Synthesis of DMF-protected Au NPs with different size distributions and their catalytic performance in the Ullmann homocoupling of aryl iodides

Wang Yao; Wei-Jie Gong; Hong-Xi Li; Fei-Long Li; Jun Gao; Jian-Ping Lang

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Synthesis of DMF-protected Au NPs with different size distributions and their catalytic performance in the Ullmann homocoupling of aryl iodides

机译：不同尺寸分布的DMF保护的Au NP的合成及其在芳基碘的Ullmann均偶联中的催化性能

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DMF-stabilized Au nanoparticles (NPs) with three different particle sizes were prepared by controlling the reaction temperatures and times. In the absence of any additional ligands, these Au NPs showed high catalytic activity in the Ullmann homocoupling of aryl iodides in DMF. The effects of Au particle size on the coupling reaction were investigated by the use of three Au catalysts with mean particle sizes of ca. 1.0 nm, 2.5 nm, and 5.5 nm, respectively. The catalytic activity of the Au NPs was found to be in the order of Au (2.5 nm) > Au (<1.0 nm) > Au (5.5 nm), indicating that surface Au atoms do not have the same catalytic activity toward such a homocoupling reaction.

机译：通过控制反应温度和时间，可以制备具有三种不同粒径的DMF稳定化的Au纳米颗粒（NPs）。在不存在任何其他配体的情况下，这些Au NP在DMF中的芳基碘化物的Ullmann均偶联中显示出高催化活性。通过使用三种平均粒径约为190nm的Au催化剂，研究了Au粒径对偶联反应的影响。分别为1.0 nm，2.5 nm和5.5 nm。发现Au NPs的催化活性为Au（2.5 nm）> Au（<1.0 nm）> Au（5.5 nm）的顺序，表明表面Au原子对这种均偶联没有相同的催化活性。反应。

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《Dalton transactions: An international journal of inorganic chemistry》 |2014年第42期|共8页
作者
Wang Yao; Wei-Jie Gong; Hong-Xi Li; Fei-Long Li; Jun Gao; Jian-Ping Lang;
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正文语种 eng
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Synthesis; distributions; iodides;

机译：合成;分布;碘化物;

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1. Synthesis of DMF-protected Au NPs with different size distributions and their catalytic performance in the Ullmann homocoupling of aryl iodides [J] . Wang Yao, Wei-Jie Gong, Hong-Xi Li, Dalton transactions: An international journal of inorganic chemistry . 2014,第42期

机译：不同尺寸分布的DMF保护的Au NP的合成及其在芳基碘的Ullmann均偶联中的催化性能
2. Synthesis of gold nanoparticles decorated on sulfonated three-dimensional graphene nanocomposite and application as a highly efficient and recyclable heterogeneous catalyst for Ullmann homocoupling of aryl iodides and reduction of p-nitrophenol [J] . Dabiri Minoo, Kashi Seyede Razie Banifatemi, Lehi Noushin Farajinia, Applied Organometallic Chemistry . 2018,第3期

机译：在磺化三维石墨烯纳米复合材料上装饰金纳米颗粒的合成及作为高效且可回收的非均相催化剂，用于芳基碘的Ullmann同性耦合，降低对硝基苯酚
3. Investigation of the catalytic activity of a Pd/biphenyl-based phosphine system in the Ullmann homocoupling of aryl bromides [J] . Nadri S., Azadi E., Ataei A., Journal of Organometallic Chemistry . 2011,第18期

机译：钯/联苯基膦系统在芳基溴化物的乌尔曼均偶联中的催化活性研究
4. Rapid Ullmann-type synthesis of aryl sulfides using a copper(I) catalyst and ligand under MW irradiation [C] . Vincenzo Fusillo, Mark C. Bagley European Symposium on Organic Chemistry . 2009

机译：使用铜（I）催化剂和配体在MW辐射下的芳基硫化物的快速ullmann型合成
5. Study of heteroaromatic enediyne and substituted benzothiophene synthesis with relative reactivity of substituted aryl iodides in the Sonagashira reaction. [D] . Hossain, Mohammad Selim. 2006

机译：在Sonagashira反应中研究杂芳烯二炔和取代苯并噻吩的合成，以及相对于取代芳基碘的反应性。
6. Simple size-controlled synthesis of Au nanoparticles and their size-dependent catalytic activity [O] . Petr Suchomel, Libor Kvitek, Robert Prucek, -1

机译：Au纳米粒子的简单尺寸控制合成及其尺寸依赖的催化活性
7. Homocoupling of aryl iodides promoted by nickel(0) nanoparticles [O] . Francisco Alonso, Paola Riente, Miguel Yus 2007

机译：由镍（0）纳米颗粒促进的芳基碘的同型偶联
8. Synthesis and X-ray Crystal Structures of (Au(CH2)2PPh2)2(CF3)2, (Au(CH2)2PPh2)2(C6F5)2, and (PPN)(Au(C6F5)4): Two Dinuclear Gold (II) Ylide Complexes Containing Alkyl and Aryl Ligands and a Tetrakis(pentafluorophenyl)aurate(III) [R] . Murray, H. H., Fackler, J. P., Porter, L. C., 1987

机译：（au（CH2）2pph2）2（CF3）2，（au（CH2）2pph2）2（C6F5）2和（ppN）（au（C6F5）4）的合成和X射线晶体结构：两个双核金（ II）含有烷基和芳基配体的Ylide配合物和四（五氟苯基）丙酸酯（III）

Synthesis of DMF-protected Au NPs with different size distributions and their catalytic performance in the Ullmann homocoupling of aryl iodides

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