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Academic literature on the topic 'Etude conformationnelle par RMN lH'
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Journal articles on the topic "Etude conformationnelle par RMN lH"
Dana, Gilbert, Estera Touboul, Odile Convert, and Yves Louis Pascal. "Analyse conformationnelle et flexibilite d'aryl-2 tetrahydrofurannes encombres. Etude par RMN et mecanique moleculaire." Tetrahedron 44, no. 2 (January 1988): 429–42. http://dx.doi.org/10.1016/s0040-4020(01)85834-8.
Full textSalah, Nessrine, Youssef Arfaoui, Mohamed Bahri, Mohamed Lotfi Efrit, and Azaiez Ben Akacha. "Synthese et Etude Conformationnelle Par RMN (1H, 13C, 31P) et DFT des Cycloalcoxyphosphinallenes et des Hydrazones β-Cycloalcoxyphosphonatees." Phosphorus, Sulfur, and Silicon and the Related Elements 188, no. 5 (May 1, 2013): 609–22. http://dx.doi.org/10.1080/10426507.2012.700348.
Full textDana, Gilbert, Estera Touboul, and Odile Convert. "Analyse conformationnelle en serie tetrahydrofurannique. Etude par RMN de l'inversion de cycle accompagnant la reaction d'anomerisation des dihalo-2,3 aryl-5 tetrahydrofurannes." Tetrahedron 45, no. 11 (January 1989): 3371–84. http://dx.doi.org/10.1016/s0040-4020(01)81016-4.
Full textDissertations / Theses on the topic "Etude conformationnelle par RMN lH"
RABIER, PATRICIA. "Etude dynamique et conformationnelle de peptides par rmn." Université Louis Pasteur (Strasbourg) (1971-2008), 1999. http://www.theses.fr/1999STR13188.
Full textPellet, Alain. "Réactivité des pyridylacétonitrile, aminonitrile et éther de cyanhydrine vis à vis de composés carbonylés α, β [alpha-béta] éthyléniques : synthèse et stéréochimie de γ [gamma] cétonitriles et de γ [gamma] cétoaldéhydes." Paris 11, 1988. http://www.theses.fr/1988PA112130.
Full textThis work deals with the regioselectivity of addition of alpha nitrile carbanions on unsaturated carbonyl compounds in the aim of synthesizing gamma functionalized carbonyl compounds. In the first chapter, we have shawn that the addiion of lithiated 3-pyridylacetonitrile to various enones in tetrahydrofurane, followed by protonation, leads exclusively to 1,4 adducts, the bicylcic ketones are Cis ring fused. The cis or trans stereochemistry of the 2,3-disubstituted cyclanones depends on the protonation of enolates under kinetic or thermodynamic control. The 1,2 addition of this anion on 3-methyl 2-butene 1-al is performed in tetrahydrofurane whereas 1,4 addition is observed under thermodynamic control in the presence of hexamethylphosphoramide or trifluoroboron etherate. In the second chapter, we have realized regioselective additions of lithiated and potassiated dimethylaminophenylacetonitrile and lithiated (ethoxy-ethoxy) phenylacetonitrile (latent benzoyl equivalents) on various unsaturated aldehydes. Our study centers on the influence of the nature of the reactants, solvents, cations, Lewis acids, and experimental conditions on the regio and stereoselectivities of these additions. A methodology leading to ketoaldehydes and keto allylic alcohols, usually difficult to obtain, was improved and applied to the synthesis of optically active compounds. In the third chapter, the reductive decyanation by different borohydrides was studied on an aminonitrile model with the aim of accessing to aminoaldehydes and aminoallylic alcohols. The desired free amine is accompanied by various amounts of stable amine-borane complexe according to the reducing agent. This methodology, applied to 1,4 adducts, leads to the corresponding aminoalcohols while retrocondensation occurs from the1,2 adducts
BOUCHEMAL-CHIBANI, NADIA. "Etude conformationnelle de biomolecules par rmn et modelisation moleculaire parametres dynamiques de disaccharides et de triribonucleotides." Paris 6, 1995. http://www.theses.fr/1995PA066541.
Full textTODESCHI, NATHALIE. "Etude conformationnelle par rmn et modelisation moleculaire d'analogues de l'acide glutamique, agonistes potentiels des recepteurs glutamatergiques. Etude des relations structure-activite." Paris 6, 1997. http://www.theses.fr/1997PA066179.
Full textLARUE, VALERY. "Etude conformationnelle par rmn et modelisation moleculaire d'analogues de l'acide glutamique comme sonde de la carboxylase vitamine k dependante." Paris 6, 1996. http://www.theses.fr/1996PA066227.
Full textAMM, MICHEL. "Etude structurale et analyse conformationnelle par rmn #1h, #1#3c, #1#5n de nouveaux agents modulateurs de la resistance multi-drogues." Paris 6, 1994. http://www.theses.fr/1994PA066301.
Full textDALLERY, LAURENCE. "Etude stereochimique et conformationnelle par rmn a haut champ de steroides de la famille des oestrogenes fonctionnalises en position 9 ou 12." Paris 6, 1995. http://www.theses.fr/1995PA066061.
Full textCEOLIN, FREDERIQUE. "Synthese de fragments d'arn par la methode au phosphotriester en phase liquide et sur support solide : etude conformationnelle d'hexameres comportant la methyl-5 cytidine par rmn." Paris 6, 1989. http://www.theses.fr/1989PA066090.
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