile and surfactant-free synthesis of Pd nanoparticles by the extract of the fruits of Piper longum and their catalytic performance for the Sonogashira coupling reaction in water under ligand- and copper-free conditions
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Facile and surfactant-free synthesis of Pd nanoparticles by the extract of the fruits of Piper longum and their catalytic performance for the Sonogashira coupling reaction in water under ligand- and copper-free conditions

机译：通过吹笛延长的果实提取物的PD纳米颗粒的容易和无表面活性剂合成，其在配体和无铜条件下的Sonogashira偶联反应中的催化性能

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摘要

This work reports a facile synthesis of palladium nanoparticles (Pd NPs) by the extract of the fruits of Piper longum without any stabilizer or surfactant. The Pd NPs were found to be effective catalysts for the ligand-, amine-and copper-free Sonogashira coupling reaction under aerobic conditions. The Pd NPs were characterized with UV-vis, FT-IR and TEM methods. This method has the advantages of high yields, simple methodology, and elimination of ligands, copper, organic solvents and homogeneous catalysts and easy work up. Water is used as the only solvent for the coupling reaction. More importantly, the catalyst was recovered and recycled by a simple decantation of the reaction solution and used for five consecutive trials without significant loss of its reactivity.
机译：该作品通过吹笛延长的果实的提取物报告了钯纳米颗粒（Pd NPS）的容易合成，而没有任何稳定剂或表面活性剂。 发现PD NPS是有氧条件下配体，胺和无铜Sonogashira偶联反应的有效催化剂。 PD NPS以UV-Vis，FT-IR和TEM方法表征。 该方法具有高收益率，简单的方法，以及消除配体，铜，有机溶剂和均相催化剂的优点，并容易地锻炼。 用作偶联反应的唯一溶剂。 更重要的是，通过简单地倾析反应溶液回收并再循环催化剂，并用于连续五次试验，而不会对其反应性显着丧失。

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