Synthesis and Characterization of Copper(I)‐Cysteine Complex Supported on Magnetic Layered Double Hydroxide as an Efficient and Recyclable Catalyst System for Click Chemistry Using Choline Azide as Reagent and Reaction Medium
Abstract In this study, Fe 3 O 4 @LDH@cysteine–Cu(I) nanoparticles as a novel and recyclable catalytic system was designed and successfully synthesized. These nanoparticles show high catalytic activity for preparation of the triazole family through reaction of the organic halides with alkynes in the presence of choline azide as reagent and reaction medium. In addition, Fe 3 O 4 @LDH@cysteine–Cu(I)
摘要 在本研究中,设计并成功合成了 Fe 3 O 4 @LDH@半胱氨酸-Cu(I) 纳米粒子作为一种新型可回收的催化体系。这些纳米颗粒在叠氮化胆碱作为试剂和反应介质的情况下,通过有机卤化物与炔烃的反应,对制备三唑族显示出高催化活性。此外,Fe 3 O 4 @LDH@cysteine-Cu(I) 可以很容易地回收和重复使用五次,催化活性没有任何显着损失。图形摘要
Click synthesis of 1,4-disubstituted-1,2,3-triazoles catalysed by CuO–CeO2 nanocomposite in the presence of amberlite-supported azide
A CuO–CeO2 nanocomposite in the presence of amberlite-supported azide has been used for the click synthesis of 1,4-disubstituted-1,2,3-triazoles in good yields. This catalyst can be reused several times without any significant decrease in the catalytic activity.
Copper (I) Iodide Nanoparticles on Polyaniline As a Green, Recoverable and Reusable Catalyst for Multicomponent Click Synthesis of 1,4-disubstituted-1H-1,2,3-triazoles
A one-pot procedure for the synthesis of 1,4-disubstituted-1H-1,2,3-triazole derivatives via the three component coupling reaction between terminal alkynes, benzyl halides/-halo ketones and sodium azide in the presences of CuI nanoparticles supported onto polyaniline (Nano CuI/PANI) catalyst in water has been developed. This heterogeneous catalyst showed high catalytic activity and 1,4-regioselectivity
在CuI存在下,通过末端炔烃,苄基卤化物/α-卤代酮和叠氮化钠之间的三组分偶联反应,通过一锅法合成1,4-二取代-1H-1,2,3-三唑衍生物已经开发了负载在水中的聚苯胺(Nano CuI / PANI)催化剂上的纳米颗粒。这种非均相催化剂显示出高的催化活性和1,4-区域选择性,可以在水中作为“绿色”溶剂进行点击环化,并且在所有情况下,重复进行五次实验均获得了良好或优异的收率。
Copper-loaded hypercrosslinked polymer decorated with pendant amine groups: a green and retrievable catalytic system for quick [3 + 2] Huisgen cycloaddition in water
作者:Arash Mouradzadegun、Mahsa Alsadat Mostafavi
DOI:10.1039/c6ra05234g
日期:——
heterogeneous copper catalyst based on a 3D-network polymer containing pendant amine groups was synthesized via post-functionalization of the polymeric backbone followed by incorporation of copper(I) ions. Catalytic activity of the newly designed catalyst was tested in a one-potsynthesis of 1,4-disubstituted1,2,3-triazoles by click reactions between primary halides, sodium azide and terminal acetylenes
Preparation, characterization and catalytic study of a nano-inorganic composite of CuO/NiO for the regioselective synthesis of 1,4-disubstituted-1,2,3-triazoles in water
作者:Zohreh Hashemi Beni、Jalal Albadi、Hamzeh Kiyani
DOI:10.1080/24701556.2021.1983838
日期:——
In this research, a nano-inorganic composite of CuO/NiO is prepared by co-precipitation method as an efficient recyclable nanocatalyst for the regioselectivesynthesis of 1,4-disubstituted-1,2,3-tr...