Search results for "Selectfluor"

showing 2 items of 2 documents

Electrochemical monitoring of the oxidative coupling of alkynes catalyzed by triphenylphosphine gold complexes

2012

Electrochemical monitoring of the oxidative coupling of alkynes in the homogeneous phase through catalytic cycles involving triphenylphosphine gold complexes and selectfluor as oxidant reveals that at least two gold species in +3 and +1 oxidation states are implicated. Electrochemically driven homocoupling of terminal alkynes using molecular oxygen as the oxidant can be performed using such catalysts. Keywords: Gold catalysis, Oxidative coupling of alkynes, Oxygen, Voltammetry

chemistry.chemical_elementGold catalysisElectrochemistryPhotochemistryOxygenCombinatorial chemistryCatalysislcsh:ChemistryOxygenchemistry.chemical_compoundQUIMICA ORGANICAlcsh:Industrial electrochemistrylcsh:QD1-999chemistryHomogeneousOxidative coupling of alkynesElectrochemistryVoltammetryOxidative coupling of methaneTriphenylphosphineSelectfluorVoltammetrylcsh:TP250-261Electrochemistry Communications
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Gold Redox Catalytic Cycles for the Oxidative Coupling of Alkynes

2011

[EN] Au(I)/Au(III) catalytic cycles are catalytically competent to perform the oxidative coupling of alkynes in the homogeneous phase at room temperature and without any protecting atmosphere. Selectfluor as oxidant, wet acetonitrile as solvent, and sodium carbonate as base are the reagents of choice. Both aromatic and alkyl alkynes can be coupled, and mechanistic studies reveal that at least two gold species having different oxidation states are implicated in the key step of the coupling.

chemistry.chemical_classificationRedox chemistryGold catalysisGeneral ChemistryPhotochemistryRedoxCatalysisCatalysisSolventDiyneschemistry.chemical_compoundQUIMICA ORGANICAchemistryReagentOxidative coupling of alkynesVoltammetryOxidative coupling of methaneSelectfluorAcetonitrileAlkyl
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