Palladium supported on zinc ferrite: an efficient catalyst for ligand free C–C and C–O cross coupling reactions

Palladium(II) on Functionalized NiFe2O4: An Efficient and Recyclable Phosphine-Free Heterogeneous Catalyst for Suzuki Coupling Reaction

“…Various coupling reactions using magnetically separable Pd-based catalysts have been well documented [20][21][22][23][24][25][26]. In our continuing effort to develop new palladium based heterogeneous catalyst [27][28][29], here we wish to report the Suzuki cross coupling reaction using palladium catalyst immobilized on super-paramagnetic nanoparticles without added phosphine ligands. The catalytic activity and stability of the magnetic catalyst was tested for Suzuki reaction.…”

Solid-Supported Palladium Catalysts in Sonogashira Reactions: Recent Developments

“…Thus, the Sonogashira reaction between iodoarenes and phenylacetylene was performed in refluxing ethanol as solvent, affording the corresponding products with good results (eight examples, 82-90% yield) [94]. The catalyst was separated of the reaction medium by a magnet and reused at least for three cycles.…”

“…The Sonogashira reaction with phenylacetylene was performed in Instead of magnetite, a zinc ferrite ZnFe 2 O 4 , the place of Fe(II) atoms in the inverse spinel being occupied by the Zn(II) atoms] has been recently used as support for the impregnation of palladium species. Thus, the Sonogashira reaction between iodoarenes and phenylacetylene was performed in refluxing ethanol as solvent, affording the corresponding products with good results (eight examples, 82-90% yield) [94]. The catalyst was separated of the reaction medium by a magnet and reused at least for three cycles.…”

Heterogeneous Pd catalysts supported on silica matrices

“…The article is organised with respect to the reactions in which the catalyst were employed so as to allow for a comparison of different approaches towards the design of catalysts for a particular type of organic transformation, covering the literature 7 up to 2014. Although many examples of C-N, C-O and C-S coupling reactions catalysed by Pd anchored to solid supports have been reported, [80][81][82][83] the C-C couplings still remain the main topic of interest at the moment. Hence, the main part of this review is devoted to C-C bond forming reactions though various C-X (X = O, N, S) couplings are also mentioned as they result in the formation of valuable functional molecules such as amides, esters, heterocyclic compounds, etc.…”