1394301-60-0Relevant articles and documents
Thiolate-protected gold nanoclusters Au25(phenylethanethiol)18: An efficient catalyst for the synthesis of propargylamines from aldehydes, amines, and alkynes
Adachi, Yurina,Kawasaki, Hideya,Nagata, Tatsuki,Obora, Yasushi
, p. 1457 - 1459 (2016)
In this study, we report a thiolate-protected Au nanocluster, Au25(phenylethanethiol)18 [Au25(PET)18], which serves as an efficient catalyst by a three-component coupling reaction (A3 reaction) of ald
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.
Gold immobilized onto poly(ionic liquid) functionalized magnetic nanoparticles: A robust magnetically recoverable catalyst for the synthesis of propargylamine in water
Moghaddam, Firouz Matloubi,Ayati, Seyed Ebrahim,Hosseini, Seyed Hassan,Pourjavadi, Ali
, p. 34502 - 34510 (2015/04/27)
Supported gold(III) on poly(ionic liquid) coated on magnetic nanoparticles produced a highly active, stable, recoverable and high loading for the synthesis of propargylamines (A3 coupling reaction) under green conditions. The reaction of aldehy
Manganese(ii) chloride catalyzed highly efficient one-pot synthesis of propargylamines and fused triazoles via three-component coupling reaction under solvent-free condition
Afraj, Shakil N.,Chen, Chinpiao,Lee, Gene-Hsian
, p. 26301 - 26308 (2014/07/08)
A one-pot green and highly efficient method for the synthesis of propargylamines and diastereoselective synthesis of fused triazoles via three-component coupling in the presence of manganese(ii) chloride as a catalyst and a catalyst-free 1,3-dipolar cycloaddition reaction, respectively, without using a co-catalyst or activator is reported. This methodology is efficient, eco-friendly, operationally simple and effective for reactions involving aromatic, aliphatic, and heterocyclic aldehydes, and provides an easy access to propargylamines in excellent yields, fused triazoles in good yield and excellent diastereoselectivities.
Highly efficient three-component coupling reaction catalyzed by gold nanoparticles supported on periodic mesoporous organosilica with ionic liquid framework
Karimi, Babak,Gholinejad, Mohammad,Khorasani, Mojtaba
supporting information, p. 8961 - 8963 (2012/11/13)
A novel gold nanoparticle supported periodic mesoporous organosilica with alkylimidazolium framework, Au@PMO-IL, was shown to be a highly active and recyclable catalyst for three-component coupling reaction of aldehyde, alkyne and amine to give the corresponding propargylamine.
