Search results for "M-Porphyrin"

showing 3 items of 3 documents

Recent advances in electrochemical meso- and β-functionalization of porphyrins and electrografting of diazonium porphyrins

2020

Abstract Recent studies on electrochemical meso- and β-functionalization of porphyrins and electrografting of diazonium porphyrin are presented. First, the electrochemical oxidative C–C coupling between porphyrins will be presented, followed by the intermolecular and intramolecular meso- and β-substitutions of porphyrins. Then, the latest results on diazonium porphyrin electrografting will be reviewed.

Anodic nucleophilic substitution02 engineering and technology010402 general chemistryPhotochemistryElectrochemistry01 natural sciencesDiazonium-porphyrin electrograftingAnalytical ChemistryPorphyrinchemistry.chemical_compoundOrganic electrosynthesis[CHIM.ANAL]Chemical Sciences/Analytical chemistryElectrochemistry[CHIM.COOR]Chemical Sciences/Coordination chemistry[CHIM.ORGA]Chemical Sciences/Organic chemistryIntermolecular forceElectropolymerization[CHIM.MATE]Chemical Sciences/Material chemistry021001 nanoscience & nanotechnologyPorphyrin0104 chemical sciencesCoupling (electronics)chemistryIntramolecular forceSurface modification0210 nano-technology
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Inter- and Intramolecular Anodic Nucleophilic Substitutions of Porphyrins. Reactivity of the resulting products

2020

This manuscript presents the functionalization of porphyrins by anodic nucleophilic substitution (SNAn). After an introduction describing generalities on porphyrin, the 2nd chapter deals with the 2-step synthesis of primary aminoporphyrins. The 1st electrochemical step consists in oxidizing the porphyrin at the 1st oxidation potential in the presence of pyridine. The formed pyridinium-porphyrin is then transformed into an amine by opening the pyridinium fragment by nucleophilic attack of piperidine.The 3rd chapter presents the synthesis and redox reactivity of porphyrins substituted with one (or several) aromatic groups carrying an imine function (thiopyrimidine, quinoline and aminopyridine…

C-N FusionPorphyrinsAminoporphyrinPorphyrineSubstitution Nucléophile AnodiqueAminoporphyrine[CHIM.OTHE] Chemical Sciences/OtherFusion C-NNucléophilic Anodic SubstitutionFerrocenylporphyrinFerrocénylporphyrinePyrifinium-PorphyrinPyridinium- porphyrine
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POSS-based 3D functional networks as catalysts for the conversion of carbon dioxide

2023

Oggi lo sviluppo di processi sostenibili è al centro dell'attenzione a causa delle emergenze climatiche. La Chimica Verde, con i suoi dodici principi sviluppati da Paul Anastas, si concentra sullo sviluppo di processi alternativi e più rispettosi dell'ambiente. Questa branca della chimica mostra come concetti quali la prevenzione dei rifiuti, l'uso di materie prime rinnovabili e la catalisi siano di grande importanza per rendere un processo più sostenibile. In questo contesto, l'anidride carbonica (CO2) rappresenta una delle materie prime più abbondanti, non tossiche e rinnovabili. La possibilità di riutilizzare la CO2 e di trasformare questa molecola in prodotti a valore aggiunto come i ca…

Heterogeneous catalysiSilsesquioxaneCarbon NanoformBifunctional catalystM-PorphyrinSettore CHIM/06 - Chimica OrganicaCarbon Dioxide conversionCyclic Carbonate
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