Search results for "Prolina"

showing 10 items of 11 documents

Immobilizzazione di dipeptidi su resina polistirenica ed impiego in sintesi stereoselettive: risultati preliminari

2008

dipeptidi sintesi stereoselettive prolina organocatalisi
researchProduct

Nuovo siero con vitamina C levogira stabilizzato con melatonina e resveratrolo. Prove di stabilità e uso clinico

2012

Nuovo siero con vitamina C levogira stabilizzato con melatonina e resveratrolo. Prove di stabilità e uso clinico Matteo Tutino, Giuseppe Morici, L. Cavarra, Francesco Nanfitò, D. Camacaro, Vittorio Calabrese. Università di Palermo, Dipartimento di Biomedicina sperimentale e neuroscienze cliniche - Università di Catania, Dipartimento Biochimica Clinica Fino ad ora è stato difficile utilizzare la vitamina C nelle preparazioni cosmetiche a causa della sua instabilità. L’acido ascorbico infatti si ossida velocemente in seguito all’esposizione alla luce, alla temperatura e all’aria. In questo lavoro viene riportata la capacità della melatonina e del resveratrolo a stabilizzare la vitamina C levo…

Acido ascorbicoCollageneLisinaiper-pigmentazioniSettore BIO/09 - FisiologiaProlina
researchProduct

Enhanced Activity and Stereoselectivity of Polystyrene-Supported Proline-Based Organic Catalysts for Direct Asymmetric Aldol Reaction in Water

2009

Several polystyrene-supported proline dipeptides and a prolinamide derivative were prepared by thiol–ene coupling. These materials were used as catalysts for the direct asymmetric aldol reaction in water, and results compared with unsupported catalysts in water. Such an approach gave more active or stereoselective catalysts compared to the unsupported compounds, showing that our immobilization procedure may be useful to develop catalytic materials with enhanced performance. Moreover, these catalysts can be recovered and reused for at least nine times without loss of activity or can be easily regenerated when their activity has decreased. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, …

ChemistryCatalyst supportOrganic ChemistryEnantioselective synthesisSettore CHIM/06 - Chimica OrganicaChemical synthesisCatalysisAldol reactionOrganocatalysisOrganic chemistryDipeptide Organocatalysis Prolinamide Proline Supported catalystAldol condensationStereoselectivityPhysical and Theoretical ChemistryEuropean Journal of Organic Chemistry
researchProduct

L-Prolina supportata su polistirene come catalizzatore eterogeneo nella reazione di condensazione aldolica “in the presence of water”

2006

Settore CHIM/06 - Chimica OrganicaProlina
researchProduct

CCDC 1855149: Experimental Crystal Structure Determination

2019

Related Article: Pasi Salonen, Anssi Peuronen, Jari Sinkkonen, Ari Lehtonen|2019|Inorg.Chim.Acta|489|108|doi:10.1016/j.ica.2019.02.011

(1-{[35-di-t-butyl-2-oxidophenyl]methyl}prolinato)-(methanol)-(methanolato)-(oxo)-vanadiumSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 866169: Experimental Crystal Structure Determination

2012

Related Article: C.Andreu, F.Sanz, G.Asensio|2012|Eur.J.Org.Chem.|2012|4185|doi:10.1002/ejoc.201200430

bis(L-Prolinamide)-chloro-zinc(ii) chlorideSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 2215543: Experimental Crystal Structure Determination

2023

Related Article: Cristina Negro, Héctor Martínez Pérez-Cejuela, Ernesto Francisco Simó-Alfonso, Waseem Iqbal, José Manuel Herrero-Martínez, Donatella Armentano, Jesús Ferrando-Soria, Emilio Pardo|2023|ACS Applied Materials and Interfaces|15|3069|doi:10.1021/acsami.2c20458

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameterscatena-[tris(mu-2-[{2-[(1-carboxylato-2-hydroxyethyl)azanidyl]-1-oxidanidyl-2-oxoethylidene}amino]-4-(methylsulfanyl)butanoato)-bis(mu-hydroxo)-(mu-aqua)-hexa-copper(ii)-strontium(ii) N-{2-chloro-1-[345-trihydroxy-6-(methylsulfanyl)oxan-2-yl]propyl}-1-methyl-4-propylprolinamide tetrahydrate]Experimental 3D Coordinates
researchProduct

CCDC 1855150: Experimental Crystal Structure Determination

2019

Related Article: Pasi Salonen, Anssi Peuronen, Jari Sinkkonen, Ari Lehtonen|2019|Inorg.Chim.Acta|489|108|doi:10.1016/j.ica.2019.02.011

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters(mu-oxido)-bis(1-[(35-di-t-butyl-2-oxidophenyl)methyl]prolinato)-aqua-dioxo-di-vanadium acetonitrile solvate hydrateExperimental 3D Coordinates
researchProduct

CCDC 1855151: Experimental Crystal Structure Determination

2019

Related Article: Pasi Salonen, Anssi Peuronen, Jari Sinkkonen, Ari Lehtonen|2019|Inorg.Chim.Acta|489|108|doi:10.1016/j.ica.2019.02.011

Space GroupCrystallography(1-{[2-oxido-35-dimethylphenyl]methyl}prolinato)-(methanol)-(methanolato)-oxo-vanadium methanol solvateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 866170: Experimental Crystal Structure Determination

2012

Related Article: C.Andreu, F.Sanz, G.Asensio|2012|Eur.J.Org.Chem.|2012|4185|doi:10.1002/ejoc.201200430

Space GroupCrystallographybis(L-Prolinamide)-bromo-zinc(ii) bromideCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct