Search results for "Y zeolite"

showing 2 items of 2 documents

Hydrogenolysis of hydroxymatairesinol on Y derived catalysts: a computational study

2010

Hydrogenolysis of 7-hydroxymatairesinol (HMR) to matairesinol (MAT) occurs on palladium supported acidic catalysts. HMR has three stereochemical centres and naturally exists as a mixture of two diastereoisomers, namely RRR-HMR and SRR-HMR. The latter is significantly more reactive than the former, in the reaction above. In order to elucidate the hydrogenolysis mechanism, simple surface events involving HMR derivatives on aluminated faujasite (H-Y) fragments were simulated by quantum chemical calculations. The metallic function of a Pd/H-Y acidic catalyst was also mimicked by a minimal palladium cluster. Stereochemical evidences pointed already out that water β-elimination on the epimeric ce…

7-HydroxymatairesinolProcess Chemistry and TechnologySupported catalystschemistry.chemical_elementDFT calculationFaujasiteengineering.materialHeterogeneous catalysisMedicinal chemistryHydrogenation/dehydration processeCatalysisCatalysisReaction rateHydroxymatairesinolchemistryHydrogenolysisengineeringOrganic chemistryReactivity (chemistry)Physical and Theoretical ChemistryPalladiumH-Y zeolite
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Electrocatalysis of neurotransmitter catecholamines by 2,4,6-triphenylpyrylium ion immobilized inside zeolite Y supercages

1999

2,4,6-Triphenylpyrylium ions entrapped inside the supercages of Y zeolite exert a remarkable catalytic effect toward the electrochemical oxidation of dopamine and norepinephrine (neurotrasmitter catecholamines) in neutral aqueous media. Domenech Carbo, Antonio, Antonio.Domenech@uv.es

endocrine system diseasesUNESCO::QUÍMICAInorganic chemistryElectrocatalysis ; Trphenylpyrydium ; Y zeolite ; Neurotransmitter ; Catalytic effectNanotechnologyElectrochemistryElectrocatalyst:QUÍMICA [UNESCO]CatalysisCatalytic effectIonNorepinephrine (medication)chemistry.chemical_compoundDopamineCatalytic effectMaterials ChemistrymedicineTrphenylpyrydiumNeurotransmitterNeurotransmitterZeoliteUNESCO::QUÍMICA::Química analíticaY zeoliteMetals and AlloysGeneral ChemistrySurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialschemistryCeramics and Composites:QUÍMICA::Química analítica [UNESCO]Electrocatalysismedicine.drug
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