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Teses / dissertações sobre o tema "Carbonyl compounds"

Autor: Grafiati

Publicado: 4 de junho de 2021

Última modificação: 25 de julho de 2025

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1

Rückriemen, Jana. "Carbonyl Compounds in Manuka Honey:." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-233408.

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New Zealand is the world’s third-largest honey exporter by value behind China and Argentina and honey accounts for up to 80 % of New Zealand’s exports. However, it is only the 16th biggest global supplier by volume. Manuka honey from New Zealand is sold for premium prices and merchandised for its health benefits. Because of its exceptional antibacterial effect, there is a strong market demand and the price for a kilogram of manuka honey has tripled in recent years (Ministry for Primary Industries 2015). When consumers are willing to pay prices up to 200 €/kg manuka honey, the risk of misleadin

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2

Killeen, Niall M. "Alpha-functionalisation of carbonyl compounds." Thesis, Cardiff University, 2007. http://orca.cf.ac.uk/56184/.

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Chapter 1: Intrinsic to the methodology developed within this thesis is the exploitation of a polyheteroatom 3,3-sigmatropic rearrangement. This chapter explores the chemistry of a selection of these rearrangements in order to highlight their utility in the creation of new carbon-carbon and carbon-heteroatom bonds. Chapter 2: In this chapter the most recent advances in the alpha-functionalisation of carbonyl compounds are discussed. This review focuses mainly on organocatalyzed methodologies as these represent the forefront of current research in the field. Chapter 3: In chapter 3 the principl

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3

蔡雅然 and Ya-yin Choi. "The chemistry of tetraosmium carbonyl clusters." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B31236765.

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4

Choi, Ya-yin. "The chemistry of tetraosmium carbonyl clusters /." Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B19738079.

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5

Willasey-Wilsey, Sarah Louise. "The photochemistry of unsaturated carbonyl compounds." Thesis, King's College London (University of London), 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.309739.

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6

Taylor, Paul H. "Metal free-oxygenation of carbonyl compounds." Thesis, Cardiff University, 2010. http://orca.cf.ac.uk/54244/.

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The findings to date have contributed to the development of a novel and useful class of synthetic protocol and have resulted in a greatly enhanced understanding of the fundamental workings of the &agr;-oxygenation.

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7

Knowles, Deborah A. "Asymmetric alpha-oxygenation of carbonyl compounds." Thesis, Cardiff University, 2009. http://orca.cf.ac.uk/54828/.

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The a-hydroxy carbonyl group represents a significant building block in organic synthesis, which is reflected by the extensive synthetic efforts directed towards introduction of this group in a chemo- regio-, stereo-, and enantioselective manner. Traditional methods for the a-oxygenation of carbonyl compounds involve the formation and reaction of air-sensitive intermediates. This thesis describes an alternative metal-free approach to the formation of C-O bonds a- to a carbonyl group, in an asymmetric manner. Chapter l provides an overview of the literature methods for the a-oxygenation of carb

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8

Wong, Wai-yeung. "The chemistry of triosmium alkylidyne carbonyl clusters /." Hong Kong : University of Hong Kong, 1995. http://sunzi.lib.hku.hk/hkuto/record.jsp?B18061606.

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9

Reaman, Bradley Earl. "Catalytic, enantioselective oxyallylation of activated carbonyl compounds." Thesis, Montana State University, 2012. http://etd.lib.montana.edu/etd/2012/reaman/ReamanB0512.pdf.

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Stereoselective alkylations are a very useful tool in synthetic chemistry and, specifically, natural product synthesis. One such reaction, named the Tsuji-Trost allylation, is a palladium-catalyzed substitution with the overall transformation being the replacement of an allylic leaving group with a nucleophile. First observed in 1965 with the allylation of diethyl malonate [1], and in 1973 made asymmetric with the use of chiral phosphine ligands by B. M. Trost [2], the reaction has been studied and utilized extensively over the years. While there have been many examples of this reaction in the

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10

Epstein, Simon. "Asymmetric synthesis of #alpha#-amino carbonyl compounds." Thesis, University of Oxford, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.393570.

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11

Bojczuk, M. "Carbonyl exhange mechanisms in transition metal compounds." Thesis, University of Kent, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.372765.

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12

Westlake, Paul Jeffrey. "Radical ring expansions of benzocyclic carbonyl compounds." Thesis, Loughborough University, 1992. https://dspace.lboro.ac.uk/2134/10509.

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The thesis gives an account of the application of two methodologies, "Side Chain Incorporation" and "Cleavage of the Zero Bridge in Bicycles," to the ring expansion, by one, three, and four carbons, of five-, six-, and seven-membered ring benzocyclic carbonyl compounds.

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13

黃維揚 and Wai-yeung Wong. "The chemistry of triosmium alkylidyne carbonyl clusters." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1995. http://hub.hku.hk/bib/B31234537.

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14

江鳳思 and Fung-sze Kong. "The chemistry of Osmium carbonyl clusters containing organomercurials and azo-compounds." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B31238695.

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15

Kong, Fung-sze. "The chemistry of Osmium carbonyl clusters containing organomercurials and azo-compounds /." Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B21021545.

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16

Jessop, Philip Gregory. "The syntheses and reactions of carbonyl(phosphine)(thiolator)ruthenium(II) complexes." Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/30928.

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The chemistry of homogeneous transition metal systems offer parallels to the reactions on the surfaces of industrial hydrodesulphurization catalysts. The reactions of several ruthenium complexes with sulphur-containing reagents are described, with an emphasis on the kinetics and mechanisms thereof. The complex Ru(CO)₂(PPh₃)₃ (2), for example, reacts quickly with thiols and disulphides, producing cct-RuH(SR)(CO)₂(PPh₃)₂ (9) and cct-Ru(SR)₂(CO)₂(PPh₃)₂ (14), respectively, although 2 fails to react with unstrained thioethers. Reactions of the related complex Ru(CO)₂(PPh₃)(dpm) (dpm=Ph₂PCH₂PPh₂) a

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17

區逸貫 and Yat-kun Au. "Chemical reactivities of triosmium carbonyl clusters with nitrogen heterocycles and organomercurials." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B31234604.

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18

Au, Yat-kun. "Chemical reactivities of triosmium carbonyl clusters with nitrogen heterocycles and organomercurials /." Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B17490340.

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19

Namutebi, Mariam. "Asymmetric Sulfur Ylide Mediated Epoxidation of Carbonyl Compounds." Thesis, University of Bristol, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.520213.

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20

M'Hamedi, Ahmed. "Synthesis and photochemistry of #alpha#-substituted carbonyl compounds." Thesis, University of Salford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305900.

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21

Barrell, Juliet Kay. "The asymmetric synthesis of #alpha#-heterosubstituted carbonyl compounds." Thesis, University of Sheffield, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312778.

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22

Guena, Thierry. "Electrochemistry of aryl carbonyl compounds in flow cells." Thesis, University of Southampton, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243180.

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23

Scott, Louise Gail. "A study of some hexaosmium carbonyl cluster compounds." Thesis, University of Cambridge, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.254434.

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24

Lorusso, Patrizia. "Metal catalysed alkylation of carbonyl compounds with formaldehyde." Thesis, University of St Andrews, 2015. http://hdl.handle.net/10023/7823.

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Formaldehyde is a chemical used widely in the manufacture of building materials. A remarkable example is represented by the Lucite two-step Alpha technology for the large scale production of methyl methacrylate (MMA), the essential building block of all acrylic-based products. Esters and ketones are important intermediates in the manufacture of acrylate esters therefore α-hydroxymethylenation of carbonyl compounds using formaldehyde as a one carbon alkylating agent and subsequent dehydration to the corresponding methylenated derivatives has been explored in the current work. We report a novel

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25

Buntem, Radchada. "Synthetic studies in carbonyl cluster compounds of osmium." Thesis, University of Cambridge, 1995. https://www.repository.cam.ac.uk/handle/1810/271933.

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26

Lam, Ka Man. "Determination of airborne carbonyl compounds by a thermal desorption GC/MS method : development and application of a vapour coating technique /." View abstract or full-text, 2005. http://library.ust.hk/cgi/db/thesis.pl?CHEM%202005%20LAM.

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27

陳雁菁 and Suzanna Chan. "The chemistry of osmium-palladium carbonyl clusters." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1995. http://hub.hku.hk/bib/B31234628.

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28

Chan, Suzanna. "The chemistry of osmium-palladium carbonyl clusters /." Hong Kong : University of Hong Kong, 1995. http://sunzi.lib.hku.hk/hkuto/record.jsp?B18061576.

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29

McKerlie, Fiona. "Reduction of Î±-aryloxy carbonyl compounds with samarium (II) iodide : a novel traceless linker for the solid phase synthesis of carbonyl compounds." Thesis, University of Glasgow, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.269503.

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30

Lau, Sze-wai Cindy. "The chemistry of polynuclear ruthenium carbonyl clusters containing functionalised alkyne ligands /." Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B21021442.

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31

Biesenthal, Thomas Anthony. "The role of carbonyl compounds in tropospheric ozone chemistry." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq22886.pdf.

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32

Kindon, N. D. "The synthesis of optically active #beta#-silyl carbonyl compounds." Thesis, University of Cambridge, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234972.

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33

Llewellyn, Simon. "Acyl carbonyl transition metal compounds : their homologation and hydrogenation." Thesis, University of Oxford, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.433556.

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34

Price, Benjamin Suresh John. "The atmospheric consequences of the photolysis of carbonyl compounds." Thesis, University of Leeds, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.522964.

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35

Richardson, Jeffery. "Asymmetric epoxidation of carbonyl compounds mediated by sulfonium ylides." Thesis, University of Bristol, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.400236.

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36

Mushonga, Paul. "Ligand-bridged dinuclear carbonyl compounds of rutheniun and osmium." Master's thesis, University of Cape Town, 2008. http://hdl.handle.net/11427/6348.

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Includes abstract.<br>Includes bibliographical references (leaves 26-29).<br>Ligand-bridged dinuc1ear carbonyl compounds of ruthenium and osmium have been successfully prepared and characterised by various analytical and spectroscopic techniques. X-ray crystal structures have been determined for the osmium complexes [OS2(CO)4(p-02CCsH4FeCsHs)2L2] {L = PPh3 (102), py (103)}. Some of the complexes were then investigated for their catalytic activity in the oxidation of cyc10hexane and octane. In this work, hydrogen peroxide was used as an oxidant and acetonitrile as the solvent. A higher selectiv

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37

Lineros, Rosa Mauricio. "Photoremovable protecting groups for carbonyl compounds of biological interest." Doctoral thesis, Universitat Politècnica de València, 2021. http://hdl.handle.net/10251/167764.

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[ES] El espectro de la luz solar está compuesto por una amplia gama de radiaciones electromagnéticas las cuales tienen diferentes impactos sobre la vida en la tierra. Entre ellas, las pertenecientes a la región ultravioleta toman un papel principal cuando nos referimos a la fotobiología, ya que pueden interactuar con las biomoléculas por medio de procesos tanto directos como fotosensibilizados. Como resultado, estas biomoléculas pueden sufrir modificaciones que no siempre tienen efectos beneficiosos. En este contexto, los daños fotoinducidos al ADN son de gran relevancia ya que están estrecham

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38

梁士賢 and Sze-yin Leung. "The chemistry of hexa- and hepta- osmium carbonyl clusters." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B31238877.

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39

Leung, Sze-yin. "The chemistry of hexa- and hepta- osmium carbonyl clusters /." Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B20978765.

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40

劉思慧 and Sze-wai Cindy Lau. "The chemistry of polynuclear ruthenium carbonyl clusters containing functionalised alkyne ligands." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B31238786.

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41

Wang, I.-Hsiung 1950. "Kinetics Studies of Substituted Tungsten Carbonyl Complexes." Thesis, University of North Texas, 1989. https://digital.library.unt.edu/ark:/67531/metadc330797/.

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Thermal reactions and flash photolysis are used to study the olefin bond-migration promoted by tungsten carbonyls. Substitution of piperidine (pip) by 2- allylphenyldiphenylphosphine (adpp) in the cis-(pip)(η^1- adpp)W(CO)-4 complex was investigated, and no olefin bond-migration was observed. This suggests that a vacant coordinated site adjacent to the coordinated olefin is an essential requirement for olefin bond rearrangement. The rates of olefin attack on the photogenerated coordinatively unsaturated species, cis-[(CB)(η^1-ol- P)W(CO)-4] (CB = chlorobenzene, p-ol = Ph-2P(CH-2)-3CH=CH-2; n

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42

王淑儀 and Shuk-yee Janet Wong. "The chemistry of osmium carbonyl clusters containing oxime and oxo ligands." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2003. http://hub.hku.hk/bib/B31244932.

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43

洪若華 and Yeuk-wah Hung. "The chemistry of Osmium-Rhodium mixed-metal carbonyl clusters." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B3121535X.

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44

Hung, Yeuk-wah. "The chemistry of Osmium-Rhodium mixed-metal carbonyl clusters /." Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B19904988.

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45

Loog, Olavi. "Aspects of condensations of carbonyl compounds and their imine analogues /." Online version, 2005. http://dspace.utlib.ee/dspace/bitstream/10062/883/5/loog.pdf.

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46

Altinel, Ertan. "Manganese(iii) Acetate Mediated Regeneration Of Carbonyl Compounds From Oximes." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607333/index.pdf.

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A facile method for the direct conversion of oximes into carbonyl compounds by treatment with manganese triacetate is described. Manganese triacetate can be used for an effective and mild oxidizing agent for the regeneration of carbonyl compounds in good yield. Many functional groups are tolerated under reaction conditions.

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47

Zheng, Guo Zhu. "Regio- and stereoselective hydrosilation of a,b-unsaturated carbonyl compounds." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=40303.

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Hydrosilation of $ alpha, beta$-unsaturated carbonyl compounds catalyzed by hydridotetrakis(triphenylphosphine)rhodium(I) (2.20) was found to be highly regioselective, depending on the type of silicon hydrides used. Diphenylsilane was found to give 1,2-hydrosilation (100%), whereas dimethylphenylsilane and other monohydrosilanes gave 1,4-addition (100%).<br>The kinetic isotope effect of the hydrosilation reaction was examined. A kinetic isotope effect of $k sb{H}/k sb{D}=2$ was observed in the hydrosilation of acetophenone (2.78) by dihydrosilane, $ rm H sb2SiPh sb2$ (2.21) and $ rm D sb2SiPh

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48

Ainger, Nicholas John. "The theoretical prediction of proton chemical shifts in carbonyl compounds." Thesis, University of Liverpool, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366513.

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49

Kim, Jong Chul. "Nucleophilic Addition Reactions to Carbonyl Compounds under High Pressure Environment." Kyoto University, 2003. http://hdl.handle.net/2433/148945.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(人間・環境学)<br>甲第10308号<br>人博第195号<br>14||159(吉田南総合図書館)<br>新制||人||48(附属図書館)<br>UT51-2003-H729<br>京都大学大学院人間・環境学研究科人間・環境学専攻<br>(主査)教授松本澄, 教授山内淳, 教授山口良平<br>学位規則第4条第1項該当

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50

Iwai, Tomohiro. "Highly Efficient Transformations of Carbonyl Compounds Catalyzed by Iridium Complexes." 京都大学 (Kyoto University), 2011. http://hdl.handle.net/2433/142179.

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