1033749-58-4Relevant articles and documents
Synthesis of nanomagnetic supported thiourea–copper(I) catalyst and its application in the synthesis of triazoles and benzamides
Mohammadi, Leila,Zolfigol, Mohammad Ali,Khazaei, Ardeshir,Yarie, Meysam,Ansari, Samira,Azizian, Saeid,Khosravi, Maryam
, (2018)
A novel nanomagnetic supported thiourea–copper(I) complex and inorganic–organic Takemoto-like hybrid nanomagnetic catalyst was designed, and synthesized. The prepared naomagnetic catalyst was characterized using Fourier transform infrared spectroscopy, X-ray diffraction, energy-dispersive X-ray analysis, transmission and scanning electron microscopies, thermogravimetry, nitrogen adsorption/desorption, zeta potential and vibrating sample magnetometry. Furthermore, the fabricated dual-role inorganic–organic hybrid catalyst shows a striking and robust catalytic activity for the synthesis of triazoles and benzamides through click and coupling reactions, respectively, under mild and eco-friendly reaction conditions.
Copper catalysed azide-alkyne cycloaddition (CuAAC) in liquid ammonia
Ji, Pengju,Atherton, John H.,Page, Michael I.
, p. 7965 - 7969 (2012)
Copper(i) catalysed azide-alkyne cycloaddition reactions (CuAAC) occur smoothly in liquid ammonia (LNH3) at room temperature to give exclusively 1,4-substituted 1,2,3-triazoles with excellent yields (up to 99%). The CuAAC reactions in liquid am
Magnetic starch nanocomposite as a green heterogeneous support for immobilization of large amounts of copper ions: Heterogeneous catalyst for click synthesis of 1,2,3-triazoles
Pourjavadi, Ali,Motamedi, Anahita,Hosseini, Seyed Hassan,Nazari, Mojtaba
, p. 19128 - 19135 (2016)
A new magnetic heterogeneous copper catalyst was prepared by immobilization of copper ions onto a cross-linked polymeric nanocomposite composed of starch grafted polyacrylamide and functionalized Fe3O4 magnetic nanoparticles. The resulting support was loaded with large amounts of copper ions (1.6 mmol g-1). The prepared catalyst is highly active in Huisgen 1,3-dipolar cycloaddition reactions of different azides and alkynes at low catalyst amounts. Various corresponding 1,2,3-triazoles were produced with high yields in mild conditions. The catalyst was easily recovered and reused for ten cycles of reaction and no significant loss of catalytic activity was observed.
Tris-isocyanide copper(I) complex enabling copper azide-alkyne cycloaddition in neat conditions
Ferraro, Valentina,Sole, Roberto,Bortoluzzi, Marco,Beghetto, Valentina,Castro, Jesús
, (2021/08/13)
The three-coordinated homoleptic Cu(I) complex with 2,6-dimethylphenyl isocyanide in the coordination sphere was easily synthesized and isolated as tetrafluoroborate salt. The structure of the compound was determined by single-crystal X-ray diffraction. T
Self-Assembled Polymeric Pyridine Copper Catalysts for Huisgen Cycloaddition with Alkynes and Acetylene Gas: Application in Synthesis of Tazobactam
Hu, Hao,Ohno, Aya,Sato, Takuma,Mase, Toshiaki,Uozumi, Yasuhiro,Yamada, Yoichi M. A.
supporting information, p. 493 - 498 (2019/04/30)
Novel convoluted polymeric pyridine copper(I) catalysts PVPy-Cu were developed for the Huisgen cyclization of organic azides using alkynes and acetylene gas. They were readily prepared based on our molecular convolution of CuSO4·5H2O and poly(4-vinylpyridine) (PVPy) in the presence of sodium ascorbate with and without various sodium salts in water. Their structural investigation was conducted using XANES and EXAFS, as well as DFT calculation. The Huisgen cycloaddition of a variety of alkynes and acetylene gas was carried out using 100 to 800 mol ppm of Cu of PVPy-Cu in water, whose turnover numbers reached up to 10 000. This catalytic system was applied to the synthesis of tazobactam, which is an inhibitor of bacterial β-lactamases.
