A dicationic, podand-like, ionic liquid water system accelerated copper-catalyzed azide-alkyne click reaction
摘要:
In this work, an effective, task specific, dicationic, podand-like ionic liquid was synthesized and applied to improve the capability features of click reaction. Moreover, to broaden the scope and decreasing the serious limitations of preparation methods of organic azides, a simple green procedure for the preparation of alkyl azides, the fundamental starting materials in click reactions, from alcohols under solvent-free conditions and microwave irradiation has been reported, for the first time. (C) 2014 Mohammad Javaherian. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
Greener synthesis of 1,2,3-triazoles using a copper(<scp>i</scp>)-exchanged magnetically recoverable β-zeolite as catalyst
作者:Elizama R. Costa、Floyd C. D. Andrade、Danilo Yano de Albuquerque、Luanne E. M. Ferreira、Thiago M. Lima、Carolina G. S. Lima、Domingos S. A. Silva、Ernesto A. Urquieta-González、Márcio W. Paixão、Ricardo S. Schwab
DOI:10.1039/d0nj02473b
日期:——
Herein, we describe the preparation and thorough characterization of a novel magnetically recoverable copper(I)-exchanged β-zeolite and its use as an efficient catalyst for the synthesis of 1,2,3-triazoles via the one-pot three-component reaction of organic halides, terminal acetylenes, and sodium azide in water. The magnetically recoverable β-zeolite could be easily separated from the reaction mixture
Synthesis of a novel resorcin[4]arene–glucose conjugate and its catalysis of the CuAAC reaction for the synthesis of 1,4-disubstituted 1,2,3-triazoles in water
作者:Ali A. Husain、Kirpal S. Bisht
DOI:10.1039/c9ra00972h
日期:——
transfer catalyst for the CuAAC in water as a green approach for the synthesis of 1,4-disubstituted 1,2,3-triazole species. The catalytic utility of RG (1 mol%) was demonstrated in a multicomponent one-pot CuAAC for various azido/alkyne substrates. The RG acts as a molecular host and a micro-reactor resulting in the 1,4-disubstituted 1,2,3-triazoles in excellent yield.
Azide–alkyne cycloaddition reactions in water <i>via</i> recyclable heterogeneous Cu catalysts: reverse phase silica gel and thermoresponsive hydrogels
Functionalized reverse phase silicagel and thermoresponsive hydrogels were synthesized as heterogeneous catalysts supports. Cu(I) and Cu(II) catalysts immobilized onto two types of supports were prepared and characterized. The copper catalyzed azide–alkyne cycloaddition was performed in water via a one-pot reaction and yielded good results. These catalysts are air stable and reusable over multiple
合成了功能化的反相硅胶和热响应水凝胶作为非均相催化剂载体。制备并表征了固定在两种载体上的Cu( I ) 和 Cu( II ) 催化剂。铜催化的叠氮化物-炔烃环加成反应在水中通过一锅反应进行,并产生了良好的结果。这些催化剂对空气稳定且可多次使用。
Highly Efficient and Stable Atomically Dispersed Cu Catalyst for Azide‐Alkyne Cycloaddition Reaction
作者:Peng Ren、Qinglin Li、Tao Song、Zhaozhan Wang、Ken Motokura、Yong Yang
DOI:10.1002/cctc.202100831
日期:2021.9.17
In this study, we report a highly stable and efficient single-atom Cu dispersed on N-doped porous carbon as a superior catalyst for azide-alkynecycloaddition reaction. A broad set of 1,4-disubstituted 1,2,3-triazoles was synthesized in high to excellent yields with good tolerance of various functional groups in a cost-effective, environment-friendly manner. Parallel studies show that the single-atom
在这项研究中,我们报告了一种分散在 N 掺杂多孔碳上的高度稳定和高效的单原子 Cu 作为叠氮化物-炔烃环加成反应的优良催化剂。以具有成本效益、环境友好的方式以高到优异的收率合成了广泛的 1,4-二取代 1,2,3-三唑,对各种官能团具有良好的耐受性。平行研究表明,具有独特配位结构的单原子铜表现出优于金属铜纳米颗粒类似物的催化活性。值得注意的是,单原子铜催化剂表现出强大的稳定性,可以多次重复使用,而不会改变活性和区域选择性。
CuI/Et2NH-Catalyzed One-Pot Highly Efficient Synthesis of 1,4-Disubstituted 1,2,3-Triazoles in Green Solvent Glycerol
作者:Yongde Zhao、Shengqiang Guo、Yang Zhou、Bencai Dai、Cuimeng Huo、Changchun Liu
DOI:10.1055/s-0036-1591557
日期:2018.6
temperature. A concise one-pot three-component reaction of organic halides, terminal acetylenes, and sodium azide provided an efficient route for the synthesis of 1,2,3-triazoles. A variety of 1,2,3-triazoles were prepared in good to excellent yields with green solvent glycerol. This procedure used CuI and diethylamine, which are two easily available reagents as the new catalytic system at room temperature