Alishahi Zahra, Zolfigol Mohammad Ali, Azizian Saeid, Torabi Morteza, Gu Yanlong
Department of Organic Chemistry, Faculty of Chemistry and Petroleum Sciences, Bu-Ali Sina University Hamedan Iran
Department of Physical Chemistry, Faculty of Chemistry and Petroleum Sciences, Bu-Ali Sina University Hamedan Iran
Nanoscale Adv. 2025 Aug 20. doi: 10.1039/d5na00566c.
The emergence of covalent organic framework-carbon nanotube hybrid composites (COF-CNT) has opened up a promising approach for the development of heterogeneous catalysis. In this research, a new ferrocene-based COF was wrapped onto the surface of a carbon nanotube and modified with Cu(OAc) (denoted as FCOF-CNT-Cu(OAc)) for boosting the catalytic performance for the preparation of tetrazoles. Ferrocene segments played a decisive role in assisting Cu(OAc) as catalytically active sites for the preparation of 5-substituted 1-tetrazoles and acrylonitrile-linked tetrazoles. FCOF-CNT-Cu(OAc) had a high specific surface area of 117 m g, which accelerated the catalytic process. Field emission scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM) analyses revealed that the catalyst was ordered with a tubular morphology and spherical COF grown on the outer surface of the CNT. This work presents FCOF-CNT-Cu(OAc) as a superior catalyst toward the preparation of 5-substituted 1-tetrazoles and acrylonitrile-linked tetrazole derivatives. Consequently, tetrazole derivatives were synthesized in short reaction times under green and mild reaction conditions.
共价有机框架-碳纳米管杂化复合材料（COF-CNT）的出现为多相催化的发展开辟了一条前景广阔的途径。在本研究中，一种新型的基于二茂铁的COF被包裹在碳纳米管表面并用Cu(OAc)进行修饰（记为FCOF-CNT-Cu(OAc)），以提高制备四唑的催化性能。二茂铁片段在协助Cu(OAc)作为制备5-取代-1-四唑和丙烯腈连接的四唑的催化活性位点方面起决定性作用。FCOF-CNT-Cu(OAc)具有117 m²/g的高比表面积，这加速了催化过程。场发射扫描电子显微镜（FE-SEM）和透射电子显微镜（TEM）分析表明，该催化剂呈有序的管状形态，且在碳纳米管外表面生长有球形COF。这项工作展示了FCOF-CNT-Cu(OAc)作为制备5-取代-1-四唑和丙烯腈连接的四唑衍生物的优良催化剂。因此，在绿色温和的反应条件下，短时间内就能合成四唑衍生物。
