碳纳米管上的肟衍生钯环：Sonogashira-Hagihara反应的高效可回收催化剂

IF 2.1 3区化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR

Journal of Organometallic Chemistry Pub Date : 2025-08-08 DOI:10.1016/j.jorganchem.2025.123805

Mohammad Gholinejad , Faezeh Khosravi , Hanie Sobhani , José M. Sansano

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引用次数: 0

摘要

本研究合成并表征了碳纳米管负载型钯催化剂CNT@Ox-Pd。该催化剂是通过碳纳米管负载的肟衍生物钯环制备的，本文对其合成进行了详细的描述。CNT@Ox-Pd在无铜和无膦的Sonogashira-Hagihara交叉偶联反应中表现出很高的催化效率，涉及各种芳基碘化物和溴化物与末端炔，在80°C的氩气气氛下在DMF中获得了优异的产率。值得注意的是，该催化剂具有显著的可重复使用性，在至少连续七个循环中保持催化性能，效率损失最小。利用XPS、XRD、SEM、edx作图和TEM进行综合表征，证实了钯在载体上的成功掺入。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Oxime-derived palladacycle on CNTs: An efficient recyclable catalyst for Sonogashira-Hagihara reaction

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Oxime-derived palladacycle on CNTs: An efficient recyclable catalyst for Sonogashira-Hagihara reaction

In this study, a carbon nanotube supported Pd catalyst, CNT@Ox-Pd, was synthesized and characterized. The catalyst was prepared via an oxime-derived palladacycle supported on carbon nanotubes, and its synthesis is thoroughly described in this work. CNT@Ox-Pd exhibited high catalytic efficiency in copper- and phosphine-free Sonogashira-Hagihara cross-coupling reactions involving various aryl iodides and bromides with terminal alkynes, achieving excellent yields at 80 °C under an argon atmosphere in DMF. Notably, this catalyst showed remarkable reusability, maintaining catalytic performance for at least seven consecutive cycles with minimal loss of efficiency. Comprehensive characterization using XPS, XRD, SEM, EDX-mapping, and TEM confirmed the successful incorporation of palladium onto the support.

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来源期刊

Journal of Organometallic Chemistry 化学-无机化学与核化学

CiteScore

4.40

自引率

8.70%

发文量

221

审稿时长

36 days

期刊介绍： The Journal of Organometallic Chemistry targets original papers dealing with theoretical aspects, structural chemistry, synthesis, physical and chemical properties (including reaction mechanisms), and practical applications of organometallic compounds. Organometallic compounds are defined as compounds that contain metal - carbon bonds. The term metal includes all alkali and alkaline earth metals, all transition metals and the lanthanides and actinides in the Periodic Table. Metalloids including the elements in Group 13 and the heavier members of the Groups 14 - 16 are also included. The term chemistry includes syntheses, characterizations and reaction chemistry of all such compounds. Research reports based on use of organometallic complexes in bioorganometallic chemistry, medicine, material sciences, homogeneous catalysis and energy conversion are also welcome. The scope of the journal has been enlarged to encompass important research on organometallic complexes in bioorganometallic chemistry and material sciences, and of heavier main group elements in organometallic chemistry. The journal also publishes review articles, short communications and notes.