2101-57-7Relevant academic research and scientific papers
Silica immobilized copper N-heterocyclic carbene: An effective route to 1,2,3-triazoles via azide-alkyne cycloaddition and multicomponent click reaction
Garg, Anirban,Borah, Nobomi,Sultana, Jasmin,Kulshrestha, Akshay,Kumar, Arvind,Sarma, Diganta
, (2021/06/11)
A new silica supported copper N-heterocyclic carbene (Cu-NHC@SiO2) complex is prepared and characterized by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and X-ray photoelectron spectroscopy (XPS) analyses. This complex is an efficient and easily retrievable catalyst for 1,2,3-triazole synthesis through direct azide-alkyne cycloaddition reaction as well as one-pot reaction using arylboronic acids. This catalytic system is also suitable for synthesis of 4-aryl-NH-1,2,3-triazoles from diverse benzaldehydes. Further, the catalyst can efficiently be recycled up to fifth cycle for all the three methods of 1,2,3-triazole synthesis through direct azide-alkyne cycloaddition and multi-component reactions.
A sustainable approach for efficient one-pot synthesis of 1-aryl 1,2,3-triazoles using copper iodide supported on 3-thionicotinyl-urea-modified magnetic nanoparticles in DES
Mirshafiee, Sogand,Salamatmanesh, Arefe,Heydari, Akbar
, (2021/04/09)
An efficient and retrievable copper(I) catalyst was synthesized by immobilizing of copper iodide on 3-thionicotinyl-urea-modified magnetic nanoparticles and characterized using a variety of analysis techniques. The catalytic activity of these nanoparticle
Catalytic performance of Cu(II)-supported graphene quantum dots modified NiFe2O4 as a proficient nano-catalyst in the synthesis of 1,2,3-triazoles
Deilam, Razieh,Moeinpour, Farid,Mohseni-Shahri, Fatemeh S.
, (2020/07/06)
Abstract: NiFe2O4 nanoparticles are modified by graphene quantum dots (GQDs) and utilized to stabilize the Cu(II) nanoparticles as a novel magnetically retrievable catalytic system (Cu(II)/GQDs/NiFe2O4) for gree
A bile acid-based pyridino-triazole ligand for Cu(I)-stabilization and its application in Cu(I) catalyzed click reactions
Nayal, Aradhana,Pandey, Pramod S.
, (2020/10/23)
A bile acid based pyridino-triazole ligand to stabilize Cu(I) state has been developed. The ligand was found to catalyze click reactions of a number of alkynes and azides in presence of Cu(CH3CN)4.BF4 at very low catalyst
Cu nanoparticles immobilized on modified magnetic zeolite for the synthesis of 1,2,3-triazoles under ultrasonic conditions
Khakzad Siuki, Mohammad Mehdi,Bakavoli, Mehdi,Eshghi, Hossein
, (2019/02/20)
Magnetically recoverable copper nanoparticle-loaded natural zeolite (CuNPs/MZN) as an efficient catalyst was synthesized. The Fe3O4 magnetic nanoparticles were immobilized into the pores of natural clinoptilolite zeolite, which were
Synthesis, characterization, and investigation of catalytic activity of copper(II) porphyrin graphene oxide for azide–alkyne cycloaddition
Khojastehnezhad, Amir,Bakavoli, Mehdi,Javid, Ali,Khakzad Siuki, Mohammad Mehdi,Shahidzadeh, Mansour
, p. 4473 - 4485 (2019/05/17)
Abstract: A covalently cross-linked graphene oxide (GO) catalyst was prepared by a cross-linking process using nucleophilic reaction of copper(II)‐coordinated 5,10,15,20-tetrakis(aminophenyl)porphyrin (CuPPh) with carboxyl groups at the edges of GO (GO–CuPPh). The structure of the catalyst was characterized using different techniques such as Fourier-transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive x-ray spectroscopy (EDS), thermogravimetric analysis (TGA), and inductively coupled plasma (ICP) spectroscopy. All analyses confirmed successful covalent immobilization of CuPPh on GO. The activity of the catalyst was then studied for synthesis of 1,4-disubstituted 1,2,3-triazoles derivatives by reaction of various aryl azides and different terminal alkynes in mild reaction condition with good to excellent yield. Graphical abstract: [Figure not available: see fulltext.].
Ag-NHC anchored on silica: An efficient ultra-low loading catalyst for regioselective 1,2,3-triazole synthesis
Garg, Anirban,Khupse, Nagesh,Bordoloi, Ankur,Sarma, Diganta
supporting information, p. 19331 - 19337 (2019/12/24)
A silica-supported silver complex, Ag-NHC@SiO2, was prepared by an anchoring coordination technique, which was successfully employed for the click reaction under mild reaction conditions. The protocol offered the remarkable advantages of operat
Arylation of Click Triazoles with Diaryliodonium Salts
Virant, Miha,Ko?mrlj, Janez
, p. 14030 - 14044 (2019/10/19)
A robust, selective, and highly efficient method for the preparation of 1,3,4-triaryl 1,2,3-triazolium salts has been developed. It features arylation of a click triazole with a diaryliodonium salt in the presence of a copper catalyst under neat condition
Method for preparing 1,2,3-triazole compound by heterogeneous copper catalysis in one pot
-
Paragraph 0050-0051; 0052-0054; 0056, (2019/12/25)
The invention relates to a method for preparing a 1-aryl-4-substituted-1,2,3-triazole compound shown as a formula (II). The method comprises the following steps: mixing arylboronic acid (1), NaN3, a heterogeneous copper catalyst and solvent water, performing a stirring reaction at 25-60 DEG C for 4-8 hours, performing TLC (thin-layer chromatography) monitoring till the arylboronic acid (1) is completely converted, replacing air in the reaction system by using N2, adding a terminal alkyne (2), performing a reaction at 40-80 DEG C for 6-10 hours under the protection of N2, and performing post-treatment on the reaction solution to obtain a product (II). By adopting the preparation method, Cu-coated SBA-15-PTAA is used as a catalyst, a series of 1-aryl-4-substituted-1,2,3-triazole compounds are prepared through a one-pot Chan-Lam/Click series method without additionally adding a reducing agent, the developed catalytic method is green, safe and economical, the amount of three wastes (wastegas, waste water and industrial residue) is small, the yield of a target product is high, and the substrate application range is wide.
N-Heterocyclic carbene–copper complex supported on ionic liquid-modified graphene oxide: versatile catalyst for synthesis of (i) 1,2,3-triazole and (ii) propargylamine derivatives
Dabiri, Minoo,Alavioon, Seyed Iman,Movahed, Siyavash Kazemi
, p. 2463 - 2474 (2018/09/13)
A N-heterocyclic carbene–copper complex grafted on graphene oxide with an ionic liquid framework was prepared. The synthesis of (i) 1,2,3-triazole derivatives by ‘Click reaction’ and (ii) propargylamine derivatives by ‘A3 coupling reaction’ in
