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Dissertations / Theses on the topic 'Organozinc'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Oates, L. J. "Solid phase chemistry of organozinc species." Thesis, University of Newcastle Upon Tyne, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323453.

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2

O'Mahony, Donogh John Roger. "Rearrangement and trapping of organozinc carbenoids." Thesis, University College London (University of London), 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308938.

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3

McCall, Matthew D. "Organozinc reagents : structural tailoring for synthetic applications." Thesis, University of Strathclyde, 2012. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=18805.

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Building on recent advances in zincate chemistry, but going beyond the state-of-the-art, this project sought to advance the understanding of the mechanisms involved in alkali metalmediated zincation (AMMZn), as well as design a new type of mixed-metal reagent, magnesium-zinc hybrids, focussing on their applications in nucleophilic additions to ketones and direct zinc-iodine exchange reactions. Unveiling two new applications of the alkali metal TMP-zincates [(THF)Li(TMP)ZntBu₂] (1) and [(TMEDA)Na(TMP)ZntBu₂] (3), reaction with trimethyl(phenoxy)silane (12) allowed the isolation of the first int

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4

Nutley, Caroline Joy. "The generation and reactivity of organozinc carbenoids." Thesis, University College London (University of London), 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.283714.

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5

Habtemariam, Abraha. "Sterically hindered organozinc compounds containing functional silicon centres." Thesis, University of Sussex, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.304970.

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6

Harris, Jonathan Edward. "Synthesis and characterisation studies of organozinc carboxylate complexes." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/12948.

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The motivation for this project lies in furthering the understanding of the structure and properties of organozinc carboxylate complexes, both as discrete complexes and as coordination compounds. The thesis centres on the interaction between organozinc complexes and CO2, the insertion of which forms an organozinc carboxylate complex. A series of arylzinc carboxylate species, of the general form [ArZn(O2CR)], have been synthesised and their solution structures have been studied by NMR spectroscopy (Ar = Ph, C6F5; R = Me, Ph, C6F5). NMR experiments indicate that the ligand stoichiometry of the c

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7

Deboves, Herve Jean Claude. "The application of organometallic chemistry to the synthesis of new unnatural amino acids." Thesis, University of Newcastle Upon Tyne, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324929.

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8

Aqil, Rehan. "Studies on the generation and reactivity of metal carbenoids." Thesis, University College London (University of London), 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289875.

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9

Reed, Mark Andrew. "Synthetic studies towards histrionicotoxin." Thesis, University of Sussex, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.310265.

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10

Gavryushin, Andrey. "Chiral Diphosphine Ligands and New Reactions of Organozinc Compounds." Diss., lmu, 2007. http://nbn-resolving.de/urn:nbn:de:bvb:19-65977.

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11

Fleckenstein, Julia Elisabeth. "Aggregation of Organozinc Species in Solution and Their Reactivity." Diss., lmu, 2011. http://nbn-resolving.de/urn:nbn:de:bvb:19-138280.

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12

Moore, Rebecca J. "Novel approaches to natural product synthesis using organozinc intermediates." Thesis, University of Newcastle Upon Tyne, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362516.

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13

Haraguchi, Ryosuke. "Studies on Preparation of Functionalized Organozinc Reagents via Zinciomethylation." 京都大学 (Kyoto University), 2016. http://hdl.handle.net/2433/215552.

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14

Piazza, Claudia. "New Methods for the Synthesis of Organozinc and Organocopper Reagents." Diss., lmu, 2002. http://nbn-resolving.de/urn:nbn:de:bvb:19-7413.

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15

Seel, Stephanie. "Stereoselective preparation and stereochemical behaviour of organozinc and organolithium reagents." Diss., Ludwig-Maximilians-Universität München, 2013. http://nbn-resolving.de/urn:nbn:de:bvb:19-165998.

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16

Dosa, Peter I. (Peter Ian) 1973. "Catalytic asymmetric addition of organozinc reagents to aldehydes and ketones." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/47412.

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17

Dunn, Michael J. "Synthesis of optically active unsaturated #alpha#-amino acids." Thesis, University of Newcastle Upon Tyne, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357641.

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18

Jerome, L. "The generation and reactivity of functionalised organozinc carbenoids for cyclopropane synthesis." Thesis, University College London (University of London), 2009. http://discovery.ucl.ac.uk/17481/.

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This thesis describes the generation and reactivity of functionalised organozinc carbenoids for cyclopropane synthesis with alkenes. In the introductory chapter, a brief overview of the different methods for preparation of heteroatom-functionalised cyclopropanes is presented, including [2+1] cycloaddition reactions using a carbene or carbenoid as a cyclopropanating agent with an alkene, ionic stepwise methods, and chemical modifications from existing cyclopropanes. The remainder of this chapter then focuses on previous work within our own group in this area. The second chapter presents the res

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19

Rilatt, Ian James. "Development of amino acid-derived organozinc reagents using a mechanistic approach." Thesis, University of Sheffield, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.422643.

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20

Lightowler, Stephen. "Palladium-catalysed cross-coupling reactions in the synthesis of novel organic polymers and monodisperse oligomers." Thesis, University of Hull, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342874.

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21

Gair, Susan. "New approaches to the syntheses of nikkomycin B and hypoglycin A." Thesis, University of Newcastle Upon Tyne, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363878.

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22

Popkin, Matthew Edward. "The development and application of new methods for the synthesis of organozinc carbenoids." Thesis, University College London (University of London), 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.578285.

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23

Bernhardt, Sebastian. "Magnesium halide-mediated addition of functionalized organozinc reagents to aldehydes, ketones and carbon dioxide." Diss., lmu, 2012. http://nbn-resolving.de/urn:nbn:de:bvb:19-147538.

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24

Law, Man Chun 1979. "Organometallic reaction in ionic liquids : alkylation of carbonyl compounds with organozinc and organoaluminum reagents." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=82271.

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Alkylation of carbonyl compounds with diorganozinc, organozinc halides and organoaluminium reagents has been conducted in ionic liquids. Systems studied included solvents such as N-butylpyridinium tetrafluoroborate, 1-butyl-3-methylimidazolium tetrafluoroborate and 1-butyl-2,3-dimethylimidazolium tetrafluoroborate. Interestingly, reactivities of organometallics towards ionic liquids were revealed, yielding the imidazolylidene zinc complex formation in the case of alkylation with diethylzinc. Thus, different ways of ionic liquid preparations and purification methods were studied. The rea

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25

Fleckenstein, Julia Elisabeth [Verfasser], and Konrad [Akademischer Betreuer] Koszinowski. "Aggregation of Organozinc Species in Solution and Their Reactivity / Julia Elisabeth Fleckenstein. Betreuer: Konrad Koszinowski." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2011. http://d-nb.info/1018847235/34.

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26

Seel, Stephanie [Verfasser], and Paul [Akademischer Betreuer] Knochel. "Stereoselective preparation and stereochemical behaviour of organozinc and organolithium reagents / Stephanie Seel. Betreuer: Paul Knochel." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2013. http://d-nb.info/1047543567/34.

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27

Grokenberger, Lucie [Verfasser], and Paul [Akademischer Betreuer] Knochel. "Cobalt-catalyzed cross-couplings and acylation reactions using organozinc reagents / Lucie Grokenberger ; Betreuer: Paul Knochel." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2020. http://d-nb.info/1214180361/34.

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28

Murakami, Kei. "Studies on Carbometalation of Alkynes and Nucleophilic Substitution of Chlorosilanes with Organomagnesium and Organozinc Reagents." 京都大学 (Kyoto University), 2012. http://hdl.handle.net/2433/157535.

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29

Graßl, Simon [Verfasser], and Paul [Akademischer Betreuer] Knochel. "Elaboration of electrophilic carbon heteroatom bond forming reactions using organozinc reagents / Simon Graßl ; Betreuer: Paul Knochel." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2020. http://d-nb.info/1210424398/34.

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30

Gibson, Mairi. "Organozinc and titanium reagents for synthesis of sila-substituted Î±-amino acids and 2-substituted piperidines." Thesis, University of Glasgow, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.400808.

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31

Bernhardt, Sebastian Verfasser], and Paul [Akademischer Betreuer] [Knochel. "Magnesium halide-mediated addition of functionalized organozinc reagents to aldehydes, ketones and carbon dioxide : preparation of solid salt-stabilized organozinc reagents ; preparation of functionalized organoindium reagents via magnesium insertion in the presence of InCl3 / Sebastian Bernhardt. Betreuer: Paul Knochel." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2012. http://d-nb.info/1025822005/34.

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32

Bégis, Guillaume. "Studies on the generation and use of functionalised organozinc carbenoids for the synthesis of aminocyclopropanes and related congeners." Thesis, University College London (University of London), 2004. http://discovery.ucl.ac.uk/1446526/.

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The present thesis describes a range of studies on the generation and reactivity of organozinc carbenoid species possessing adjacent nitrogen functionality for the preparation of aminocyclopropanes and related congeners. This thesis opens with two distinct introductory reviews. The first one focuses on the description of the different general methods already available for the synthesis of aminocyclopropanes. The second one is concerned with the generation and reactivity of organozinc carbenoids encountered in the literature. The results and discussion chapter firstly describes the successful g

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33

Jacob, Sarah R. "Electrochemical studies of the automotive lubricant additive zinc n-dibutyldithiophosphate." Thesis, University of Oxford, 1998. http://ora.ox.ac.uk/objects/uuid:47b29f58-1030-479c-b79e-948f0ba1f005.

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Zinc dialkyldithiophosphates (ZDTPs) are widely incorporated in lubricant formulations as anti-oxidant and anti-wear additives. Recent years have seen the emergence of considerable research aimed at defining the mode of action of these compounds. Despite this, the mechanistic action of ZDTPs in their capacity as both anti-wear and anti-oxidant agents remains ill defined. Previous investigations have used a wide variety of techniques, however, electrochemical methods have been poorly exploited. This thesis describes application of electrochemical techniques to the study of zinc ndibutyldithioph

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34

Begouin, Jeanne-Marie. "Activation de composés aromatiques et hétéroaromatiques pour la formation de liaisons C-C et C-N par catalyse au cobalt." Thesis, Paris Est, 2009. http://www.theses.fr/2009PEST0033.

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Les réactions de couplage croisé catalysées par des métaux de transition permettant la formation de liaisons C-C et C-hétéroatome sont à la base de la synthèse d’intermédiaires clefs pour la chimie pharmaceutique, la chimie supramoléculaire et la chimie des matériaux. Cependant, certains catalyseurs métalliques utilisés sont reconnus comme étant assez coûteux ou toxiques. Le développement de catalyseurs alternatifs peu coûteux et écologiques, tels que les catalyseurs à base de cobalt qui ont déjà montré leur efficacité pour la formation de liaisons C-C, fait donc l’objet d’études. Nous avons d

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35

Manolikakes, Georg. "Transition-Metal Catalyzed Cross-Coupling Reactions of Functionalized Organometallic Reagents, Nickel-Catalyzed Amination of Aryl Chlorides and Preparation and Reactions of Organozinc Reagents." Diss., lmu, 2009. http://nbn-resolving.de/urn:nbn:de:bvb:19-139921.

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36

Tüllmann, Carl Phillip [Verfasser], and Paul [Akademischer Betreuer] Knochel. "Preparation and applications of new solid organozinc reagents for the functionalization of aromatics, heteroaromatic and alkykynyl compounds / Carl Phillip Tüllmann ; Betreuer: Paul Knochel." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2020. http://d-nb.info/1209472953/34.

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37

Ellwart, Mario [Verfasser], and Paul [Akademischer Betreuer] Knochel. "New preparations and reactions of salt stabilized organozinc reagents for the functionalization of aromatics, heteroaromatics, and allylic compounds / Mario Ellwart ; Betreuer: Paul Knochel." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2016. http://d-nb.info/1150644052/34.

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38

Lutter, Ferdinand [Verfasser], and Paul [Akademischer Betreuer] Knochel. "Cobalt-catalyzed reactions utilizing organozinc reagents and a tailored magnesium amide base for the regioselective functionalization of aryl azoles / Ferdinand Lutter ; Betreuer: Paul Knochel." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2020. http://d-nb.info/1236846079/34.

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39

Schwärzer, Kuno [Verfasser], and Paul [Akademischer Betreuer] Knochel. "Highly regioselective addition of organozinc reagents to [1.1.1]propellane and Selective metalation of nitrogen containing heterocycles using 2,2,6,6-tetramethylpiperidyl bases / Kuno Schwärzer ; Betreuer: Paul Knochel." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2021. http://d-nb.info/1232176281/34.

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40

Kunz, Thomas. "Full Functionalization of the Thieno[3,2-b]thiophene Scaffold. Benzo[b]thiophenes via Intramolecular Carbomagnesiation of Alkynyl(aryl)thioethers. Preparation and Reactions of Solid Organozinc Reagents." Diss., lmu, 2011. http://nbn-resolving.de/urn:nbn:de:bvb:19-136282.

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41

Manolikakes, Georg Verfasser], and Paul [Akademischer Betreuer] [Knochel. "Transition-Metal Catalyzed Cross-Coupling Reactions of Functionalized Organometallic Reagents, Nickel-Catalyzed Amination of Aryl Chlorides and Preparation and Reactions of Organozinc Reagents / Georg Manolikakes. Betreuer: Paul Knochel." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2009. http://d-nb.info/1019930152/34.

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42

Leroux, Marcel Rainer [Verfasser], and Paul [Akademischer Betreuer] Knochel. "Late-stage functionalization of peptides and cyclopeptides using organozinc reagents and pyrrole protected 2-Aminoalkylzinc reagents for the enantioselective synthesis of amino derivatives / Marcel Rainer Leroux ; Betreuer: Paul Knochel." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2020. http://d-nb.info/1208150057/34.

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43

Urgin, Karene. "Préparation de dérivés aryl- et hétéroaryl- pyridazine(s) par voies organométalliques chimiques ou électrochimiques." Thesis, Paris Est, 2010. http://www.theses.fr/2010PEST1094.

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Les hétérocycles aromatiques sont des motifs structuraux rencontrés dans un grand nombre de substances d'intérêts biologiques ou pharmacologiques. Plus particulièrement, les pyridazines substituées font l'objet d'un intérêt grandissant pour leurs propriétés pharmaceutiques (antibactériens, anti-inflammatoires, médicaments cardiovasculaires…). De plus, les structures comportant des pyridazines peuvent également être utilisées en tant qu'agents chélatants de cations métalliques et s'ordonner en édifices utilisés en chimie supramoléculaire.Nous nous sommes donc intéressés à l'élaboration d'élémen

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44

Kunz, Thomas [Verfasser], and Paul [Akademischer Betreuer] Knochel. "Full Functionalization of the Thieno[3,2-b]thiophene Scaffold : Benzo[b]thiophenes via Intramolecular Carbomagnesiation of Alkynyl(aryl)thioethers ; Preparation and Reactions of Solid Organozinc Reagents / Thomas Kunz. Betreuer: Paul Knochel." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2011. http://d-nb.info/1017233152/34.

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45

Cai, Yingxiao. "Cobalt-catalyzed carbon-carbon bond formation by activation of carbon-halogen or carbon-hydrogen bonds." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLX039/document.

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Ce travail de thèse présente le développement de nouvelles réactions de formation de liaisons carbone-carbone. Le premier chapitre décrit la cyanation d’arylzinciques par catalyse au cobalt à partir d’une source non toxique et bénigne, le N-cyano-N-phenyl-p-methylbenzenesulfonamide (NCTS), et conduit à de bons rendements en benzonitriles correspondants. Dans cette réaction, le cobalt sert de catalyseur non seulement pour la formation des arylzinciques mais aussi pour la formation de liaisons C-CN. Les groupements fonctionnels, cétone et nitrile, sont permis lorsque le complexe de cobalt associ

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46

Pignon, Antoine. "Réactions multicomposants aux organométalliques : nouveaux développements et application à la préparation d'hétérocycles azotés." Thesis, Paris Est, 2014. http://www.theses.fr/2014PEST1035.

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Les réactions multicomposants sont des réactions faisant intervenir au minimum trois composés pour la préparation d'un produit contenant la majeure partie des atomes de départ. Elles constituent l'un des procédés les plus performants en synthèse organique. En diminuant les coûts et les rejets par rapport aux réactions classiques de chimie organique, elles sont également plus économes et plus respectueuses de l'environnement. De plus, en permettant la formation rapide et efficace d'une large librairie de molécules complexes à partir de substrats simples, elles représentent un outil à forte vale

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47

Caillé, Julien. "Réactivité d’organométalliques sur des nitriles fonctionnalisés : réactions de cyclopropanation asymétrique et double addition." Thesis, Le Mans, 2017. http://www.theses.fr/2017LEMA1028.

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Les cyclopropanes sont des motifs structuraux importants en chimie médicinale. Parmi les synthèses existantes du fragment aminocyclopropane, les réactions dérivées de la réaction de Kulinkovich, appliquées aux amides et aux nitriles, sont des méthodes simples d'accès. Cependant, il n'existe pas de version asymétrique efficace. Dans une première partie, l'étude de l'utilisation de complexes de titane optiquement actifs pour la préparation de spirolactames chiraux à partir de cyanoesters a été réalisée. Ce travail a permis de mettre au point une méthode d'évaluation rapide de ligands chiraux don

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48

Slater, Mark. "Regio and stereocontrolled palladium-catalysed allylation of organozincs." Thesis, University of Leeds, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.485638.

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Although allylic alkylation reactions under palladium catalysis have been extensively reported in the literature, the majority of publications have focused on the use of soft nucleophiles. We have investigated the use of hard nucleophiles in the allylic alkylation ' reaction. In particular, we wished to investigate if nucleophilic attack upon 1,3-nonsymmetrically disubstituted 1t-allyl palladium intermediates could be achieved with high levels of regioselectivity, a major challenge in allylic alkylation chemistry (Scheme 1). Excellent levels of regioselectivity in the nucleophilic attack of or

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49

Scheiper, Christoph [Verfasser], and Stephan [Akademischer Betreuer] Schulz. "Organozink–Chelatkomplexe für die Lactidpolymerisation / Christoph Scheiper. Gutachter: Stephan Schulz." Duisburg, 2015. http://d-nb.info/1068460490/34.

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50

PONTES, Frederico José de Santana. "Estudos teóricos modelos de catálise assimétrica e autocatálise em reação de adição de organozinco a aldeídos." Universidade Federal de Pernambuco, 2004. https://repositorio.ufpe.br/handle/123456789/8883.

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Made available in DSpace on 2014-06-12T23:03:03Z (GMT). No. of bitstreams: 2 arquivo9274_1.pdf: 1118022 bytes, checksum: 43b3ae2bb32ff463bccba53b9eaca910 (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2004<br>Foram realizados cálculos de química quântica de otimização de geometria, incluindo estados de transição, de moléculas e de complexos contendo átomos de zinco envolvidos em reações de adição de organozinco a aldeídos por meio de catálise e autocatálise assimétrica que apresentam elevados excessos enantioméricos. Os resultados

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