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Dissertations / Theses on the topic 'Olefination'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 April 2022

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1

Blakemore, Paul Richard. "Development and application of the one-pot Julia olefination." Thesis, University of Glasgow, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.284730.

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2

Pedro, Filipe Miguel Esteves. "Application of rhenium and ruthenium organometallic complexes in carbonyl olefination." [S.l.] : [s.n.], 2007. http://mediatum2.ub.tum.de/doc/618877/document.pdf.

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3

Smith, Nicholas David. "A total synthesis of herboxidiene A." Thesis, University of Southampton, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242395.

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4

Strand, Daniel. "Methods for Asymmetric Olefination Reactions; Development and Application to Natural Product Synthesis." Doctoral thesis, Stockholm : Chemical Science and Engineering, KTH, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4088.

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5

Middleditch, Michael. "Towards a catalytic carbonyl olefination reaction using metal oxo complexes and ketenes." Thesis, University of Nottingham, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.430565.

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6

Gold, J. B. "Development of a dithiane-Julia olefination reaction : towards the synthesis of callipeltoside A." Thesis, University of Cambridge, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.599468.

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This doctoral thesis is divided into three sections: Part A, Part B and Part C. Part A is subdivided further into three chapters. In the first of these, an overview of the Julia olefination reaction process as well as its variants is provided, followed by a short description of the application of dithiane methodology in natural product synthesis. The second chapter describes the development of a new methodology based on Julia olefination of substrates derived from dithiane and dithiolane sulfones. Summary and conclusions then follow in chapter three. Part B of this thesis is also subdivided in

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7

Sun, Xiang Verfasser], Tobias [Akademischer Betreuer] Ritter, and Carsten [Akademischer Betreuer] [Bolm. "Decarboxylative functionalization: catalytic olefination and polyfluoroarylation of alkylcarboxylic acids / Xiang Sun ; Tobias Ritter, Carsten Bolm." Aachen : Universitätsbibliothek der RWTH Aachen, 2021. http://d-nb.info/1240390920/34.

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8

Niwetmarin, Worawat. "(-)-Cytisine : an entry to a multipoint chiral scaffold : Zweifel olefination towards functionalised alkenes and C-glycals." Thesis, University of Bristol, 2017. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.730848.

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9

Bedore, Matthew William. "Synthesis of Key Fragments Contained in the Framework of Amphidinol 3." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1211485773.

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10

Shuter, Emily Clare. "Studies toward the synthesis of the microsclerodermin natural products." Faculty of Science, School of Chemistry, University of Sydney, 2006. http://hdl.handle.net/2123/1970.

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Doctor of Philosophy (PhD), Science<br>A concise stereo-selective synthesis of a protected form of APTO 1, an unusual amino acid component of microsclerodermin C 2, was undertaken. Sequential Sharpless Asymmetric Aminohydroxylation (AA) and Asymmetric Dihydroxylation (AD) reactions were used to introduce the chiral amino and hydroxyl groups. Specific directing groups were chosen to ensure high regio- and enantio-selectivity in these reactions. The target compound was reached in a linear reaction sequence of fourteen steps. The strategy was designed to generate common intermediates which cou

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11

Ollinger, Christian G. "A Study of Intermolecular and IntramolecularHorner-Wadsworth-Emmons Olefination of Substituted5-(Diethoxyphosphoryl)-N-acylpiperidin-4-ones." NCSU, 2000. http://www.lib.ncsu.edu/theses/available/etd-20000729-112252.

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<p>This research has focused on extending the utility of previously synthesized 5-iodo-2,3-dihydro-4-pyridones. The initial conversion involved introducing a phosphonate group by nickel-catalyzed cross-coupling with the vinyl iodide at the C-5 position. Using a Horner-Wadsworth-Emmons reaction, the phosphonate ester was then converted to various olefins in moderate to high yields. Having an aldehyde present on the substituted 5-(diethoxyphosphoryl)--acylpiperidin-4-one allowed cyclization to occur thereby providing a bicyclic enone.<P>

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12

Lloyd, Matthew. "Rhodium(II)-catalysed C–H insertion/olefination strategy towards α-methylene-γ-butyrolactones : applications in natural product synthesis". Thesis, University of York, 2016. http://etheses.whiterose.ac.uk/13069/.

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This Thesis describes the development of telescoped rhodium(II)-catalysed transformations of α-diazo(diethoxyphosphoryl)acetates for the formation of α-methylene-γ-butyrolactones. An overview of synthetic approaches to α-methylene-γ-butyrolactones is given in Chapter 1, in addition to a discussion of published Rh(II)-catalysed C–H insertion reactions. Previous efforts in the Taylor group have established effective methods for the synthesis of α-methylene-γ-butyrolactones, although these require relatively complex functionality in the precursors. The research in this Thesis focuses on the devel

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13

Shearouse, William C. "Development and mechanistic understanding of ball milling as a sustainable alternative to traditional synthesis." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1353089340.

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14

Pinho, Vagner Dantas. "Abordagens divergentes na preparação de alcaloides indolizidínicos." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/75/75133/tde-30072013-093827/.

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O presente trabalho descreve 3 abordagens divergentes para obtenção do esqueleto bicíclico presente nos alcaloides indolizidínicos. A primeira abordagem consiste no desenvolvimento de um novo método de preparação de diazocetonas α,β-insaturadas a partir da reação de Horner-Wadsworth-Emmons (HWE) entre diazofosfonato e aldeídos. As dizocetonas α,β-insaturadas obtidas foram utilizadas como bloco de construção do esqueleto cabocíclico indolizidínico, onde o intermediário chave foi obtido através do rearranjo de Wolff. A segunda estratégia consiste no desenvolvimento do acopl

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15

Karaca, Özden [Verfasser], Fritz E. [Akademischer Betreuer] Kühn, Fritz E. [Gutachter] Kühn, Klaus [Gutachter] Köhler, and Stephan A. [Gutachter] Sieber. "Applications of N-Heterocyclic Carbene Complexes: From Catalytic Aldehyde Olefination to Anticancer Therapy / Özden Karaca ; Gutachter: Fritz E. Kühn, Klaus Köhler, Stephan A. Sieber ; Betreuer: Fritz E. Kühn." München : Universitätsbibliothek der TU München, 2018. http://d-nb.info/115354587X/34.

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16

Karaca, Özden Verfasser], Fritz Elmar [Akademischer Betreuer] [Kühn, Fritz E. [Gutachter] Kühn, Klaus [Gutachter] Köhler, and Stephan A. [Gutachter] Sieber. "Applications of N-Heterocyclic Carbene Complexes: From Catalytic Aldehyde Olefination to Anticancer Therapy / Özden Karaca ; Gutachter: Fritz E. Kühn, Klaus Köhler, Stephan A. Sieber ; Betreuer: Fritz E. Kühn." München : Universitätsbibliothek der TU München, 2018. http://nbn-resolving.de/urn:nbn:de:bvb:91-diss-20180220-1416452-1-6.

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17

Melgar, Gliseida Zelayaran. "Estavamicina : estudos sinteticos." [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/248469.

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Orientador: Luiz Carlos Dias<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Quimica<br>Made available in DSpace on 2018-08-12T11:13:03Z (GMT). No. of bitstreams: 1 Melgar_GliseidaZelayaran_D.pdf: 8992583 bytes, checksum: 4cacbcdc703a19bccdf5bea13368488a (MD5) Previous issue date: 2008<br>Resumo: Em 1995 Miao e colaboradores relataram o isolamento da estavamicina (1), um novo produto natural, membro da família dos pirrolocetoindanos, a partir de uma cultura líquida de Streptomyses sp., isolada de uma amostra de terra coletada na Índia. A estavamicina contém uma interess

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18

Bouyanzer, Abdelhamid. "Préparation et propriétés d'aldéhydes α-silylés et de leurs dérivés". Rouen, 1993. http://www.theses.fr/1993ROUES051.

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Une méthode d'accès aux éthers d'énols silylés β-silylés par condensation d'halogéno et de pseudo-halogénotrialkylsilanes sur lithio trialkyles siloxyalcènes est décrite. Une migration 1-3 du silicium de l'oxygène vers le carbone a été constatée dans le cas des éthers d'énols silylés β-silylés dissymétriques après détermination des structures par RMN haut champ. La migration du groupement silylé de l'oxygène vers le carbone dans les lithiotriméthyl ou triéthyl siloxyalcène a permis pour la première fois de préparer une série d'aldéhydes α-silylés à groupement peu encombrant. Ceux-ci par additi

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19

Rodrigues, Nuno. "Recherche et évaluation d'antalgiques originaux : les activateurs des canaux potassiques TREK-1." Thesis, Clermont-Ferrand 2, 2011. http://www.theses.fr/2011CLF22181.

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Les antalgiques utilisés aujourd’hui sont des produits anciens et plusieurs d’entre eux datent du 19ème siècle. La morphine demeure l’antalgique de référence pour les douleurs dites par excès de nociception, mais elle est à l’origine d’effets indésirables gênants et graves. Il a été démontré que l’effet antalgique de la morphine passait par l’activation des canaux potassiques TREK-1. Les travaux de recherche ont donc comme objectif la recherche d’antalgiques originaux activateurs de TREK-1. Nous avons synthétisé des activateurs de TREK-1 décrits dans la littérature puis nous avons évalué leur

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20

Eriksson, Ludvig. "Transition Metal Mediated Transformations of Carboranes." Doctoral thesis, Uppsala University, Organic Chemistry, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-3324.

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<p>This thesis describes the use of copper and palladium to mediate transformations of carboranes, especially <i>p</i>-carborane.</p><p>1-(1-<i>p</i>-carboranyl)-<i>N</i>-methyl-<i>N</i>-(2-butyl)-3-isoquinolinecarboxamide, a carborane containing analogue of the peripheral benzodiazepine receptor (PBR) ligand PK11195, has been synthesised. A key step in the reaction is the copper (I) mediated coupling of p-carborane with ethyl 1-bromo-isoquinoline-3-carboxylate. </p><p><i>p</i>-Carborane has been arylated on the 2-<i>B</i>-atom in high yields, using the Suzuki–Miyaura reaction. Thus the reacti

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21

Baumann, Andreas Nicolas [Verfasser], and Dorian [Akademischer Betreuer] Didier. "Construction and transformation of unsaturated four-membered carbo- and heterocycles and new methods in boron mediated olefinations / Andreas Nicolas Baumann ; Betreuer: Dorian Didier." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2020. http://d-nb.info/1204365482/34.

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22

Chen, Chih-Wei, and 陳智偉. "The Olefination Reactions of Propargylic Dithioacetal." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/69614674839448669518.

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碩士<br>國立臺灣大學<br>化學研究所<br>96<br>The new olefination methods of alkyl substituted propargylic dithioacetals are described in this thesis. It can be divided into two parts for discussions. In previous results, Alkyl substituted propargylic dithioacetals treating with butyl lithium then were allowed to react with carbonyl compounds to form homopropargylic alcohol with high yields and highly regioselective. This result showed different selsctivity comparing with aryl substituted propargylic dithioacetals. It seemed that different regioselectivies arose from different substiuents. Alkyl substituted

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23

Mari, Frank. "Molecular modeling of the Wittig olefination reaction." 1991. https://scholarworks.umass.edu/dissertations/AAI9207433.

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The Wittig reaction has been investigated with the use of a molecular modeling approach utilizing empirical molecular mechanics calculations (MMX) and semiempirical molecular orbital methods (MNDO-PM3). The MNDO-PM3 method reproduces the geometric and thermodynamic parameters, previously calculated using a more elaborate ab initio molecular orbital approach, of the "mythical Wittig half-reaction". MNDO-PM3 calculations and subsequent analyses using bond orders and localized molecular orbitals indicates that the transition states of the mythical Wittig half-reaction and the Wittig half-reaction

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24

Hsu, Shuo-Yu, and 徐碩輿. "Application of Fluorine-Containing McCarthy Reagent in HWE Olefination." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/01567355043177812474.

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碩士<br>國防大學理工學院<br>化學工程碩士班<br>103<br>Deprotonation of McCarthy reagent (EtO2P(O)CHFSO2C6H5) with n-Butyl lithium in tetrahydrofuran solvent affords [(EtO)2P(O)CFSO2C6H5Ph]-Li+ carbanion as nucleophilic reagent, which reacted with aldehyde (RCHO) or ketones (R1C(O)R2) via HWE (Horner-Wadsworth-Emmon) olefination to synthesize a series of 1-fluoro-1-sulfoneethylene (RCH=CFSO2C6H5and R1R2C=CFSO2C6H5). Those kinds ofcompounds put sulfone (SO2C6H5)functional group at α-carbon, and different of substituted group at β-carbon. Sulfone group (SO2C6H5) are easily toconvert to tin group (SnBu3) which as

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25

Wu, Ming-Che, and 吳明哲. "Study on the Olefination of Fluorine-containing Michaelis-Becker reagent." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/84514452471866193962.

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碩士<br>國防大學理工學院<br>化學工程碩士班<br>101<br>Esterification of phosphorus trichloride (PCl3) with 2,2,2-trifluoroethanol (CF3CH2OH) gives bis(2,2,2-trifluoroethyl)phosphate ((CF3CH2O)2P(O)H). Treat- ment of (CF3CH2O)2P(O)H with sodium hydride under -42oC gives (CF3CH2O)2P(O)-Na+ carbanion. Reaction of (CF3CH2O)2P(O)-Na+ anion with ethyl bromoacetate (BrCH2CO2Et) at 15oC via Michaelis-Becker reaction affords ethyl [bis(2,2,2)trifluoroethoxy)phosphinyl] acetate ((CF3CH2O)2P(O)CH2CO2Et) which the structure was confirmed by 1H NMR, 13C NMR, 19F NMR, 31P NMR, Elementary Analysis (EA) and High Resolution Mas

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26

Chang, Yan-Ren, and 張延任. "Studies on a Novel Safety-Catch Linker Cleaved by Modified Julia Olefination." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/04437181883842436706.

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碩士<br>國立中央大學<br>化學研究所<br>94<br>We have known many natural product with double bone maybe have bio-activity in natural world. In order to develop a method of synthesizing quickly various compounds with double bond in organic chemistry. We think the combinatorial chemistry is very good tools in our study. Now We also have known safety-catch linker playing a important role in solid phase. A useful safety-catch linker must have many advantages in synthesis process include easy to take, low cost, stable in any condition and so on. That is a key point we develop a novel safety-catch linker to use in

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27

Chen, Yeng-Nan, and 陳彥男. "Construction of alpha-GalCer Library via Fluorous Chemistry and Julia-Kociensky Olefination." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/64808149216913853644.

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博士<br>國立清華大學<br>化學系<br>99<br>Alpha-galactosyl ceramide (alpha-GalCer) has been known to bind to the CD1d receptor on dendritic cells and activate invariant natural killer T (iNKT) cells, which subsequently secrete T-helper-cell 1 (Th1) and Th2 cytokines, which correlate with anti-infection activity and the prevention of autoimmune diseases, respectively. alpha-GalCer elicits the secretion of these two cytokines nonselectively, and thus, its effectiveness is limited by the opposing effects of the Th1 and Th2 cytokines. Therefore there were many alpha-GalCer derivatives syntheized by different s

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28

Pedro, Filipe Miguel Esteves [Verfasser]. "Application of rhenium and ruthenium organometallic complexes in carbonyl olefination / Filipe Miguel Esteves Pedro." 2007. http://d-nb.info/985347031/34.

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29

Misa, Mateusz. "Badania nad nową strategią syntezy metabolitów zearalenonu." Praca doktorska, 2015. http://ruj.uj.edu.pl/xmlui/handle/item/42949.

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30

Reynolds, Kelly Anne. "Synthesis of allenes via titanium substituted ylides : mechanistic and synthetic studies of a double olefination reaction /." 1996. http://wwwlib.umi.com/dissertations/fullcit/9701302.

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31

Chang, Shiuan-kai, та 張軒愷. "Steric and Electronic Effects around the α-Carbon on β-Amino Alcohols in the Benzyne-Induced Olefination". Thesis, 2012. http://ndltd.ncl.edu.tw/handle/03847100051464230641.

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碩士<br>國立中央大學<br>化學研究所<br>100<br>A new, stereospecific olefin synthesis from β-Amino alcohols: β-Amino alcohols was treated with CS2 in acetonitrile to produce 1,3-thiazolidine-2-thiones. 1,3-Thiazolidine-2-thiones was then added to a solution of 2-(trimethylsilylphenyl) trifluoromethanesulfonate and CsF in acetonitrile at room temperature. This would make [3 + 2] cycloaddition to give olefin products, along with side product N-benzyl-2-imino-1,3-benzodithioles. There are various factors like stereospecificity, hinderance of substituents, and electronic repulsion effect the olefination reaction

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32

CHANG, CHI-HAO, та 張智皓. "Palladium-Catalyzed Decarboxylative and C-H Olefination of β,γ-Unsaturated Carboxylic Acid Derivatives with Vinyl Halides". Thesis, 2019. http://ndltd.ncl.edu.tw/handle/me8kbh.

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33

Ollinger, Christian G. "A study of intermolecular and intramolecular Horner-Wadsworth-Emmons olefination of substituted 5- (Diethoxyphosphoryl)-N-acylpiperidin-4-ones /." 2000. http://www.lib.ncsu.edu/etd/public/etd-40221129610062101/etd.pdf.

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34

LI, YAN-XIANG, and 李艷鄉. "Kinetic study of the catalyzed olefination via the reaction of organophosphonate with benzaldehyde in an aqueous two-phase system." Thesis, 1988. http://ndltd.ncl.edu.tw/handle/37014433229120944580.

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35

HUANG, YEN-HSIANG, and 黃彥翔. "Tandem Decarboxylative C-H Olefination/Rearomatization of 1-Alkyled-Cyclohexa-2,5-diene-1-Carboxylic Acids with Styrenes : Synthesis of Ortho-alkylated Stilbenes." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/ued92a.

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36

TSAI, HUNG-CHANG, and 蔡鴻昌. "Tandem Decarboxylative C-H Olefination/Rearomatization of 1-Alkyled Cyclohexa-2,5-diene-1-Carboxylic Acids with Acrylates: Rapid Access to Ortho-alkylated Vinyl Arenes." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/pp6ybm.

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37

Davi, Michaël. "Développement d'une nouvelle méthodologie d'oléfination catalysée par les complexes de cuivre : applications dans des réactions en tandem." Thèse, 2008. http://hdl.handle.net/1866/6553.

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