6533b85bfe1ef96bd12ba248
RESEARCH PRODUCT
A New Heterogeneous Catalyst Obtained via Supramolecular Decoration of Graphene with a Pd2+ Azamacrocyclic Complex
Matteo SavastanoLluis GuijarroMari Paz ClaresPaloma Arranz-mascarósEnrique García-españaRafael CuestaRafael López-garzónMaria Luz Godino-salidoMario InclánAntonio BianchiM.d. Gutierrez-valerosubject
Models MolecularChemical PhenomenaIodobenzeneMolecular ConformationPharmaceutical ScienceSonogashira couplingLigands010402 general chemistryHeterogeneous catalysiscross coupling01 natural sciencesArticleCoupling reactionAnalytical Chemistrylaw.inventionCatalysislcsh:QD241-441chemistry.chemical_compoundlcsh:Organic chemistryCoordination ComplexeslawDrug DiscoveryPolymer chemistryPhysical and Theoretical ChemistryDiphenylacetyleneMolecular Structurecatalysis010405 organic chemistryGrapheneSpectrum AnalysisOrganic ChemistrySonogashirapalladium catalystHydrogen-Ion Concentrationsupramolecular interactions0104 chemical sciencesSolutionsazamacrocycleschemistryPhenylacetyleneChemistry (miscellaneous)surface adsorptionMolecular MedicineGraphitecatalysis palladium catalyst; Sonogashira graphenePalladiumdescription
A new G-(H2L)-Pd heterogeneous catalyst has been prepared via a self-assembly process consisting in the spontaneous adsorption, in water at room temperature, of a macrocyclic H2L ligand on graphene (G) (G + H2L = G-(H2L)), followed by decoration of the macrocycle with Pd2+ ions (G-(H2L) + Pd2+ = G-(H2L)-Pd) under the same mild conditions. This supramolecular approach is a sustainable (green) procedure that preserves the special characteristics of graphene and furnishes an efficient catalyst for the Cu-free Sonogashira cross coupling reaction between iodobenzene and phenylacetylene. Indeed, G-(H2L)-Pd shows an excellent conversion (90%) of reactants into diphenylacetylene under mild conditions (50 °
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-07-01 | Molecules |