Copper immobilized on glycine-functionalized poly(vinyl chlolide): low cost, highly active, recyclable catalyst at part-per million level for CuAAC reaction in water

IF 2.8 3区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Research on Chemical Intermediates Pub Date : 2025-02-06 DOI:10.1007/s11164-025-05518-3

Fang Zeng, Shuyao Zhang, Ting Lin, Yiqun Li, Meng Xiao

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Abstract

A novel Cu catalyst immobilized on glycine-functionalized poly(vinyl chloride) (Cu@Gly-PVC) was synthesized conveniently. The as-prepared catalyst was fully characterized by FTIR, SEM, EDS, elemental mapping, XPS, TGA, ICP, and EA analysis. The Cu(II) ions were uniformly distributed on the as-prepared Gly-PVC matrix via coordinated by carboxylic groups in a bidentate bridging pattern. This catalyst can be used at ppm levels in water for alkyne–azide cycloadditions (CuAAC) reactions, producing high yields of 1,2,3-triazoles. The present methodology offers several merits such as low catalyst loading, high catalytic activity, excellent yields, short reaction times, environmentally friendly reactions, simple operations, and compatibility of wide range of substrates. Furthermore, the catalyst can be easily isolated from the reaction mixture through simple filtration and retains remarkable reusability and catalytic activity even after four consecutive reaction cycles.

Graphical abstract

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甘氨酸功能化聚氯乙烯固定化铜：低成本、高活性、百万分之一可回收的水中CuAAC反应催化剂

合成了一种新型的甘氨酸功能化聚氯乙烯（Cu@Gly-PVC）固定化铜催化剂。通过FTIR、SEM、EDS、元素映射、XPS、TGA、ICP和EA等手段对催化剂进行了表征。Cu（II）离子通过羧基配位以双齿桥接方式均匀分布在Gly-PVC基体上。该催化剂可以在水中以ppm的浓度用于炔-叠氮环加成（CuAAC）反应，产生高收率的1,2,3-三唑。该方法具有催化剂负载少、催化活性高、产率好、反应时间短、反应环境友好、操作简单、与多种底物兼容等优点。此外，通过简单的过滤，催化剂可以很容易地从反应混合物中分离出来，即使在连续四个反应循环后，催化剂也能保持显著的可重复使用性和催化活性。图形抽象

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来源期刊

Research on Chemical Intermediates 化学-化学综合

CiteScore

5.70

自引率

18.20%

发文量

229

审稿时长

2.6 months

期刊介绍： Research on Chemical Intermediates publishes current research articles and concise dynamic reviews on the properties, structures and reactivities of intermediate species in all the various domains of chemistry. The journal also contains articles in related disciplines such as spectroscopy, molecular biology and biochemistry, atmospheric and environmental sciences, catalysis, photochemistry and photophysics. In addition, special issues dedicated to specific topics in the field are regularly published.