103095-68-7Relevant articles and documents
1,2,3-Triazolylidenes as versatile abnormal carbene ligands for late transition metals
Mathew, Paulson,Neels, Antonia,Albrecht, Martin
, p. 13534 - 13535 (2008)
The [3 + 2] cycloaddition of azides and acetylenes followed by nitrogen quaternization was applied for the generation of novel and highly modular triazolium salts. The selective substitution of the 1,3,4-substitution pattern presets such salts as precursors for a new class of abnormal carbene ligands, thus expanding the family of these high-impact ligands. Metalation of the triazolium salts is highly versatile and is illustrated by direct C-H bond activation as well as by applying a transmetalation protocol, thus providing access to Pd(II), Ru(II), Rh(I), and Ir(I) abnormal carbene complexes. The donor properties of these carbenes were analyzed by using Tolman electronic parameters and were found to be slightly stronger than those the most basic normal carbenes. Copyright
Melamine-supported nickel oxide nanoparticles as a good alternative to conventional copper catalysts for the regioselective synthesis of triazole derivatives in water
Hashemi, Zahra,Albadi, Jalal,Jalali, Mehdi
, p. 5291 - 5302 (2021)
Nickel oxide nanoparticles supported on melamine as a good alternative to conventional copper catalysts have been prepared and used for the regioselective synthesis of triazole derivatives in water. This catalyst can be reused several times without any si
A copper(II)-thioamide combination as a robust heterogeneous catalytic system for green synthesis of 1,4-disubstituted-1,2,3-triazoles under click conditions
Mirjafary, Zohreh,Ahmadi, Leila,Moradi, Masomeh,Saeidian, Hamid
, p. 78038 - 78046 (2015)
An efficient and practical synthesis of 1,4-disubstituted-1,2,3-triazoles under click conditions using a copper(ii)-thioamide combination as an efficient heterogeneous catalyst is disclosed. Mild reaction conditions and high yields make this method an attractive option for the preparation of triazole derivatives. The key to this procedure was the generation of Cu(I) required for the azide-alkyne cycloaddition, which was achieved by in situ reduction of Cu(II) using thiobenzanilide as reduction agent and ligand.
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
Albadi, Jalal,Beni, Zohreh Hashemi,Kiyani, Hamzeh
, (2021/10/05)
In this research, a nano-inorganic composite of CuO/NiO is prepared by co-precipitation method as an efficient recyclable nanocatalyst for the regioselective synthesis of 1,4-disubstituted-1,2,3-triazoles in water. The catalyst was characterized by severa
Bifunctional Solid Catalyst for Organic Reactions in Water: Simultaneous Anchoring of Acetylacetone Ligands and Amphiphilic Ionic Liquid “Tags” by Using a Dihydropyran Linker
Lai, Bingbing,Mei, Fuming,Gu, Yanlong
, p. 2529 - 2542 (2018/09/06)
The use of solid catalysts to promote organic reactions in water faces the inherent difficulty of the poor mass-transfer efficiency of organic substances in water, which is often responsible for insufficient reaction and low yields. To solve this problem, the solid surface can be manipulated to become amphiphilic. However, the introduction of surfactant-like moieties onto the surface of silica-based materials is not easy. By using an accessible dihydropyran derivative as a grafting linker, a surfactant-combined bifunctional silica-based solid catalyst that possessed an ionic liquid tail and a metal acetylacetonate moiety was prepared through a mild Lewis-acid-catalyzed ring-opening reaction with a thiol-functionalized silica. The surfactant-combined silica-supported metal acetylacetone catalysts displayed excellent catalytic activity in water for a range of reactions. The solid catalyst was also shown to be recyclable, and was reused several times without significant loss in activity.
