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 and characterization of active cuprous oxide particles and their catalytic application in 1,2,3‐triazole synthesis via alkyne‐azide cycloaddition reaction in water
作者:Micky Lanster Sawkmie、Dipankar Paul、Gitumoni Kalita、Khushboo Agarwala、Pradip K. Maji、Paresh Nath Chatterjee
DOI:10.1002/jhet.3723
日期:2019.12
the catalytic prowess of the various cuprous oxide materials in the cycloaddition reaction of alkynes and azides to synthesize 1,4‐disubstituted‐1,2,3‐triazoles. A wide variety of substitutions can nicely be tolerated in our optimized reaction conditions to produce very good to excellent yields of the corresponding triazoles in water at 55 °C. The reactions are carried out in water without any assistance
An efficient and recyclable thiourea-supported copper(<scp>i</scp>) chloride catalyst for azide–alkyne cycloaddition reactions
作者:Milan Kr. Barman、Ashish Kumar Sinha、Sharanappa Nembenna
DOI:10.1039/c5gc02545a
日期:——
A reaction between two equivalents of bulky thiourea i.e., 1-3-bis(2,6-dimethylphenyl)thiourea(L) [L = (ArNH)2C=S); (Ar = 2,6-Me2C6H3)}] and CuCl2 or CuCl in THF solvent afforded a bulky thiourea stabilized copper(I) halide...
CuO-Nanoparticles Catalyzed Synthesis of 1,4-Disubstituted-1,2,3-Triazoles from Bromoalkenes
作者:John Paul Raj、Dasari Gangaprasad、Murugesan Vajjiravel、Kesavan Karthikeyan、Jebamalai Elangovan
DOI:10.1007/s12039-018-1452-1
日期:2018.5
A novel and efficient protocol involving commercially available CuO nanoparticles (CNP) as catalyst has been developed for the synthesis of 1,2,3-triazoles. A library of 1,4-disubstituted 1,2,3-triazoles has been constructed with good to excellent yields. SynopsisA novel and efficient protocol involving commercially available CuO nanoparticles (CNP) as catalyst has been developed for the synthesis of 1,2,3-triazoles. A library of 1,4-disubstituted 1,2,3-triazoles has been constructed with good to excellent yields.
A copper-based ionic liquid as inexpensive and efficient catalyst for the [3 + 2] cycloaddition of azides and terminal alkynes
作者:Balaji Mohan、Hyuntae Kang、Kang Hyun Park
DOI:10.1016/j.inoche.2013.06.045
日期:2013.9
Abstract A fast and single-step synthesis of the octahedral Cu[(OHCH 2 CH 2 ) 2 NH] 6 [CF 3 SO 3 ] 2 ionic liquid is presented for use in click chemistry. The ionic liquid effectively catalyzes the [3 + 2] cycloaddition of azides and terminal alkynes to give 1,4-disubstituted1,2,3-triazolesregioselectively with high yields, without requiring bases, reducing agents, or inert atmospheres. The scope