Contents
Academic literature on the topic 'Alcènes fluorés'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Alcènes fluorés.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "Alcènes fluorés"
Banu, Andreea, Raluca Stan, Hubert Matondo, Émile Perez, Isabelle Rico-Lattes, and Armand Lattes. "Époxydation des alcènes mixtes fluorés–hydrogénés par le système RuCl3–bipyridine–NaIO4. Rôle du ligand azoté." Comptes Rendus Chimie 8, no. 5 (May 2005): 853–57. http://dx.doi.org/10.1016/j.crci.2005.02.002.
Full textDissertations / Theses on the topic "Alcènes fluorés"
Emmanouil, Vlassios. "Nouveaux amphiphiles fluorés à visée biomédicale : synthèse et applications." Toulouse 3, 1997. http://www.theses.fr/1997TOU30076.
Full textBalague, Jean. "Synthèse, caractérisation et application de nouveaux télomères et silanes fluorés." Montpellier 2, 1994. http://www.theses.fr/1994MON20123.
Full textRatsimihety, Harijaona Gabriel. "Etude de l'introduction de groupements fluorés dans les silanes et les silicones." Montpellier 2, 1993. http://www.theses.fr/1993MON20017.
Full textGenin, Patrick. "Etude de la rétention du perfluoroisobutylene sur charbons actifs." Lyon 1, 1990. http://www.theses.fr/1990LYO10039.
Full textLaporte, Romain. "Développement de nouveaux composés antibactériens fluorés : application à la synthèse d’inhibiteurs de la thymidylate synthase flavine dépendante (ThyX) de la bactérie Mycobacterium Tuberculosis." Caen, 2016. http://www.theses.fr/2016CAEN2038.
Full textRecently, a new enzyme from thymidylate synthase class has been identified (ThyX). As all the enzymes of this class, ThyX calatyzes the conversion of dUMP to dTMP through the methylation of the C-5 position but only in prokaryote organisms. Among these microorganisms, there are several dangerous pathogens for humans such as Mycobacterium Tuberculosis, the bacteria responsible for tuberculosis. ThyX is a specific enzyme and has no structural or sequential similiarity with eukaryote thymidylate synthase enzyme (ThyA). Biological pathways of theses enzymes are different and ThyX is the only one to need a flavine (FAD) to co-catalyze this transformation. Selective inhibition of flavine-dependent thymidylate synthase ThyX is logically an attractive target for drug discovery. The main part of this PhD work is dedicated to develop new inhibitors selective to flavine-dependent thymidylate synthase. For this purpose, fluorinated acyclonucleoside synthesis has been considered to get around in vivo stability problem with N-glycosidic bond and phosphate moiety. In the past years, our laboratory has developed a straightforward access to fluoroalkylidenes and we are interested in cis-fluorobutenyle moiety preparation to use this sequence as a mimic of the osidic part in a nucleoside. From highly functionalized sulfones with nucleic bases previously made by aza-Michael addition, modified Julia olefination allowed us to prepare a large variety of fluoroalkylidenes. Four-membered heterocyclic ketones’ reactivity in the modified Julia reaction has also been studied. From resulting oxetanylfluoroalkylidenes, we have developed an E-selective ring-opening reaction of the oxetane ring. Thanks to this new methodology, resulting bromo-alcohol derivatives’ reactivity has also been studied and new acyclonucleoside preparation has been undertaken
Glatigny, Stéphane. "Vers la synthèse de difluorométhylphosphonates et de difluorométhylphosphonothioates d’inositol : analogues non hydrolysables de phosphates d’inositol : synthèse de phosphono(thio)boronates fluorés." Rouen, 2004. http://www.theses.fr/2004ROUES050.
Full textThis work is focusing on the use of the difluorométhylphosphonate and difluorométhylphosphonothioate groups as non-hydrolysable isosters to the monoesterified phosphates. The synthesis of such inositol phosphate analogues calls for the interaction of the lithium anion of dialkyl difluoromethylphosphonothioate with a protected oxopyrannose. This is then followed by a radical deoxygenation process. The key step of the sequence relies on the Ferrier rearrangement. In addition, a new method of the difluoroalkene synthesis was developed from one of the difluoromethylphosphonothioate intermediates. Finally, the preparation of a novel class of difluorophosphonothioates, featuring a boron-difluorocarbon-phosphorus unit is described
Trevino, Leo. "Les (perfluoroalkyl)alcanes et alcènes : étude du comportement amphiphile dans les systèmes dispersés et applications aux vecteurs d'agents thérapeutiques." Nice, 1993. http://www.theses.fr/1993NICE4700.
Full textBarreto, Shauna. "Utilisatiοn de la catalyse phοtοredοx au cuivre et de la mécanοchimie pοur la synthèse de cοmpοsés fluοrés. Etude de l'activité biοlοgique de nοuveaux cοmpοsés fluοrés et de peptides." Electronic Thesis or Diss., Normandie, 2025. http://www.theses.fr/2025NORMR009.
Full textThe fluorine atom plays a crucial role in modulating the physicochemical properties of organic molecules. Its incorporation into the structure of drugs has expanded rapidly and significantly. Due to its strong electronegativity and lipophilicity, the trifluoromethyl moiety is commonly used by the pharmaceutical industry. In addition, among fluorinated compounds, monofluoroalkenes are also of great importance in medicinal chemistry. In this context, we were interested in the development of synthetic pathways to incorporate trifluoromethyl and monofluoroalkene moieties into molecules. In a first project, we developed a method of chlorotrifluoromethylation of internal alkenes, mediated by visible light and catalyzed by a copper-based photoredox catalyst. The reaction took place with full regioselectivity under mild reaction conditions using commercially available CF3SO2Cl as the source of trifluoromethyl and chlorine, leading to a synthesis of value-added chemicals with atom economy. The molecules obtained were tested in vitro to evaluate their cytotoxicity against cancer cell lines as well as for their antifungal and antibacterial activities. In a second project, a solvent-free synthesis was developed by mechanochemistry to access monofluoroalkenes. The very fast, solvent-free one-step reaction under mild conditions has limited the environmental impact of synthesis. The protocol showed general efficacy and tolerance to a wide range of carbonyl substrates, including aldehydes and ketones, and fluorophosphonoacetate derivatives.Chronic pain affects 20 to 30% of the world's population and represents billions of dollars in annual costs. It represents a real public health issue that makes it essential to continue scientific research in this field to better understand chronic pain and develop innovative solutions to improve the quality of life of patients. Peptides are prime targets in the synthesis of new drugs. The neurotensin peptide (8-13) has demonstrated its efficacy in the treatment of pain, by modulating nociceptive signals, by binding to neurotensinergic receptors, mainly NTS1 and NTS2. Nevertheless, binding to the NTS1 receptor causes harmful side effects, which is not the case when binding to NTS2. Thus, a high selectivity towards the NTS2 receiver is essential. However, the high selectivity of the NT(8-13) peptide towards the NTS1 receptor does not make this peptide a compound of choice for pain treatment. Thus, synthesizing peptide analogues capable of selectively interacting with NTS2, with the aim of improving their efficacy and pharmacological profile while minimizing side effects, represents a challenge of choice. In this context, this chapter describes the synthesis of compounds capable of binding to neurotensinergic receptors while maximizing selectivity towards NTS2. For this, peptide synthesis of JMV 7323, JMV 7324, JMV 7325 and JMV 7326 on solid support was performed. In addition, the resulting peptides must be able to cross the blood-brain barrier. For this, the angiopep-2 peptide was coupled to the JMV 7324 peptide to be used as a shuttle to reach the blood-brain barrier. The compounds were tested in vivo in models of formalin-induced pain showing promising results and side effects were studied
Jierry, Loïc. "Catalyseurs d'époxydation asymétrique d'oléfines trans : Nouvelles cétones α-fluorées chirales." Université Louis Pasteur (Strasbourg) (1971-2008), 2003. http://www.theses.fr/2003STR13216.
Full textThe design, synthesis and use of a-fluorinated ketone for asymetric epoxydation of non-functionnalised trans olefins, particularly, methyl 4-methoxycinnamate are described in this work. A study on the structure of different ketones had showed that both, the substituent at 5 and axial position on cyclohexanone, and, the substitution on isopropyl group in ketones derived from (+)-Dihydrocarvone, are important features for the design of efficient catalyst. Enantioselectvities between 74% and 90% was obtained with quantitative conversions on (E)-Stilbene, Triphenylethylen and 3,4-Dihydronaphtalen-1-phenyl. Also, 74% ee with 100% conversion was obtained by using methyl 4-methoxycinnamate as subtrat. All ketones prepared and used were stable under reaction conditions and can be recovered. When the fluorine atom in a position of cyclohexanone is equatorial, it was observed an inversion of enantioselectivities compare to ketones with fluorine in axial position. We have postulated an hypothesis based on the Curtin-Hammett principle in which the inversion cycle of cyclohexanone was involved. Such kind of ketones derived from (+)-Dihydrocarvone was used for enantioselective oxydation of silyl enols ethers. Chiral hydroxyketones was obtained by this way with enantioselectivities up to 74%
Laurent, Philippe. "Synthèse de molécules difonctionnelles hautement fluorées." Montpellier 2, 1992. http://www.theses.fr/1992MON20061.
Full textBooks on the topic "Alcènes fluorés"
Chambers, R. D., B. Boutevin, B. Améduri, V. V. Bardin, and Dolbier W. R. Jr. Organofluorine Chemistry: Fluorinated Alkenes and Reactive Intermediates. Springer, 2010.
Find full text