磁性可伸缩茶叶提取物稳定钯纳米粒子在绿色条件下用于芳基溴与芳基肼的变性交叉偶联：双芳基合成的另一条途径

IF 3.4 3区化学 Q2 CHEMISTRY, PHYSICAL

Catalysis Communications Pub Date : 2024-02-01 DOI:10.1016/j.catcom.2024.106862

Sumanth Hegde, Aatika Nizam

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引用次数: 0

摘要

采用共沉淀法合成了新型钯基磁性纳米催化剂，并以二氧化硅和茶叶提取物作为稳定剂进行了包覆。在制备的纳米复合材料上进行钯化，得到 ION-SiO2/TE-Pd(0) 催化剂。我们的研究是关于芳基溴和芳基肼催化脱氮偶联的少数研究之一。通过这项研究，我们以 82-92% 的收率合成了含有各种取代基的重要取代双芳基化合物。利用结构和形态表征技术对合成的纳米催化剂进行了表征。研究还发现，仅 2 摩尔%的 ION-SiO2/TE-Pd(0) 催化剂就足以进行催化，并且可重复使用长达六个循环。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Magnetically retractable tea extract stabilized palladium nanoparticles for denitrogenative cross-coupling of aryl bromides with arylhydrazines under green conditions: An alternate route for the biaryls synthesis

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Novel palladium based magnetic nanocatalyst was synthesized by the co-precipitation method and coated with silica and tea extract as stabilizing agent. Palladation onto the prepared nanocomposite was done to get ION-SiO₂/TE-Pd(0) catalyst. Our study is one of the limited number of studies reported for the catalytic denitrogenative coupling of arylbromide and arylhydrazine. This led to the construction of important substituted biaryls bearing various substituents with 82–92% yields. The synthesized nanocatalyst was characterized using structural and morphological characterization techniques. It was also observed that only 2 mol% of ION-SiO₂/TE-Pd(0) catalyst was sufficient for the catalysis and reusable upto six cycles.

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来源期刊

Catalysis Communications 化学-物理化学

CiteScore

6.20

自引率

2.70%

发文量

183

审稿时长

46 days

期刊介绍： Catalysis Communications aims to provide rapid publication of significant, novel, and timely research results homogeneous, heterogeneous, and enzymatic catalysis.