WorldCat Identities

Andrioletti, Bruno (1968-....).

Overview
Works: 63 works in 64 publications in 2 languages and 68 library holdings
Roles: Other, Opponent, Thesis advisor, Author
Publication Timeline
.
Most widely held works by Bruno Andrioletti
Liquides ioniques et ultrasons pour l'époxydation d'oléfines : combinaison synergique plus éco-compatible by Gregory Chatel( )

2 editions published in 2012 in French and held by 3 WorldCat member libraries worldwide

In the current context of sustainable development, the chemical industry, often pointed at by the institutions and the general public for its negative impact on humans and the environment, needs to develop more competitive and more eco-friendly synthetic routes. The preparation of epoxides from olefins is today a critical issue in terms of production of key intermediates for the chemical industry. Based on numerous studies published in the literature, this PhD thesis has aimed at investigating the potential of ionic liquids, innovative solvents with unique properties, and power ultrasound, unconventional method of activation, for the epoxidation of olefins catalyzed by metalloporphyrins. The experimental protocols used for the synthesis of the selected ionic liquids have been improved according to the principles of green chemistry and evaluated by specific indicators. Then, the mechanisms of epoxidation reactions have been evidenced thanks to the use of chiral porphyrins and the study of sonochemical parameters in ionic liquids medium. Finally, the stability of ionic liquids under ultrasonic irradiation has been studied. Their degradation products and their formation mechanisms have been identified
Inversion de valence induite par le Åh dans des complexes à deux fer by Ramachandran Balasubramanian( )

1 edition published in 2013 in English and held by 2 WorldCat member libraries worldwide

The thesis matter concerns the valence inversion in FeIIFeIII induced by deprotonation of a FeII ligand. This study is of strong interest owing to the fact this process can be described as an electron transfer induced by a proton transfer. Protons and electrons transfers play essential roles in numerous catalytic or biologic reactions and therefore understanding whether they occur in a sequential or concerted manner is presently a major endeavor. The first part of the thesis is devoted to the characterization of the first system possessing this original property. It is based on binuclear complex FeIIFeIII where the two Fe ions are bridged by a dicarboxylate and a phenoxide. The ferric ion is bound by a bis-2-picolylamine group and the ferrous ion by a similar group where a pyridine has been replaced by aniline. Deprotonation of this FeII bound aniline induces the valence inversion, the resulting anilide being bound to the FeIII ion. The aniline complex was isolated with the aniline in trans position with respect to the bridging phenoxide, but it is not stable in solution and isomerizes, the aniline group moving to a cis position upon exchange with a pyridine. The same phenomenon was observed for the anilide complex obtained through deprotonation. This phenomenon was studied by combining UV-visible, 1H-RMN and Mössbauer spectroscopies, and the thermodynamic and kinetic characteristics of the isomerization were determined. The link between the electron transfer and the proton transfer were studied by electrochemical techniques. Thorough studies by cyclic voltammetry and isotopic labeling showed that in this system the electron and proton transfers are concerted. The second section of the thesis was aimed at studying the factors susceptible to influence the electron transfer, namely the redox potentials of the two Fe sites, and the proton transfer, namely the pKa of the protic ligand. To achieve it, new complexes were prepared by modifying either the protic ligand, the aniline being replaced by a benzimidazole, or the Fe binding group, substitution of bis-2-picolylamine by bis-(2-methyl-N-methylbenzimidazole)amine. Model complexes incorporating these changes but deprived of the protic ligand were also obtained to assess their influence on the redox properties of the Fe ions. The study of the influence of redox properties was considered first. The substitution of the group complexing FeIII has not a strong influence on the structure of the protonated complex which still exists as two isomers. By contrast, after deprotonation a single isomer exists. The spectroscopic properties are mostly unchanged which shows that the electronic structure of the system is not altered significantly. The study of the influence of the acidicity was then conducted. Two complexes differing by the nature of the FeIII bound group were considered. Replacing aniline by benzimidazole does not change significantly the structural properties of the system, but the valences of the Fe ions are less localized than in the original complex. The deprotonation of benzimidazole occurs and leads to a chromophore that differs from the preceding, revealing the difference in ligands. However, a preliminary electrochemical study reveals a behavior similar to that of the original complex
Ultrasons de puissance pour le développement d'une approche éco-compatible et l'étude des mécanismes d'oxydation d'oléfines by Tony Cousin( )

1 edition published in 2019 in French and held by 2 WorldCat member libraries worldwide

In the current context of sustainable development, the chemical industries have to develop safer synthetic routes to key intermediates for humans and the environment while remaining still economically competitive. Oxidation processes are of prime importance for the production of key intermediates, such as epoxides and dicarboxylic acids, used in many sectors. Nevertheless, these processes are closely examined due to the use of toxic compounds and energy consuming and dangerous conditions that highly impacts the environment.This thesis work thus aims at developing eco-compatible olefin oxidation pathways for the production of epoxides and dicarboxylic acids by using power ultrasound as a non-conventional technique. A low-toxic oxidizing system based on hydrogen peroxide, a tungsten-based catalyst and a phase transfer catalyst has been selected to synthesize these compounds under organic solvent-free conditions. The use of ultrasound with the aforementionned oxidizing system allowed to perform alkene epoxidation and oxidative cleavage without solvent and under less energy consuming conditions than under classic heating and stirring conditions.Olefin epoxidation, studied under high frequency ultrasound in the presence of cis-cyclooctene as a model compound, allowed to evidence mechanistic information that were not accessible under silent conditions and to optimize each reaction parameter to lead to the best yields and selectivities.Dicarboxylic acid synthesis through cycloolefin oxidative cleavage, undertaken under low frequency ultrasound, allowed to study the potential of ultrasound to improve the results of the literature and to lead the reaction in shorter times. Complementary studies under ultrasonic and silent conditions lead to a complete mechanistic proposition for the formation of reaction products and by-products
Nouvelle structure BINOL-Maléimide. Applications en catalyse d'oxydation asymétrique by Simon Brenet( )

1 edition published in 2013 in French and held by 2 WorldCat member libraries worldwide

Les réactions asymétriques catalysées constituent une approche élégante au problème de l'introduction de centres stéréogène pour la synthèse de molécules complexes. Dans ce contexte, les oxydations sont notables de par la possibilité de créer en une seule étape à la fois le centre asymétrique ainsi que les fonctions dont les réactivités sont à la base des méthodologies de synthèse. La sélectivité d'un catalyseur est le plus souvent contrôlée par sa structure même. Notre groupe étudie les oxydations aérobies asymétriques par activation C-H par des analogues chiraux du N-hydroxyphtalimide (NHPI). Nous avons développé une nouvelle structure de catalyseur comportant un cœur BINOL-maléimide afin de dépasser les limitations intrinsèque des précédentes générations de catalyseurs. La première série n'a pas montré d'énantiosélectivité, cela nous a conduit a synthétiser une deuxième série dont les caractéristiques permettraient d'améliorer l'efficacité de ces catalyseurs d'oxydation aérobie asymétrique. Le développement d'un analogue portant deux iodes nous a conduit à étudier cette structure en tant que cœur de catalyseurs à base d'iode hypervalent. Nous avons analysé trois séries de ces catalyseurs pour l'oxytosylation de cétones prochirales et montré que notre structure est comparable avec celles présentées dans la littérature
Réduction stéréosélective de substrats d'intérêt pharmacologique à réactivité réduite by Jean Septavaux( )

1 edition published in 2016 in English and held by 1 WorldCat member library worldwide

In this thesis, we present new procedures for the highly stereoselective synthesis of an active pharmaceutical ingredient and initiate their implementation in continuous flow for production. We developed several procedures for the highly diastereoselective hydrogenation reactions using chemically modified commercial heterogeneous catalysts. In addition, a three step reaction pathway through hydrolysis, highly diastereoselective hydrogenation reaction and conversion back to primary amide was developed to prepare. Modular high pressure continuous reactors have been designed and a prototype has been manufactured to perform the gas/liquid/solid triphasic hydrogenation reactions. Finally, we prepared a synthesis intermediate without solvents nor additives in continuous flow using a home-made micro-reactor, dramatically increasing the productivity of the process
Développement de nouveaux catalyseurs pour la dépolymérisation de la lignine par voie d'oxydation by Raphaëlle Kieffer( )

1 edition published in 2015 in French and held by 1 WorldCat member library worldwide

Lignin is one of the most abundant biopolymers on earth. It is issued from plants and represents the largest source of aromatics in biomass. Projects aiming at depolymerizing lignin to obtain value-added small molecules for the chemical industry are more and more developed due to the high potential of this bio-resource. The goal of our project was to develop a new catalytic system for the depolymerization of lignin. We have been interested in designing new homogeneous and heterogeneous catalysts based on the known structure of the Fe(TAML) complex. We have studied their reactivity and stability under oxidative catalysis conditions, and have compared them to the characteristics of the existing Fe(TAML). To do so, the catalysis study has been realized on lignin small model molecules to avoid the analytical problems related to a polymer backbone. In a first hand, we will present the strategy of functionalization of the known TAML ligand to design new complexes to be grafted on a silica support. In a second hand, we will talk about the results of oxidative catalysis in homogeneous and heterogeneous conditions, and the influence of the ligand structure change on the activity of the catalysts
Synthèse et valorisation de ligands dipyrrométhène bis-triazole by Charles Guérin( )

1 edition published in 2016 in French and held by 1 WorldCat member library worldwide

Analogues structuraux des porphyrines et des Salens, des ligands de type dipyrrométhène bis-phénol ont été étudiés dans notre groupe, notamment sous forme de complexes pour la catalyse d'oxydation. L'activité catalytique de ces complexes étant faible, il a été proposé de remplacer les phénols par des triazoles. L'objet de cette thèse était d'étudier et de valoriser une nouvelle famille de ligands dipyrrométhène bis-triazole.Plusieurs voies de synthèse ont d'abord été étudiées et optimisées pour accéder à ces nouveaux ligands. Nous nous sommes attachés ensuite à valoriser ces nouveaux ligands selon plusieurs axes.Un de ces ligands a été testé en reconnaissance d'anions, ainsi que les dérivés monotriazolium et bis-triazolium. Les triazoliums ont également permis l'accès à des métallocomplexes carbéniques, qui ont été étudiés.Par ailleurs, les métallocomplexes des dipyrrométhène bis-triazole ont été préparés et caractérisés, y compris par électrochimie. Des essais d'utilisation en oxydation ont été entrepris. Enfin, la synthèse de BODIPYs® liposolubles et hydrosolubles a été réalisée. Les propriétés optiques ont été mesurées puis ces dérivés fluorescents ont été testés pour le marquage fluorescent de cellules HeLa
Catalyse homogène verte pour la valorisation des bioressources abondantes : glycérol et CO2 by Samira Zaher( )

1 edition published in 2020 in French and held by 1 WorldCat member library worldwide

In the current context of paucity of petroleum resources, biomass is considered as an alternative and renewable fuel source as well as in the manufacture of chemicals. Thus, the chemical transformation of bioressources such as glycerol and carbon dioxide requires a significant industrial impact. In this work, and with the aim of glycerol valorization, we first developed a new green method for the acetalization of glycerol with various carbonyls, catalyzed by FeCl3.6H2O which is inexpensive, non-toxic and eco-friendly. This method, which consists in transforming the glycerol into cyclic acetals under mild conditions without solvent, provides interesting results: acetalization with ketones lead to selectivities ranging from 97-100% towards 1,3-dioxolanes while with aldehydes selectivities up to 75% towards 1,3-dioxanes. Also, high TON and TOF of up to 2626 and 535 min-1 were obtained respectively. Then, using the same FeCl3.6H2O catalyst, the esterification of glycerol as a second way of glycerol valorization was investigated. Thus acetylation with acetic acid allows complete conversion of glycerol after 3 hours with an acetic acid/glycerol ratio of 3 at 60°C. Diacetin (DAG) and triacetin (TAG) are formed exclusively after 21 h at 60°C with a DAG/TAG ratio of 40/60 maintained almost constant when acetic acid is in excess of 15 to 25 times relative to glycerol, even at 100°C. While the DAG/TAG ratio obtained is approximately 70/30 when substituting FeCl3.6H2O by FeCl2.4H2O. Finally, we have studied the synthesis of cyclic carbonates by CO2/epoxide coupling with zinc complexes based on N4 tetra-dentate ligands. Thus, the zinc complex of N,N'-bis(2-p-tosylaminobenzylidene)-1,2-cyclohexanediamine, [Zn (Cy-Ts)] combined with tetrabutylammonium iodide (TBAI) in a stoichiometric ratio (1:1) or with triethylamine (TEA), allow cyclic carbonates to be obtained with a high yield of up to 99% (TON up to 4900) in solvent free condition at 120°C under 10 bars of CO2 pressure where the CO2/epoxy ratio ≈ 1. As the high activity of our catalytic systems is obtained in the absence of halides and inspired by the literature, we propose two plausible pathways of the CO2/epoxide coupling mechanism without halide involvement. The zinc complex, which acts as a Lewis acid, may not follow the 18-electron rule allowing like that the Zn metal center to probably activate both substrates (epoxide and CO2) at the same time
Dendrimères fonctionnalisés comme revêtement déperlant sans fluor pour le domaine textile by Elodie Biancarelli( )

1 edition published in 2021 in French and held by 1 WorldCat member library worldwide

With regulations aimed at eliminating the use of fluorinated derivatives, the textile sector needs alternatives to these compounds. Currently, the fluorine-free coatings can reach the performances of fluorinated derivatives pour the water-repellency but do not repel oils. The aim of the DEPERFLEX II project is to find a coating displaying water- and oil-repellencies without using fluorine by using both a surface structuration and a chemical treatment. In this context, this thesis addresses the synthesis of various water-repellent compounds. These compounds are 2,2 bis(hydroxymethyl)propionic acid (bisMPA)-based dendrimers that will be covalently grafted on a textile surface of Nylon 6-6. Several functions have been tested to functionalize the dendrimer outer region : phenyl, lauryl, adamantane, silicones or polyhedric oligomeric silsesquioxane (POSS). Performance evaluation on “mirror-polished” surface have proved the effectiveness of POSS functionalization to bring water-repellency with a maximum effectiveness pour iBuPOSS but also to help the surface to repel the oils, particularly with iOctPOSS and adamantane functionalizations
Évaluation de nouveaux catalyseurs homogènes pour la valorisation du CO2 en carbonates cycliques by Mary Djoufak( )

1 edition published in 2013 in French and held by 1 WorldCat member library worldwide

Carbohydrates and platform molecules as polar building blocks for the design of bio-based surfactants by Xiaoyang Yue( )

1 edition published in 2022 in English and held by 1 WorldCat member library worldwide

The use of biomass as a renewable resource to produce surfactants has become an important area. The objective of this thesis is to study the use of biobased furan aldehydes in an original strategy for the design of amphiphilic systems based on their coupling by Morita-Baylis-Hillman (MBH) reaction with non-polar acrylic partners, in particular secondary N-alkylacrylamides. Their physico-chemical properties were examined as part of a collaboration with the UCCS laboratory in Lille led by Prof. Véronique Nardello-Rataj. The strategy was then extended to the reaction of glyoxylic acid with long chain acrylates and acrylamides leading to amphiphiles. This is the first systematic study of the use of glyoxylic acid in MBH reaction. The properties of the products were characterized in Lille. The primary results indicate their good ability to reduce the surface tension of water at low concentrations. In this one-step, atom-saving strategy, glyoxylic acid is used directly from its commercial and inexpensive aqueous solution, under mild conditions (aqueous or bio-based solvents, no high temperature), with a simple protocol. A parallel project concerned glycosteroids and their thermotropic behavior, within the framework of a collaboration on glycolipid liquid crystals with Professor John W. Goodby of the University of York. The architecture of this series of glycosteroids has a saccharide head, connected to a steroid unit via a methylene spacer, and carrying a fatty side chain of variable length. This work has finalized the preparation of a family of products which are currently being evaluated in the hands of our colleagues at York. The two subtopics studied in this thesis contribute to a better understanding of interface or self-assembly properties and illustrate the importance of amphiphilie in molecular architectures
Conception et synthèse de glyco-sondes fluorescentes pour des applications en détection by Lei Dong( )

1 edition published in 2019 in English and held by 1 WorldCat member library worldwide

With scientific and social progress, various methods for the specific and sensitive detection of metals, proteins and other biomolecules are widely utilized in environmental protection, disease surveillance, drug therapy, agricultural production, industry and other significant areas. Fluorescent probes are widely developed based on ICT, PET, FRET and other fluorescence mechanisms, and applied to the detection of contaminants or in cell imaging. But the ACQ effect usually quenched the fluorescence intensity and thus limited the applications of organic probes in cell imaging and living systems. Therefore, the concept of aggregated-induced emission (AIE) appears as a possible solution to these problems and several fluorescent glycoclusters, glyco-probes and glyco-complexes were designed and reported for biological analysis. Our first project aimed to design and synthesize fluorescent glyco-polymers with multiple glycosides for cell targeting and drug delivery while fluorescence will allow the detection of the targeted cells. To overcome the ACQ effect and interference from natural biological background fluorescence, we conjugated dicyanomethylene-4H-pyran (DCM) and tetraphenylethene (TPE) to obtain near-infrared AIE fluorescent probes. The glycosides provided good water solubility and self-assembly in water led to detection systems and imaging cancer cells. TPE-based glycopolymers were synthesized from TPE monomers incorporating two monosaccharides by CuAAC conjugation and these monomers were polymerized by either CuAAC or thiol-ene “click” reactions. The TPE-based glycopolymers did not display a large chain length (typically less than 7 units) and the expected fluorescent properties could not be reached. We then designed and synthesized glyco-dots self-assembled by DCM probes and TPE-based glycoclusters. The glyco-dots displayed high water-solubility and selective response to peroxynitrite (ONOO-) both in vitro and in cell assays. The glyco-dots could detect endogenous and exogenous ONOO- but no specific cell recognition. We designed and synthesized AIE fluorescent probes which could self-assemble with TPE-based glycoclusters. The resulting glyco-dots were readily water soluble and displayed excellent sensitivity and selectivity for thiophenol detection in vitro and in environmental water samples. We finally combined both TPE and DCM moieties to synthesize a novel AIE fluorophore (TPE-DCM) with long-wavelength emission. Then conjugation with glycosides through CuAAC led to AIE fluorescent probes with long-wavelength emission, excellent water-solubility. Application to the detection of glycosidases in vitro and in cell assays or animal models was possible with these probes
Eco-compatible syntheses of bio-based solvents for the paint and coating industry by Nydia Ileana Guzman Barrera( )

1 edition published in 2018 in English and held by 1 WorldCat member library worldwide

La production mondiale de solvants représente environ 28 millions de tonnes, dont 5 millions en Europe. L'industrie des peintures et des revêtements en est la principale consommatrice (46 % des solvants produits). Dans ce domaine, les solvants les plus utilisés sont l'acétate d'éthyle, l'acétate de butyle et la méthyl éthyl cétone. Ces molécules sont actuellement synthétisées industriellement à partir de substrats d'origine pétrochimique en présence de catalyseurs homogènes et dans des conditions énergivores. Afin de réduire l'impact environnemental des peintures et revêtements, la substitution de ces solvants issus du pétrole par leurs équivalents bio sourcés a été étudiée dans le cadre du projet européen ECOBIOFOR (FP7/2007-2013/Grant Agreement no 605215), dans lequel se sont inscrits ces travaux de thèse. Ainsi, l'objectif de cette thèse a été de développer, à partir de synthons renouvelables, des procédés de production de ces trois solvants simples à mettre en oeuvre, peu coûteux et respectueux des principes de la chimie verte. Pour la production des acétates d'éthyle et de butyle, deux voies de synthèse ont été étudiées en présence d'une résine échangeuse d'ions comme catalyseur hétérogène. La première voie utilise de l'acide acétique et l'alcool biosourcé correspondant (éthanol ou le butan-1-ol); la seconde met en jeu l'anhydride acétique à la place de l'acide acétique. Dans ces synthèses, quatre résines ont été testées. Des études cinétiques et thermodynamiques ont permis de choisir la résine la plus performante et les conditions de réaction les plus adaptées. Cette étude a finalement permis de proposer un procédé de coproduction des deux acétates efficace et innovant dans lequel la purification des acétates est facilitée, la production de déchets et coproduits est réduite et le recyclage de la résine est possible. L'évaluation des performances des acétates synthétisés dans des formulations de laques nitrocellulosiques et de vernis polyuréthanes a permis de montrer que ces molécules répondent au cahier des charges en terme de séchage, viscosité, formation de film, brillance et adhérence. Enfin, le bénéfice environnemental du processus de coproduction a été mis en évidence par le calcul des métriques de la chimie verte et l'analyse du cycle de vie des esters produits. De plus, l'influence de l'origine des alcools, biosourcés ou pétrochimiques, sur l'impact environnemental a été évaluée. L'impact sur le changement climatique est réduit avec l'utilisation des synthons bio-sourcés. Pour la synthèse de la méthyl éthyl cétone, nous avons décidé d'étudier la réaction de décarboxylation de l'acide lévulinique, molécule plateforme biosourcée disponible et peu coûteuse. Contrairement au principal procédé industriel qui repose sur la déshydrogénation du butan-2-ol d'origine fossile, la méthode développée dans ces travaux utilise des conditions plus respectueuses de l'environnement puisqu'elle est réalisée dans l'eau en présence de persulfate de potassium et d'un sel d'argent à une température raisonnable (100°C). L'évaluation du rôle de chacun des réactifs a permis de proposer un mécanisme réactionnel complexe de cette synthèse. L'étude de l'évolution des espèces en phase solide réalisés par diverses analyses spectroscopiques (RMN du solide, DRX, XPS, AES et MEB) a permis de mettre en évidence les espèces impliquées dans la décarboxylation et finalement de proposer une méthode permettant d'obtenir des conversions et des rendements élevés
Tetraamido- (TAML) and tetraaza- (cyclam) metallo-complexes as mild catalysts for the sustainable oxidation of alcohols by Zhan Zhang( )

1 edition published in 2018 in English and held by 1 WorldCat member library worldwide

Fe(TAML) complexes have been investigated a lot in recent years. Our group has investigated the simplest Fe(TAML) catalyst for its oxidation with high efficiency. The purpose of this thesis was to functionalize the complex Fe(TAML-Me2) for different uses.One of the functionalizations was to have a hexyl-substituted triazole “tail”, which could influence the physicochemical properties of the iron complex in homogeneous catalysis. Conversely, a silicon tailed-one was designed to be grafted on an inorganic support for a use in heterogeneous catalysis. At last, the purpose of the fluorinated tail was to increase the solubility of the metallocomplex in fluorinated solvents for a potential use in a biphasic mixture that could favor the recyclability of the catalyst. The other purpose of the thesis was to develop an environmental benign catalytic oxidation system with a bioinspired catalyst MnII(Me2EBC)Cl2. We disclosed that the MnII(Me2EBC)Cl2 complex could catalyze the oxidation of a series of benzylic and aliphatic alcohols with H2O2. Conversions of the alcohols to corresponding carbonyl compounds reached 98% with good to excellent selectivity
Molecular tectonics : functionalized dipyrrins for the construction of metallo-organic architectures by Fan Zhang( )

1 edition published in 2017 in English and held by 1 WorldCat member library worldwide

The aim of this work was to develop new approaches for the functionalization of mono- and bis-dipyrrin derivatives at positions 1, 5, 9, which can be used as tectons for self-assembly with various metal centers for the construction of discrete entities and/or infinite periodic molecular networks. In the first part, a series of new 1,9-divinyldipyrrin derivatives functionalized by coordinating groups in positions 1 and 9 via a Knoevenagel reaction and bearing another coordinating or solubilizing unit in position 5 has been explored. The assembly of these ligands with B(III) or Zn(II) centers provide luminescent complexes, which can be used as metallatectons for the construction of heterometallic coordination polymers emissive in the solid state. In the second part, the synthetic strategy for novel species via a post-functionalization of 2,2'-bisdipyrrin derivatives featuring reactive groups at their periphery such as an aldehyde, amine or carboxylic acid moiety has been explored. On one hand, a tetrapyrrolic open-chain ligand bearing benzaldehyde units at the meso position was exploited for the preparation of a strapped helicate based on imine bond formation. On the other hand, the introduction of a p-benzoic acid on one/both side of the 2,2'-bisdipyrrin backbone has been employed for the formation of novel symmetric and dissymmetric amide-bearing derivatives. The assembly of these novel ligands with Zn(II) and Ni(II) cations has been particularly explored
Valorisation des métallocomplexes des Triazole-Appended Dipyrromethenes by Aurélie Rago( )

1 edition published in 2020 in French and held by 1 WorldCat member library worldwide

Les ligands dipyrrométhène-bis-triazoles (TADs) sont étudiés dans notre groupe depuis plusieurs années. L'objet de cette thèse était d'étudier et de valoriser différents métallo-complexes issus de ces ligands et de différents métaux. Pour la version tétra-aza, des complexes de cuivre et de nickel ont ainsi été obtenus, et ont été caractérisés de différentes manières afin d'apporter des informations structurales et électroniques. La possibilité de transformer un triazole en carbène mésoionique (MIC) a été étudiée et a permis de découvrir des complexes carbène-argent originaux donnant l'accès à des complexes de palladium possédant des structures innovantes. Enfin, la modification du squelette d'origine a permis d'isoler une version macrocyclique du ligand. Le complexe de zinc ML correspondant a présenté une bonne activité dans la réaction de carbonatation. Le complexe de zinc ML2 obtenu à partir du ligand d'origine a servi de modèle pour conduire à la formation d'un [2]-caténane. La comparaison des propriétés optiques des BODIPYs obtenus à partir des formes ouverte, macrocyclique et du [2]-caténane a ensuite été réalisée
Développement et évaluation de nouveaux systèmes catalytiques pour une chimie plus respectueuse de l'environnement by Moulay Youness El Kadiri( )

1 edition published in 2012 in French and held by 1 WorldCat member library worldwide

Synthèse de polymères supramoléculaires pour le renfort de bitume by Thomas Coustham( )

1 edition published in 2017 in French and held by 1 WorldCat member library worldwide

Ligands dérivés de saccharides et, ou supportés par un bras poly(éthylène) glycol : synthèse et applications en catalyse organométallique by Ouissam Adidou( )

1 edition published in 2009 in French and held by 1 WorldCat member library worldwide

La synthèse de deux familles de ligands a été envisagée. La première famille de ligands concerne la préparation de nouveaux ligands dérivés de la D-glucosamine ou du D-glucose qui seront engagés dans la réaction de substitution allylique de type Tsuji-Trost en phase homogène. La deuxième famillede ligands concerne la préparation de ligand supportés par un bras poly(éthylène) glycol et dérivés dela D-glucosamine ou de la di-(2-pyridyl)méthylamine. Ces ligands hydrosolubles ont été engagés dans deux réactions pallado-catalysées en phase aqueuse à savoir la substitution allylique de type Tsuji-Trost et la réaction de couplage croisé de type Suzuki-Miyaura, respectivement
 
moreShow More Titles
fewerShow Fewer Titles
Audience Level
0
Audience Level
1
  General Special  
Audience level: 0.00 (from 0.00 for Liquides i ... to 0.00 for Liquides i ...)

Alternative Names
Bruno Andrioletti wetenschapper

Languages
French (14)

English (7)