Novel glycosyl pyridyl-triazole@palladium nanoparticles: efficient and recoverable catalysts for C–C cross-coupling reactions

Abstract

A series of glycosyl pyridyl-triazole@palladium nanoparticles have been prepared and applied in efficient C–C coupling such as Suzuki–Miyaura coupling, Heck reaction and Sonogashira reaction.

Facile Fabrication of Glycosylpyridyl-Triazole@Nickel Nanoparticles as Recyclable Nanocatalyst for Acylation of Amines in Water

“…of NiCl 2 were mixed and stirred, only the dimer was achieved in a low yield, but nothing of monomer could be obtained. These experiments indicated that the pyridyl triazole nickel complex could easily form dimer compared to monomer, which was different to the our previously reported results [34,35]. The as-prepared catalysts were stable in air and can be stored in air for a long time.…”

“…In recent years, the utilization of biomass sources such as carbohydrate, starch, cellulose and lignin also has produced great interest in the preparation of nanoparticles due to its green and essential roles in catalyzed reactions [29][30][31][32][33]. Recently, our group has prepared a highly active and easily recoverable heterogeneously sugar-based palladium catalysts which have been used for solvent-free Mizoroki-Heck reactions [34] and aqueous phase Suzuki-Miyaura couplings (Scheme 1a) [35]. Continuing our interests in the development of biomass-based catalyst [36], we sought to a catalytic system that would be convenient to prepare, and afford lower catalyst loading without the need of any organic ligand.…”

Novel Magnetically-Recyclable, Nitrogen-Doped Fe3O4@Pd NPs for Suzuki–Miyaura Coupling and Their Application in the Synthesis of Crizotinib

“…Continuing our longstanding interest in developing novel carbohydrate-derived catalysts for C-C or C-S coupling reactions [34][35][36][37][38], we were interested in developing a green and efficient chemistry protocol for C-C coupling reactions and related practical applications. Herein, we describe the efficient synthesis of a magnetically-recyclable, nitrogen-doped Fe3O4@Pd catalyst for the Suzuki coupling of aryl or heteroaryl halides (I, Br, Cl) with arylboronic acids.…”

Pd Nanoparticles Immobilized on Graphene Oxide/Silica Nanocomposite: Efficient and Recyclable Catalysts for Cross‐Coupling Reactions

“…Pd supported on different supports have been applied as catalysts in many processes such as hydrogenation, oxidation, and cross‐coupling reactions among others . In the case of C–C coupling reactions, the Suzuki and Heck reactions are the most explored ones, but Pd nanoparticles immobilized on inorganic matrices often suffer from metal leaching and particle growth due to Ostwald ripening, resulting in a limited recyclability in most cases.…”