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Dissertations / Theses on the topic 'Diynes'

Author: Grafiati
Published: 4 June 2021
Last updated: 17 February 2022

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1

Murray, Christopher. "Synthesis and polymerisation of novel 1,3-Diynes." Thesis, Heriot-Watt University, 1999. http://hdl.handle.net/10399/603.

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2

Baklouti, Mohamed. "Prépolymères oligoamides diynes téléchéliques : synthèse et polymérisation thermique." Bordeaux 1, 1993. http://www.theses.fr/1993BOR10575.

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Les recherches decrites dans ce memoire s'inscrivent dans le cadre de l'approche par precurseurs diynes telecheliques de l'elaboration directe de reseaux tridimensionnels thermostables, par reticulation thermique sans elimination de produits volatils. Apres une analyse preliminaire des donnees bibliographiques, la premiere partie apporte des elements nouveaux a la comprehension du mecanisme de polymerisation thermique de modeles monoacetyleniques, d'abord grace a une etude cinetique globale, ensuite a travers la separation et l'identification d'un cyclotrimere symetrique caracteristique ainsi
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3

Shively, Raymond John Jr. "The iron mediated cyclocarbonylation of alpha,omega-diynes." Case Western Reserve University School of Graduate Studies / OhioLINK, 1994. http://rave.ohiolink.edu/etdc/view?acc_num=case1061298115.

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4

Péron, Daniel. "Activation de diynes et synthèse de complexes allénylidène ruthénium." Rennes 1, 1993. http://www.theses.fr/1993REN10137.

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L'activation d'alcynes et de pentadiynes y-cc-cc-car#2(oy) par des complexes arene ruthenium (ii) permet l'acces a de nouveaux composes carbene, allenylidene et diynyl ruthenium. L'intermediaire metallacumulene a entite (ru=c=c=c=c=car#2#+ peut etre genere par activation du diyne y-cc-cc-car#2(oy) (y:h, me#3si) ou par transformation de complexes diynyl ruthenium. Il a pu etre isole lorsque ar:p-nme#2-c#6h#4. Des complexes cis et trans bisdiynyl platine ont pu etre synthetises et isoles. Des acetyleniques silyles me#3si-ccr permettent la formation de complexes carbene, allenylidene et diynyl ru
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5

Warren, Sandra. "Palladium-catalyzed silylstannylation-cyclization of 1,6-diynes ; axial chirality in (Z, Z)-1,3-dienes /." The Ohio State University, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=osu991135931.

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6

Coste, Alexis. "Etudes méthodologiques autour des TMC-95A-D et des dibromoalcènes." Versailles-St Quentin en Yvelines, 2010. http://www.theses.fr/2010VERS0041.

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Le cancer est l’une des principales causes de mortalité à travers le monde : selon une étude récente de l’Organisation Mondiale de la Santé, le cancer serait à l’origine de 7,9 millions de morts (soit 13% de la mortalité) en 2007 et ce chiffre ne cesse d’augmenter. Malgré de nombreux efforts pour le développement de nouveaux agents anticancéreux, il y a toujours un besoin flagrant de molécules alliant efficacité et sélectivité et le développement de nouveaux inhibiteurs du protéasome est une voie très prometteuse pour le traitement du cancer. C'est dans cette optique que nous nous sommes intér
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7

Ostrovsky, Dennis. "Palladium-catalyzed hydrostannations of allenes and 1,6-diynes, a facile route to useful synthetic intermediates." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq29231.pdf.

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8

Kutney, Amanda Marie. "Stereoselective Cyclization of Functionalized 1,n-Diynes Mediated by [X-Y] Reagents [(R2N)2B-SnR′3]. Synthesis and Properties of Atropisomeric 1,3-Dienes." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1285062312.

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9

GUEUGNOT, SYLVIE. "Action d'alcynes terminaux sur des halogenures propargyliques : syntheses de beta-diynes et l'allenynes; application a la synthese de metabolites d'acides gras." Paris 6, 1992. http://www.theses.fr/1992PA066167.

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1) l'action des acetyleniques terminaux sur des halogenures propargyliques en presence de chlorure de tetrabutylammonium et d'iodure cuivreux a permis d'obtenir regio et chimioselectivement des diynes et des triynes separes par un groupement methylene. La semi-reduction des poly-ynes ainsi obtenus par le p. 2 nickel a permis d'obtenir des dienes, enynes, polyenes de geometrie determinee, utiles dans la synthese de substances naturelles. 2) l'action des acetyleniques terminaux sur des tosylates et des halogenures propargyliques en presence de catalyseurs pd#o-cu#i) a permis d'obtenir de facon r
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10

Leutzow, Juliane Linda [Verfasser]. "Rhodium-Catalyzed [2+2+2] Cycloaddition of Oxime Ethers and Diynes and Synthetic Approaches Towards a Novel Benzoquinolinone Alkaloid / Juliane Linda Leutzow." Konstanz : Bibliothek der Universität Konstanz, 2015. http://d-nb.info/1088797350/34.

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11

Spittler, Michael [Verfasser], Constantin [Gutachter] Czekelius, and Klaus [Gutachter] Schaper. "Frustrated Lewis Pair-Catalysed Functionalisation of Alkenes with Iodoperfluoroalkanes and Gold-Catalysed Desymmetrisation of 1,4-Diynes / Michael Spittler ; Gutachter: Constantin Czekelius, Klaus Schaper." Düsseldorf : Universitäts- und Landesbibliothek der Heinrich-Heine-Universität Düsseldorf, 2019. http://d-nb.info/1190883988/34.

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12

Gallou, Isabelle. "Selective palladium- and rhodium-catalyzed processes : I. enantioselective synthesis of tetrahydroquinolines, II. the asymmetric hydroformylation reaction, III. silylstannylation-cyclization of diynes and alleneynes /." The Ohio State University, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=osu1486457871782787.

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13

Kerner, Florian Tobias [Verfasser], Todd B. [Gutachter] Marder, Udo [Gutachter] Radius, and Dirk [Gutachter] Kurth. "Reactions of rhodium(I) with diynes and studies of the photophysical behavior of the luminescent products / Florian Tobias Kerner ; Gutachter: Todd B. Marder, Udo Radius, Dirk Kurth." Würzburg : Universität Würzburg, 2021. http://d-nb.info/123801836X/34.

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14

Apte, Sandeep D. Apte Sandeep D. "Part I. Palladium-catalyzed silylstannylations of diynes dynamic behavior and funtionalization of helically chiral dienes. Part II. Palladium-catalyzed silylstannane additions to epoxyalkynes and their titanium(III)-mediated cyclizations /." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1158609567.

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15

Apte, Sandeep D. "Part I. Palladium-catalyzed silylstannylations of diynes: dynamic behavior and funtionalization of helically chiral dienes Part II. palladium-catalyzed silylstannane additions to epoxyalkynes and their titanium(III)-mediated cyclizations." The Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=osu1158609567.

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16

Alvarez-Galan, Léonardo. "Synthèse de N-hydroxyphtalimides hautement fonctionnalisés via la cycloaddition [2+2+2] de a,w-diynes catalysée par des complexes d'iridium et de rhodium : évaluation de leur activité en tant que catalyseurs d'oxydation aérobie." Grenoble 1, 2009. http://www.theses.fr/2009GRE10126.

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Une nouvelle stratégie de synthèse pour la préparation de N-hydroxyphtalimides par le biais de la cycloaddition [2+2+2] entre le maléimide et des α,ω-diynes catalysée par le système [IrCl(COD)]2/DPPE ou [RhCl(COD)]2/DPPE a été développée. Cette nouvelle méthodologie de synthèse nous a permis de préparer 17 N-hydroxyphtalimides originaux en seulement quatre étapes et avec des rendements compris entre 47 et 85%. Nous avons aussi utilisé cette approche dans la préparation de 5 nouveaux N-hydroxyphtalimides possédant deux axes d'atropoisomèrie et 2 phtalimides originaux énantio- et atropoisomèriqu
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17

Rhee, Jong. "PartI. Synthesiss of N-heterocyclic furanosides and pyranosides via 5- or 6-Exo-trig-radical cyclization. Part II. (a) Palladium catalyzed silystannylative cyclization of diynes and allenynes (b) Regioselective Diels-Alder reaction of vinyls." The Ohio State University, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=osu1078850581.

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18

Rhee, Jong Uk. "Part I. Synthesis of n-heterocyclic furanosides and pyranosides via 5- or 6-exo-trig-radical cyclization. Part II. (a) Palladium catalyzed silystannylative cyclization of diynes and allenynes. (b) Regioselective Diels-Alder reaction of vinylsilane and its application to Papulacandin D core structure." Connect to this title online, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1078850581.

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Thesis (Ph. D.)--Ohio State University, 2004.<br>Title from first page of PDF file. Document formatted into pages; contains xx, 456 p.; also includes graphics Includes bibliographical references (p. 449-456). Available online via OhioLINK's ETD Center
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19

Clarke, L. P. "The chemistry of osmium and ruthenium diyne clusters." Thesis, University of Cambridge, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.597722.

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The work describes in this dissertation concerns the syntheses, reactivities and characterisation of some triosmium and tetraruthenium carbonyl clusters with conjugatively unsaturated diynes. While the alkyne chemistry of osmium and ruthenium carbonyl clusters has been explored extensively over the past 20 years, the analogous chemistry of diynes has been less thoroughly explored. Chapter 1 gives a general introduction to the area of carbonyl clusters and their alkyne derivatives in chapter 1, with an emphasis on the group 8 transition metals. Recent and related diyne work is also discussed. T
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20

Hope-Weeks, Louisa Jane. "The formation of macrocycles containing dicobalt-coordinated diyne units." Thesis, University of Cambridge, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.621041.

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21

Lloyd, Christopher. "The Photo-initiated Bergamn Cyclisation of Z-hex-3-ene-1,5-diyne." Thesis, University of Bristol, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.499954.

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22

Onay, Ahmet. "Religious attitudes and Muslim identity, with reference to Turkish university students." Thesis, University of Leeds, 2000. http://etheses.whiterose.ac.uk/532/.

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The thesis explores religious attitudes and Muslim identity in Turkey from a social psychological perspective with reference to university students. Religious attitudes are explored in relation to three components: cognitive, behavioural and affective religious attitudes, whereas Muslim identity is examined through macro and micro levels, and observations. In order to investigate these issues, qualitative and quantitative methods are employed. Research hypotheses are developed on the basis of a review of secondary materials related to Islam in the Turkish context, Muslim identity and the measu
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23

Wigginton, James Richard. "The reactions of diynols at a diruthenium centre." Thesis, University of Bristol, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.274641.

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24

Kılınç, Erdal Güngör İbrahim. "Diyet problemlerinin optimizasyonu ve bir uygulama /." Isparta : SDÜ Sosyal Bilimler Enstitüsü, 2007. http://tez.sdu.edu.tr/Tezler/TS00605.pdf.

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25

Perpall, Mark Wilson. "Synthesis, reactions, and applications of bis-ortho-diynyl arene (BODA) monomers, polymers, and derivatives." Connect to this title online, 2007. http://etd.lib.clemson.edu/documents/1181668761/.

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26

Sari, Ozkan. "Synthèse métallo-catalysée d'acyclonucléosides phosphonates, de nucléosides et d'hétérocycles à visée antivirale." Phd thesis, Université d'Orléans, 2013. http://tel.archives-ouvertes.fr/tel-00977805.

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Les nucléosides modifiés représentent aujourd'hui une famille incontournable dans la chimiothérapie antivirale. Leur développement progressif au cours de ces 50 dernières années a permis d'endiguer de nombreuses épidémies et d'apporter des traitements efficaces contre de nombreux virus tels que les herpès, les hépatites ou encore le VIH. Toutefois, les infections virales continuent de représenter un problème de santé publique majeur en raison de l'émergence de souches virales résistante aux traitements existants ainsi que l'apparition de nouveaux virus. A ce titre, le développement de nouveaux
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27

Hoffmann, Barbara. "Syntèse et caractérisation d'analogues de cyclodextrine comportant une unité buta-1,3-diyine ou 1,2,3-triazole /." Zürich : [s.n.], 2002. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=14832.

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28

林智豪 and Chi-ho Aaron Lam. "Syntheses, characterization and photophysics of polynuclear copper (I)and silver (I) complexes containing monoynyl, diynyl and chalcogen-type ligands." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31240434.

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29

Lam, Chi-ho Aaron. "Syntheses, characterization and photophysics of polynuclear copper (I) and silver (I) complexes containing monoynyl, diynyl and chalcogen-type ligands /." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B22055034.

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30

Lacombe, Fabrice [Verfasser]. "Synthesis of (E)-cycloalkenes and (E,E)-cycloalkadienes by ring closing diyne or enyne-yne metathesis, semi-reduction and studies towards total synthesis of myxovirescin A1 / Fabrice Lacombe." Dortmund : Universitätsbibliothek Technische Universität Dortmund, 2004. http://d-nb.info/1011532921/34.

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31

Yakar, Emine Enise. "The interaction between Islamic legal methodologies and social context in the light of the contemporary practice of iftā’ : a case study of two institutions." Thesis, University of Exeter, 2018. http://hdl.handle.net/10871/34552.

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The non-binding Islamic legal rulings or opinions (fatwās), which are issued by Muslim scholars or Islamic religious institutions in response to questions asked by Muslim individuals may be said to represent the most dynamic genre of (past or present) Islamic legal literature. It was traditionally the case that the practice of iftā’ resided in the individual authority and effort of Muslim scholars. However, after national and international Islamic religious institutions were established at the beginning of the twentieth century, this practice has largely become the responsibility of specific
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32

Omollo, Ann Ondera. "TOTAL SYNTHESES OF (3S, 18S, 4E, 16E)-EICOSA-1,19-DIYNE-3,18-DIOL, (+)-DURYNE, (+)-DIDEOXYPETROSYNOL A, CICUTOXIN AND ATTEMPTS TOWARD THE TOTAL SYNTHESIS OF PETROSYNOL: POLYACETYLENIC POTENT ANTICANCER NATURAL PRODUCTS." Oxford, Ohio : Miami University, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=miami1217877029.

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33

Merle, Philippe. "Utilisation de l'hexa-2,4-diyne-1,6-diol comme source de carbone : accès aux céramiques carbures, nitrures et carbonitrures à partir d'oxydes et d'alcoxydes métalliques. Essais d'intercalation dans le système HNbWO6-nH2O." Montpellier 2, 1997. http://www.theses.fr/1997MON20210.

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La polymerisation thermique ou photochimique de l'hexa-2,4-diyne-1,6-diol (1) conduit a la formation de poly(hexa-2,4-diyne-1,6-diol). Sa pyrolyse sous argon conduit a du carbone de type graphite. La carboreduction thermique sous argon de melanges hexa-2,4-diyne-1,6-diol/oxyde metallique prealablement irradies sous uv conduit a la formation du carbure metallique alors que celle sous atmosphere reactive d'azote donne un nitrure ou un carbonitrure metallique. Les temperatures et durees de pyrolyse sont inferieures a celles relevees dans la litterature pour des melanges oxyde/carbone. Les ceramiq
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34

Bruce, Benjamin. "Governing islam abroad : the Turkish and Moroccan Muslim fields in France and Germany." Thesis, Paris, Institut d'études politiques, 2015. http://www.theses.fr/2015IEPP0001.

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Au cours des cinquante dernières années, les communautés turques et marocaines sont devenues les deux groupes diasporiques les plus importants en Europe occidentale, notamment en Allemagne et en France. Les États d’origine de ces populations ont développé de nombreuses politiques envers leurs ressortissants à l’étranger, parmi lesquelles l’islam occupe un lieu privilégié. Depuis des décennies, les instances étatiques officielles chargées de la gouvernance du religieux en Turquie et au Maroc, à savoir la Présidence des Affaires Religieuses (Diyanet İşleri Başkanlığı) et le Ministère des Habous
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35

山下, 健., and Ken YAMASHITA. "Studies on Catalytic Cyclization of 1,6-Diynes via Bifunctional Ruthenium Carbene Complexes." Thesis, 2012. http://hdl.handle.net/2237/16464.

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36

Strom, Kyle. "Halocyclizations and cycloisomerizations of 1,6-diynes, and sequence-defined, self-replicating polymers." Thesis, 2017. https://hdl.handle.net/2144/20866.

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The exploration of chemical space in search of molecules that perturb or mimic biological systems is essential to understanding human biology. The first part of this dissertation (Chapters 1-4) describes efforts to aid in the exploration of biologically relevant space through the invention of new π-cyclization methodologies. This strategy can be viewed as part of a “top-down” approach to investigating biology: the construction of small molecule drugs or probes which modify the behavior of the existing system. The second part of this dissertation (Chapter 5) describes preliminary efforts to exp
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37

Chang, Chia-sen, and 張家森. "Ruthenium-Catalyzed Cascade Reactions of Diynes with Norborandiene：Synthesis of new Norbornene Derivatives." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/70538255178654171317.

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碩士<br>國立成功大學<br>化學系碩博士班<br>96<br>Reactions of 3,4-diethynylacenaphthalenes 20 and 1,6-heptadiynes 32 with norbornadiene 1 in the presence of ruthenium catalyst produces norbornene derivatives (5α,5aα,9aα,10α)-5,10-diaryl-5,5a,6,9,9a,10-hexahydro-1H-6β,9β- naphtho[b,f:g]acenaphthalenes 21 and (4α,4aα,8aα,9α)-4,9-di(aryl)-2,3,4,4a, 5,8,8a,9-octahydro-1H-5β,8β-methanocyclopenta[b]naphthalenes 36. Ruthenium complex [RuCl2Cp*]2 is a suitable catalyst. Reaction temperature at 130 oC and a mixture solvent of isopropanol and p-xylene make the reaction more efficient. Based on our optimized reactio
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38

Chang, Shih-Yun, and 張詩筠. "Study on the Cyclization Reaction of Aromatic Propargylic Diynes on Ruthenium Metal Center." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/56468358422018645849.

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39

Lin, Chi-Fong, and 林志峰. "Design and Synthesis 7-sulfonyl-3-heptene-1,5-diynes as DNA Cleavage Agent." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/85772784322531966909.

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碩士<br>高雄醫學院<br>藥學研究所<br>83<br>(Z)-7-磺醯-3-己烯-1,5-雙炔是以1,2-dihalo或1,2-bistriflate 等化合 物 , 以下列步驟來合成的 : 先以 Pd 金屬催化而與 propargyl alcohol, 受 tetrahy- dropyrane 保護之 propargyl alcohol 和以 quinoline 衍生而來之 acetylene 進行偶合反應, 而再將偶合所得之 alcohol 製成 sulfide, 再以 mCPBA 氧化即得 . 這一類結構之分子其 在鹼性下會被催化而異構化成 (Z)-eneyne-allene-sulfone, 且會經由 Myers cyclization 而生成一個雙自由基之中間體, 然後得到一個環化之 終產物; 或在親核試劑 ( 如 DNA) 存在下 ,(Z)- eneyne-allene-sulfone 可作為一個很好的 Michael receptor.且它們也 被測試出對生
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40

Tokan, Wajdi Mohammad Izzat. "Palladium-Catalyzed Oligocyclizations of Some 2-Bromotetradec-1-ene-7,13-diynes Under Heck Reaction Conditions." Doctoral thesis, 2003. http://hdl.handle.net/11858/00-1735-0000-0006-B0BF-B.

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41

Lu, WenDer, and 盧文德. "Synthesis of Phenanthridinones and Biaryls via Anionic Cycloaromatization of 1-Aryl-3-decen-1,5-diynes." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/42004159061960805616.

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碩士<br>高雄醫學大學<br>藥學研究所<br>89<br>In this thesis, we describes the anionic cycloaromatization of 1-aryl-3-decen-1,5-diynes initiated by methoxide addition. We found that reaction of 2-(3-undecen-1,5-diynyl)benzonitrile with sodium methoxide in the presence of polar aprotic solvent, such as DMSO, HMPA, THF or crown ether gave phenanthridinones in good chemical yields. On the other hand, under the same reaction conditions, methanolysis of 1-aryl-3-decen-1,5-diynes in the presence of tetra-butylammonium iodide in refluxing methanol gave biaryl products, yields ranging from 14﹪to 52﹪.The results sug
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42

Kerner, Florian Tobias. "Reactions of rhodium(I) with diynes and studies of the photophysical behavior of the luminescent products." Doctoral thesis, 2021. https://doi.org/10.25972/OPUS-20910.

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Chapter 1 deals with the reaction of [Rh(acac)(PMe3)2] with para-substituted 1,4-diphenylbuta-1,3-diynes at room temperature, in which a complex containing a bidentate organic fulvene moiety, composed of two diynes, σ-bound to the rhodium center is formed in an all-carbon [3+2] type cyclization reaction. In addition, a complex containing an organic indene moiety, composed of three diynes, attached to the rhodium center in a bis-σ-manner is formed in a [3+2+3] cyclization process. Reactions at 100 °C reveal that the third diyne inserts between the rhodium center and the bis-σ-bound organic fulv
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43

Tokan, Wajdi Mohammad Izzat [Verfasser]. "Palladium-catalyzed oligocyclizations of some 2-bromotetradec-1-ene-7,13-diynes under Heck reaction conditions / vorgelegt von Wajdi Mohammad Izzat Tokan." 2003. http://d-nb.info/969972644/34.

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44

Alvarez-Galan, Leonardo. "Synthèse de N-hydroxyphtalimides hautement fonctionnalisés via la cycloaddition [2+2+2] de a,w-diynes catalysée par des complexes d'iridium et de rhodium. Evaluation de leur activité en tant que catalyseurs d'oxydation aérobie." Phd thesis, 2009. http://tel.archives-ouvertes.fr/tel-00426642.

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Une nouvelle stratégie de synthèse pour la préparation de N-hydroxyphtalimides par le biais de la cycloaddition [2+2+2] entre le maléimide et des α,ω-diynes catalysée par le système [IrCl(COD)]2/DPPE ou [RhCl(COD)]2/DPPE a été développée. Cette nouvelle méthodologie de synthèse nous a permis de préparer 17 N-hydroxyphtalimides originaux en seulement quatre étapes et avec des rendements compris entre 47 et 85%. Nous avons aussi utilisé cette approche dans la préparation de 5 nouveaux N-hydroxyphtalimides possédant deux axes d'atropoisomèrie et 2 phtalimides originaux énantio- et atropoisomèriqu
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45

Swain, Bandita. "Total Synthesis Of Bio-active Oxylipins And Diyne Containing Natural Products." Thesis, 2011. http://etd.iisc.ernet.in/handle/2005/2347.

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Total synthesis of natural products is of contemporary interest in organic synthesis. One of the useful ways to synthesize the natural products is to originate from inexpensive chiral pool compounds abundantly available in nature. In this context, our research group is actively involved in the use of tartaric acid as the four carbon four hydroxy building block in the synthesis of a number of natural products of therapeutic importance. Our strategy relies on the utility of γ-hydroxy amides derived from tartaric acid involving a controlled addition of Grignard reagents and stereoselective reduct
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46

Huang, Te-Kun, and 黃德坤. "Synthesis and Characterization of Metal Cluster Complexes Derived From Diyne Compounds." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/42724621589802163595.

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Wu, Yuh —. Shiun, and 吳昱勳. "Synthesis of 1,6-diphenyl-3E-hexen-1,5-diyne Based Liquid Crystals." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/60421720078660174274.

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碩士<br>國立交通大學<br>應用化學系<br>88<br>The goal of this study is aimed to synthesize three series of highly conjugated 1,6-diphenyl-3E-hexen-1,5-diyne based liquid crystals (LC). The first series of liquid crystals containing an alkyl and a alkynyl groups on both ends are named as 1-(4-alkylphenyl)-6-(4-alkynylphenyl) -3E-hexen-1,5-diynes. The alkyl groups contain 2 to 6 methylane units while the alkynyl groups are hexynyl，heptynyl groups. The synthesized liquid crystals exhibit melting point ranging from 53 to 92℃, and clearing temperatures ranging from 105 to 121℃. Their nematic temperatu
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Scoleri, Nancy. "New methods for the synthesis of diynyl, diyndiyl and bis(diyndiyl) ruthenium (II) complexes." 2008. http://hdl.handle.net/2440/49426.

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Chapter One outlines the different methods described in the literature for the synthesis of diynyl, symmetric and asymmetric diyndiyl complexes. The extension to complexes containing a central bridging group within the carbon chain is also introduced with the description of two different linking groups, either an organic or organometallic moiety. A brief overview of molecular electronics and one method of evaluation of electronic communication, cyclic voltammetry, are also addressed. Chapter Two describes the synthesis of novel symmetric and asymmetric bis(diyndiyl) ruthenium(II) complexes of
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Chung, Chia-Pei, and 鍾佳蓓. "Reactions of Ruthenium Cp Phosphine Complex with 4,4-Disubstituted-1,6-Enynes and Diyne." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/65265454005742054247.

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博士<br>臺灣大學<br>化學研究所<br>98<br>We studied chemical reactions of Cp(PPh3)2RuCl with nine 1,6-enyne compounds (1-4, 8, 12, 19, 21, and 22) in which the triple bond is associated with propargylic alcohol and the olefinic group has various substituted methyl groups. For the enyne compounds 1-3 with no substituted methyl group, the reaction takes place at the propargylic alcohol first giving the allenylidene complex 6 which could undergo a skeletal rearrangement to yield the disubstituted vinylidene complex 7. By changing the propargylic alcohol to propargylic ether, the reaction gives the carbene co
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Nagaraju, CH. "Construction of Complex Polycyclic Systems using Gold Catalyzed Intramolecular Diyne/Enyne/ Hydroalkoxylation Reactions." Thesis, 2015. http://etd.iisc.ernet.in/2005/3840.

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First section of chapter 1 deals with gold catalyzed synthesis of ring fused furo[3,2,b]pyrans and furo[3,2,b]furans. Furo[3,2,b]pyrans and furo[3,2,b]furans are ubiquitous structural segments found in a number of natural products including polyether containing marine toxins. Synthesis of furo[3,2,b]pyrans 2a was accomplished from the bis-propargyl ethers 1a, while the synthesis of furo[3,2,b]furans 2b was accomplished from the prenyl propargyl ethers 1b. Scheme 1: Synthesis of furo[3,2,b]pyrans and furo[3,2,b]furans Second section of chapter 1 describes an unusual ring-contraction rearran
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