A heterogeneous Cu-catalyst immobilized on poly(3-carboxythiophene)-modified multi-walled carbon nanotubes for click reaction
作者:Soo-Jung Kwak、Ueon Sang Shin、Seung-Hoi Kim
DOI:10.1007/s12039-023-02132-x
日期:——
Copper was anchored on poly[3-(carboxypropyl)thiophene-2,5-diyl]-modified multi-walled carbon nanotubes. The resulting novel catalytic platform (Cu@PCT@CNT) was successfully applied to the Cu-catalyzed azide−alkyne cycloaddition, which was composed of benzyl surrogate, terminal alkyne, and sodium azide. The cyclization proceeded smoothly in a three-components one-pot system in a heterogeneous environment, leading to the desired 1,4-disubstituted 1,2,3-triazoles in satisfactory results. In addition, simple operations for catalyst recovery and practical reusability tests have also been demonstrated. Synopsis: A novel catalytic platform (Cu@PCT@CNT) was prepared by anchoring copper on poly[3-(carboxypropy)thiophene-2,5-diyl]-modified multi-walled carbon nanotubes. The catalytic applicability was successfully demonstrated in Cu-catalyzed azide−alkyne cycloaddition, leading to the desired 1,4-disubstituted 1,2,3-triazoles in satisfactory results.
铜被固定在聚[3-(羧丙基)噻吩-2,5-二基]-修饰的多壁碳纳米管上。由此制备的新型催化平台(Cu@PCT@CNT)成功应用于铜催化的叠氮化物-炔烃环加成反应,该反应由苄基替代物、末端炔烃和叠氮化钠组成。在异相环境的三组分一锅体系中,环化反应顺利进行,最终得到所需的1,4-二取代1,2,3-三唑,结果令人满意。此外,还演示了催化剂回收的简单操作和实际可重复性测试。摘要:通过将铜固定在聚[3-(羧丙基)噻吩-2,5-二基]-修饰的多壁碳纳米管上,制备了一种新型催化平台(Cu@PCT@CNT)。在铜催化的叠氮化物-炔烃环加成反应中成功证明了该催化平台的适用性,最终得到所需的1,4-二取代1,2,3-三唑,结果令人满意。