Výsledky vyhledávání - "Didier Gaude"

Photochromisme des Spiropyranes. Étude de la Colorabilité et de la Photodégradation de Dérivés Non-Azahétérocycliques

Autor: René Gautron, Robert Guglielmetti, Didier Gaude

Publikováno v: Bulletin des Sociétés Chimiques Belges. 100:299-314

Study of the photodegradation and the “colorability” of non-azaheterocyclic spiropyrans by repeated flashes showed the influence of different effects involving the heteroatom, the substituent and the concentration. Substituents in 3′, 6′ and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1aa0f120bd0fa5200e292d76653ddd7f
https://doi.org/10.1002/bscb.19911000404

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New 8-hydroxyquinoline and catecholate iron chelators: influence of their partition coefficient on their biological activity11Abbreviations: Kpart, partition coeffient; DFO, desferrioxamine B; TRX, O-Trensox; pFe = −log[Fe3+aq] at pH 7.4 with [Ligand] = 10 μM and [Fe] = 1 μM; LDH, lactate dehydrogenase; and PBS, phosphate-buffered saline

Autor: Nafissa Rakba, Daniel Imbert, Roberta J. Ward, Paul Baret, Guy Serratrice, Didier Gaude, Gérard Lescoat, Christophe Henry, Fabrice Thomas, Robert R. Crichton, Jean-Louis Pierre

Publikováno v: Biochemical Pharmacology. 62:1355-1362

Four new hexadendate chelators, three hydroxyquinoline-based, Csox, O-Trensox, Cox750, and one catecholate-based CacCam-which have comparable skeletal structures and pFe, but widely different partition coefficients, (Kpart), 0.01, 0.02, 1 and 3.2 res

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https://doi.org/10.1016/s0006-2952(01)00779-1

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Towards New Iron(III) Chelators: Synthesis and Complexing Ability of a Water-Soluble Tripodal Ligand Based on 2,2′-Dihydroxybiphenyl Subunits

Autor: Guy Serratrice, Claude Béguin, Paul Baret, Jean-Louis Pierre, Didier Gaude, Virginie Beaujolais

Publikováno v: European Journal of Inorganic Chemistry. 1998:613-619

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https://doi.org/10.1002/(sici)1099-0682(199805)1998:5<613::aid-ejic613>3.0.co

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1H NMR studies of the diamagnetic gallium (III) and paramagnetic iron (III) complexes of a chiral macrobicyclic ligand of bicapped tris (binaphtol) type

Autor: Jean-Louis Pierre, V. Beaujolais, C. Bougault, Paul Baret, Didier Gaude

Publikováno v: Journal de Chimie Physique et de Physico-Chimie Biologique. 95:112-121

1 H NMR studies of the diamagnetic gallium (III) and paramagnetic iron (III) complexes of a chiral macrobicyclic ligand of bicapped tris (binaphtol) type are described. The study of the gallium complex emphasizes: (i) that the inversion of the octahe

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https://doi.org/10.1051/jcp:1998105

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Control of the Helical Chirality in Octahedral Complexes by a Chiral Macrobicyclic Cavity Possessing Six Convergent Hydroxyl Groups

Autor: Didier Gaude, Jean-Louis Pierre, Paul Baret, Christian Coulombeau, Virginie Beaujolais

Publikováno v: Chemistry - A European Journal. 3:969-973

The (aR, aR, aR) and (aS, aS, aS) enantiomers of a chiral macrobicyclic ligand with a bicapped tris(binaphthol) structure were synthesized. Complexation of gallium(III), chromium(III) and iron(III) centres in the chiral cavities of these two ligands

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https://doi.org/10.1002/chem.19970030619

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Tripodal ligands possessing six convergent hydroxyl groups a novel family of iron sequestering agents based on o,o'-dihydroxybiphenyl subunits

Autor: Cyrille Mourral, Paul Baret, Guy Serratrice, Gisèle Gellon, Claude Béguin, Didier Gaude, Alain Favier, Jean-Louis Pierre

Publikováno v: Tetrahedron. 50:2077-2094

A new family of iron(III) sequestering agents has been designed. Tripodal ligands possessing six convergent hydroxyl groups have been prepared by condensation of an appropriate o, o'-biaryl building block and a spacer. The preparations of building bl

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https://doi.org/10.1016/s0040-4020(01)85070-5

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Hydrophilic and Lipophilic Iron Chelators with the Same Complexing Abilities

Autor: Fabrice Thomas, Jean-Louis Pierre, Daniel Imbert, Paul Baret, Isabelle Gautier-Luneau, Didier Gaude, Guy Serratrice, Gisèle Gellon

Publikováno v: Chemistry - A European Journal. 8:1091

A new series of iron chelators with the same coordination sphere as the water-soluble ligand O-trensox, but featuring a variable hydrophilic-lipophilic balance, have been obtained by grafting oxyethylene chains of variable length on a C-pivot tripoda

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https://doi.org/10.1002/1521-3765(20020301)8:5<1091::aid-chem1091>3.0.co

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Influence de la complexation sur la réactivité de nitrates d'halogènes

Autor: Didier Gaude, Raymond Le Goaller, Jean-Louis Pierre, Gisèle Gellon

Publikováno v: Canadian Journal of Chemistry. 67:104-108

Iodine nitrate or bromine nitrate in acetonitrile or in chloroform react with a variety of phenolic substrates to form both halogenated and nitrated products. In the presence of strong complexing agents of halonium ions, no reaction occurs, while in

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https://doi.org/10.1139/v89-018

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