Добірка наукової літератури з теми "Furanes – Synthèse (chimie)"
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Дисертації з теми "Furanes – Synthèse (chimie)":
Soro, Yaya. "Synthèse et applications de furylcarbinols en chimie macro et glycohétérocyclique." Lyon 1, 2001. http://www.theses.fr/2001LYO10082.
Rigal, Luc. "Matière végétale et chimie fine : synthèse de l'hydroxyméthyl-5 furanne carboxaldéhyde-2." Toulouse, INPT, 1987. http://www.theses.fr/1987INPT038G.
Sanda, Komla. "Chimie fine du D-fructose : synthèse du chloromethyl-5 furannecarboxaldéhyde-2." Toulouse, INPT, 1989. http://www.theses.fr/1989INPT034G.
Bouda, Hamilton. "Réactions en milieu hétérogène solide-liquide faiblement hydraté : généralisation de la synthèse d'époxydes : synthèse du furyl-2 thiirane et de ses homologues." Toulouse, INPT, 1987. http://www.theses.fr/1987INPT005G.
Sene, Mame Birame. "Chimie des agroressources : nouveaux procédés de synthèse de l'acide 2,5-furane dicarboxylique à partir de l'acide mucique." Toulouse, INPT, 1994. http://www.theses.fr/1994INPT058G.
Compain, Philippe. "Réarrangement thermique d'α-hydroxyimines scalémiques : approche synthétique du squelette 1-azaspiro[5,5]undécane : synthèse de γ-butyrolactones catalysée par des sels de palladium(II)". Lyon 1, 1997. http://www.theses.fr/1997LYO10120.
Dheur, Julien. "Hydroacylation carbonylante d'alcynes : nouvelle voie d'accès à des cétones alpha, béta-insaturées." Electronic Thesis or Diss., Lille 1, 2008. http://www.theses.fr/2008LIL10113.
By their difonctionnality and, then, by their special reactivity, alpha,beta-unsaturated ketones are involved in numerous synthesis to access complexe molecules. The development of new pathways for their fonnation is a major field of research interest. This work deals with the application of carbonyaltive hydroacylation reaction on terminal akynes for enones synthesis. After an optimisation step and the development of this system, we were able to obtain different enones in good yield and selectivities. ln addition, the use of propargyl alcohols as substrate leads to the fonnation of furane derivatives. A mecanistic investigation upon this reaction has been done with the help of analytical tools, especially NMR under high pressure of carbon monoxide. This study has brought several informations concerning the catalytic cycle of this transformation
Benameur, Leila. "Réactions d'addition-cyclisation de la 2-éthoxybut-2-énal N,N-diméthylhydrazone sur des P-quinones : synthèse de dérivés du naphtofurane et de la furoquinoléine : étude de l'activité cytotoxique in vitro." Lyon 1, 1995. http://www.theses.fr/1995LYO1T182.
Nasr, Kifah. "Enzyme-catalyzed synthesis of polyesters by step-growth polymerization : a promising approach towards a greener synthetic pathway." Electronic Thesis or Diss., Université de Lille (2018-2021), 2021. http://www.theses.fr/2021LILUR030.
Enzyme-catalyzed polymerization have been witnessing a growing attention in recent years as an eco-friendly substitute to metal-based catalysis. The objective of our work is to synthesize a series of polyesters via enzymatic catalysis based on different aliphatic and aromatic diols and diesters, where we focused on the influence of reaction parameters, monomer structures, and depicted the advantages and limitation of enzymatic catalysis in polymer synthesis. The enzyme used throughout our work was Novozym 435, a lipase from Candida antarctica, immobilized on an acrylic resin. In Chapter 1, we reviewed the different methods and approaches used in the literature to synthesize polymers via enzymatic catalysis. In Chapter 2, we performed the reaction between hexane-1,6-diol and diethyl adipate via a two-step polycondensation approach where we monitored the effect of certain parameters on the number average molecular weight (Mn). The influence of temperature, vacuum, and the amount of enzyme loading were determined using a central composite design. Other factors such as the reaction media, oligomerization time, and catalyst recyclability were also assessed. In Chapter 3 furan-based copolyesters were synthesized, where we showed that we can incorporate higher amounts of furan when using aliphatic diols with longer chains such as dodecane-1,12-diol. In Chapter 4, levoglucosan, an anhydrous 6-carbon ring structure and a pyrolysis product of carbohydrates such as starch and cellulose, was reacted against different chain length diesters in the presence of aliphatic diols and Novozym 435 as a catalyst. The polyesters produced were limited in their number average molecular weight (Mn) and the amount of levoglucosan that was successfully incorporated into the polymeric structure. Nevertheless, by increasing the chain length of the diester, we were able to produce a copolymer containing higher amounts of levoglucosan and a higher molecular weight
Borghèse, Sophie. "Toward green processes organic synthesis by catalysis with metal-doped solids." Thesis, Strasbourg, 2013. http://www.theses.fr/2013STRAF008/document.
Nowadays, the modern chemical industry has to deal with increasing environmental concerns, including the disposal of waste and its economic impact, or the diminution of important worldwide resources such as transition metals. In this Ph.D. thesis, we aimed to bring improvement in this area by the development of green processes, based on the use of recyclable heterogeneous catalysts. By combining the catalytic properties of several metal cations with the properties of solid catalysts such as polyoxometalates or zeolites, we were able to set up new tools for organic synthesis. Silver-doped polyoxometalates proved to be very efficient catalysts in the rearrangement of alkynyloxiranes to furans. Acetals and spiroketals were synthetized by dihydroalkoxylation of alkynediols under catalysis with silver-zeolites. As a perspective, we highlighted the potential applications of such green procedures in the total synthesis of more complex molecules. The first results suggested that these environmental friendly processes should gain increasing interest in the future