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Dissertations / Theses on the topic 'Nucleophilic reactions'

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Published: 4 June 2021

Last updated: 25 July 2025

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1

Duff, Jack Lawrence. "Single electron transfer in nucleophilic reactions of substituted norbornanes." Thesis, Georgia Institute of Technology, 1989. http://hdl.handle.net/1853/27444.

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2

Martin, Peter Arnold. "Nucleophilic substitution reactions of some polyhalogenated compounds." Thesis, Durham University, 1987. http://etheses.dur.ac.uk/6876/.

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Rate measurements for the reactions of a series of polyfluoro - and polychloro - pyridines with aniline and ammonia in 60/40 dioxan/water at 25ºC has shown that chlorine, when ortho and para to the position of attack, is activating with respect to fluorine, but at the position meta to the point of attack, chlorine and fluorine are virtually equivalent in their effect on reaction rate. The trifluoromethyl and nitrile groups were found to be activating relative to fluorine when ortho and para to the position of substitution and the nitrile group was thus found to be ortho/para directing. The ort

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3

Beaumont, Andrew J. "A study of some selective nucleophilic fluorination reactions." Thesis, University of York, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.306248.

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4

Jones, Craig Warren. "Nucleophilic aromatic substitution using supported copper(I) reagents." Thesis, University of York, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236184.

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5

Iagrossi, Anna. "Stereochemical studies of reactions of phosphate and thiophosphate esters." Thesis, University of Leicester, 1988. http://hdl.handle.net/2381/33748.

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Nucleophilic substitution reactions involving phosphate monoesters have been investigated. Two general syntheses of O-alkyl or O-aryl [16O,18O] thiophosphate monoesters are reported. An independent and general method for the determination of the enantiomeric excess of isotopically chiral thiophosphate monoesters has been developed and the absolute configurations of the diastereoisomers of (2R)-O-(O-ethyl thiophosphoryl)-3, 4S-dimethyl-5S-phenyl-l,3,2-oxazaphos- pholidin-2-one have been assigned. The solvolysis of p-nitrophenyl [R-16O,18O] thiophosphate in ethanol gives rise to ethyl [16O, 18O]

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6

Drew, S. M. "Photochemical nucleophilic substitution reactions of quinones and related systems." Thesis, University of Leeds, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374182.

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7

Van, der Westhuizen Carl Johan. "Nucleophilic substitution reactions of α-haloketones : a computational study". Diss., University of Pretoria, 2017. http://hdl.handle.net/2263/63346.

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This dissertation describes the computational modelling of reactions between α-haloketones and various nucleophiles. Nucleophilic substitution reactions of α-haloketones (also known as α- halocarbonyls in literature) are utilised in synthetic laboratories to obtain 1,2-disconnections; which are typically difficult to obtain otherwise. To gain insight into these reactions, DFT modelling was carried out in this project, with further understanding into these reactions being obtained using Quantum Fragment Along Reaction Pathway (QFARP) which is an extension of Interacting Quantum Atoms (IQA

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8

Baxter, Nicholas James. "The mechanisms of reactions of #beta#-sultams." Thesis, University of Huddersfield, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285584.

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9

Liu, Jiangqiong. "Kinetic Studies of 6-Halopurine Nucleoside in SNAr Reactions; 6-(Azolyl, Alkylthio and Fluoro)-purine Nucleosides as Substrates for Suzuki Reactions." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd1821.pdf.

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10

Annandale, Michael Thomas. "NMR spectroscopic studies of nucleophilic attack on dinitroaniline herbicides, reactions of selected nucleophiles with trifluralin and benefin." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq22268.pdf.

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11

Balan, Gayatri. "Studies on the nucleophilic substitution reactions of a dimeric cyclopentadienone." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/6265.

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Thesis (M.S.)--University of Missouri-Columbia, 2007.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on January 11, 2008) Includes bibliographical references.

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12

James, Rachel Anne. "Nucleophilic substitution reactions of (alkoxymethylene) dimethylammonium chloride and cyclopropane methodology." Thesis, Imperial College London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342180.

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13

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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14

Giles, Robert G. "Some reactions of acyl cation equivalents with nucleophilic aromatic systems." Thesis, Loughborough University, 1986. https://dspace.lboro.ac.uk/2134/11087.

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Trimethyloxonium fluoroborate rapidly reacts with nitriles at elevated temperatures, to afford N-methylnitrilium salts. Subsequent reaction with π-excessive heterocyclic aromatic systems has been shown to give rise to iminium salts in moderate to excellent yields. The related imines may be obtained by deprotonation, and these compounds can be converted further by reduction or hydrolysis to secondary amines or ketones respectively. The reactions studied provide access to acylated indoles and pyrroles which are obtainable by other methods in inferior yields. The related reactions with carbocycli

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15

Nomura, Kenichi. "Studies on a Nucleophilic Cyclopropanation Reactions with Bis(iodozincio)methane." 京都大学 (Kyoto University), 2010. http://hdl.handle.net/2433/120873.

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16

Diep, Nhut Kiet. "Studies of nucleophile ring opening of oxabicyclic systems in highly polar media application to a total synthesis of antitumor agent, (-)-epothilone B /." Diss., Montana State University, 2006. http://etd.lib.montana.edu/etd/2006/diep/DiepN0806.pdf.

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Polyketides constitute an important family of natural products, having a broad spectrum of biological activity such as antitumor, antibiotic, antifungal, or immunomodulatory action.Â¹ Many of these compounds possess polypropionates (units with alternating hydroxyl and methyl groups), reflecting their common biosynthesis that is found within nature. Their structural complexity and importance of these compounds as therapeutical agents have made them attractive targets for synthetic organic chemists.Â¹ Excellent chiral propionate reagents have been developed over the years,

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17

Popp, Ann E. "Investigation of the lifetimes of electrochemically generated anthracene cation radicals in the presence of selected nucleophiles." Thesis, Georgia Institute of Technology, 1988. http://hdl.handle.net/1853/27173.

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18

Williams, Kenneth Bruce. "The effect of methyl groups on nucleophilic substitution reactions of chlorocyclotriphosphazenes." Diss., Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/49962.

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The reactions of methyl-substituted chlorocyclotriphosphazenes with aryl Grignard reagents and with bifunctional amines, aminoalcohols, and alkoxides were investigated. The characterization data for the compounds formed in the reactions of monomethylpentachlorocyclotriphosphazene and the Grignard reagents were found to be informative with respect to the extent and nature of the interaction between the phosphazene ring and its exocyclic substituents. This interaction was found to be responsible for significant effects on the reactions of the phosphazene ring with nucleophiles. The reactions o

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19

Smellie, Iain Archie Sneddon. "Reactions of pyranosyl nitrile oxides : 1,3-nucleophilic addition reactions in the synthesis of novel C-glycosides." Thesis, University of Edinburgh, 2005. http://hdl.handle.net/1842/14433.

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1,3-Nucleophilic addition reactions of thiols and amines with pyranosylnitrile oxides have been employed in the synthesis of <i>C</i>-glycosides. The nitrile oxides were generated by base-induced dehydrochlorination of the corresponding hydroximoyl chlorides 106 and 107. D-Glucose derived hydroximoyl chloride 107 was prepared in four steps from D-glucose and employed in collaborative work toward the synthesis of glucosinolate analogue. Reaction of alkyl and aryl thiols with D-xylose nitrile oxide 151 afforded a series of desulfoisoglucosinolates in 55-76% yields. Reactions of allyl and aryl am

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20

Dehestani, Ahmad. "Exploring reactivities of oxo and nitrido ligands on high valent osmium with electrophiles, nucleophiles, alkenes, hydrogen, and methane. /." Thesis, Connect to this title online; UW restricted, 2004. http://hdl.handle.net/1773/8626.

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21

Bhavaraju, Sitaram. "Study of nucleaphilicity of an enol tosylate fragment of [alpha]- formylglycine ([alpha]-FGly-Ots) /." View online ; access limited to URI, 2007. http://0-digitalcommons.uri.edu.helin.uri.edu/dissertations/AAI3292101.

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22

Iacono, Scott Thomas. "Semifluorinated polymers via cycloaddition and nucleophilic addition reactions of aromatic trifluorovinyl ethers." Connect to this title online, 2008. http://etd.lib.clemson.edu/documents/1211387368/.

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23

Drury, Christopher John. "Nucleophilic substitution and cyclisation reactions of some polyfluoro-heteroaromatic and polyfluoroaromatic compounds." Thesis, Durham University, 1994. http://etheses.dur.ac.uk/5845/.

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This thesis describes the reactions of some highly fluorinated aromatic and heteroaromatic compounds, in particular derivatives of naphthalene, quinoline and isoquinoline. Chapter 1 provides a general introduction to the preparation, reactions and applications of fluorine containing organic materials. Chapter 2 describes the reactions of some quinoline- and isoquinoline- thiolates with dimethyl acetylenedicarboxylate in an attempt to form six membered heterocycles. Chapter 3 describes nucleophilic substitution reactions of heptafluoro- quinoline and -isoquinoline with sulphur and oxygen nucleo

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24

Donham, Leah L. "Gas-Phase Studies of Nucleophilic Substitution Reactions: Halogenating and Dehalogenating Aromatic Heterocycles." VCU Scholars Compass, 2018. https://scholarscompass.vcu.edu/etd/5645.

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Halogenated heterocycles are common in pharmaceutical and natural products and there is a need to develop a better understanding of processes used to synthesize them. Although the halogenation of simple aromatic molecules is well understood, the mechanisms behind the halogenation of aromatic heterocycles have been more problematic to elucidate because multiple pathways are possible. Recently, new, radical-based mechanisms have been proposed for heterocycle halogenation. In this study, we examine and test the viability of possible nucleophilic substitution, SN2@X, mechanisms in the halogenat

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25

Fu, Yingmin. "Structure-reactivity relationships in ring-slippage reactions." Virtual Press, 2003. http://liblink.bsu.edu/uhtbin/catkey/1265096.

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26

Zell, Daniela [Verfasser]. "Chasing selectivity : Peptides as nucleophilic catalysts in enantioselective electrophile transfer reactions / Daniela Zell." Gießen : Universitätsbibliothek, 2013. http://d-nb.info/1065393660/34.

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27

Cheong, Yuen-Ki. "Studies of the reactions of nucleophilic organophosphorus species with organic cabonyl-coataining compounds." Thesis, Queen Mary, University of London, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.582586.

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The majority of this project is to discover novel mechanistic pathways for a wide range of organic reactions involving different carbonyl compounds with trivalent phosphorus compounds. The first part of our research involved the one-pot intra-molecular cyclisation reaction of the different 2-substituted benzoylphosphonates in the presence of triniethyl phosphite. The mechanistic pathway of these reactions was found to intra-molecular insert to the electrophilic carbonyl centre in the substituent via the initially formed carbanionic intermediate. The subsequently formed tricyclic phospholane in

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28

Pulipaka, Aravinda B. "Intramolecular ring opening reactions of aziridines by [pi]-nucleophiles /." View abstract, 2008. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:3306530.

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29

Mariani, Francesco. "New Palladium-Catalysed Intramolecular Coupling Reactions: Nucleophilic Addition toAldehydes and C-H Carbene Insertion." Doctoral thesis, Universitat de Barcelona, 2016. http://hdl.handle.net/10803/398849.

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Although sygma-aryl and sygma-vinylpalladium(II) complexes are commonly used as electrophiles in C—C bond forming reactions, recent research has demonstrated that the same palladium intermediates can also react with carbon-heteroatom multiple bonds in a nucleophilic manner. Continuing with the interest of our group on the palladium-catalysed intramolecular coupling of aryl halides whit carbonyl compounds, we have expanded our previous findings to substrates containing other carbon-heteroatom multiple bonds. In this context, the first objective of the PhD Thesis has been the study of the dua

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30

Derasp, Joshua. "Development of Cascade Reactions and Strategies for Carbon Centred Nucleophilic Additions to Blocked Isocyanates." Thesis, Université d'Ottawa / University of Ottawa, 2019. http://hdl.handle.net/10393/39326.

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Isocyanates are invaluable bulk chemicals that play a central role in the synthesis of various polymers and provide a key platform for the synthesis of nitrogen-containing molecules such as carbamates and ureas. Unfortunately, isocyanates suffer from high toxicity, low functional group tolerance, and a propensity to undergo deleterious side-reactions. Consequently, blocked (masked) isocyanate derivatives have been the subject of increased interest resulting from their reduced toxicity and exceptional control over isocyanate reactivity. This strategy has largely been relegated to the polymeriza

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31

Millan, Michael John. "The attachment of dyes to amino acids /." Title page, contents and abstract only, 1996. http://web4.library.adelaide.edu.au/theses/09PH/09phm6448.pdf.

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32

Lu, Yafan. "(4+3) cycloadditions and tandem (4+3) cycloaddition/nucleophilic trapping reactions of propargylic diether dicobalt complexes via sequential Nicholas reactions." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ62246.pdf.

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33

Lee, Elaine C. "Improved synthesis and application of planar-chiral nucleophilic catalysts in asymmetric reactions and copper-catalyzed enantioselective N-H insertion reactions." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/39741.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 2007.<br>Vita.<br>Includes bibliographical references.<br>The development of an improved synthesis of nucleophilic planar-chiral catalysts is described in Chapter 1. This route is amenable to scale-up and preparative chiral HPLC is unnecessary to resolve the racemic catalysts. Using planar-chiral catalysts, two synthetic methodology projects have been developed: Chapter 2 describes the first asymmetric synthesis of trans P-lactams, and Chapter 3 describes the asymmetric synthesis of tertiary a-chloroesters. In the chap

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34

Dandekar, Sushama A. "Studies of intramolecular S_RN1 reactions of carbanions derived from 2-(o-halobenzyl)amides and 3-(o-halobenzyl)imides: application to the synthesis of succinimido[3,4-b]indane, a potential anticonvulsant." Diss., Virginia Tech, 1992. http://hdl.handle.net/10919/40096.

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35

Soper, Jake D. "Reactions at nitrogenous ligands on oxidizing group 8 metal centers /." Thesis, Connect to this title online; UW restricted, 2003. http://hdl.handle.net/1773/8589.

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36

Li, Ho Yin. "Rhodium and iridium-catalysed nucleophilic addition/substitution reactions for the synthesis of lead-like scaffolds." Thesis, University of Leeds, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.634530.

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The research project presented in this thesis aimed to synthesise lead-like scaffolds under array conditions utilizing a novel metal catalysed reaction sequence. The reaction sequence was designed to synthesize libraries of compounds with structural diversity and maximum functional group compatibility in order to aid organic synthesis in modern medicinal industry. The first part of this thesis involved the study of rhodium-catalysed conjugate addition of boronic acids/esters to various Michael acceptors. This methodology has been investigated in order to expand the nucleophile scope to ortho-s

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37

Lock, S. J. "Water-tolerant organometallic reactions : nucleophilic additions to carbonyl compounds using allyl metals in aqueous solution." Thesis, Swansea University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.637942.

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Against a background of the reactivity of traditional organometallics, this work describes nucleophilic addition reactions that take place <i>via</i> the intervention of metals in the presence of water. The experimental work focuses on allylation of aldehydes in water-containing solvents using nickel, bismuth and aluminium. Chapter 1 outlines the current influence of environmental issues on the practice of chemistry and the value of water as a solvent. Carbon-carbon bond formation is discussed in the context of mechanism and common methods are reviewed, particularly with respect to reaction of

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38

Poole, Darren L. "Studies towards the nucleophilic dearomatisation of electron-deficient heteroaromatics and hydrogen borrowing reactions of methanol." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:d9b862ca-1680-42eb-b93b-a1a7d44e1a75.

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<strong>Introduction – Dearomatisation of Heteroaromatic Compounds</strong> The introduction provides a survey of dearomatisation reaction of heteroaromatics, with a particular focus on pyridines/pyridinium salts and furans. The mechanism, scope, and limitations of various approaches are covered, along with the goals of this project. <strong>Results and Discussion – Dearomatisation of Electron-Deficient Heteroaromatics</strong> This chapter initially explores the asymmetric addition of organometallic nucleophiles to pyridinium salts bearing a chiral counterion. Unfortunately, this approach ult

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39

Callingham, Michael. "Reactions of nucleophilic allymetal species generated in situ through 1,4-alkenyl-to-allyl metal migrations." Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/52053/.

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Herein is described the catalytic in situ generation of nucleophilic allylmetal species through the activation of allylic C-H bonds. Reactivity is achieved through initial carbometalation of an enyne, followed by the key 1,4-alkenyl-to-allyl metal migration which generates the allylmetal intermediate. This new mode of reactivity was firstly employed in the rhodium-catalysed diastereoselective reaction of arylboron reagents with enynones, to give products containing three contiguous stereocentres. Initial discovery and optimisation of this reaction was performed by Benjamin Partridge. Through u

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40

Schory, David Henry. "Quantum Chemical Investigations of Nucleophilic Aromatic Substitution Reactions and Acid Dissociations of Aliphatic Carboxylic Acids." Wright State University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=wright1253480264.

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41

Hayes, Roger Nicholas. "A study of some gas phase nucleophilic substitution reactions of carbon, silicon and boron by ion cyclotron resonance mass spectrometry /." Title page, table of contents and summary only, 1985. http://web4.library.adelaide.edu.au/theses/09PH/09phH418.pdf.

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42

DeCoste, Jared B. "Nucleophilic chemistry of faujasite X zeolites with isocyanates, organosulfur esters, and epoxides." Diss., Online access via UMI:, 2009.

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43

Ganguly, Bishwajit. "Theoretical Studies Of pie-Facial Selectivity In Organic Reactions." Thesis, Indian Institute of Science, 1994. https://etd.iisc.ac.in/handle/2005/120.

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he thesis entitled "Theoretical Studies of pie-Facial Selectivity in Organic Reactions" involve a computational examination of a suitable reactivity problem in organic chemistry. Systematic and efficient -procedures have been developed and tested for rationalizing observed face selectivities in numerous substrates. In a number of cases precise transition state structures have also been computed in a rigorous manner. The molecules examined are by and large sterically unbiased. Considerable emphasis has been placed on obtaining general interpretations, In particular, the relative contributions

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44

Ganguly, Bishwajit. "Theoretical Studies Of pie-Facial Selectivity In Organic Reactions." Thesis, Indian Institute of Science, 1994. http://hdl.handle.net/2005/120.

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he thesis entitled "Theoretical Studies of pie-Facial Selectivity in Organic Reactions" involve a computational examination of a suitable reactivity problem in organic chemistry. Systematic and efficient -procedures have been developed and tested for rationalizing observed face selectivities in numerous substrates. In a number of cases precise transition state structures have also been computed in a rigorous manner. The molecules examined are by and large sterically unbiased. Considerable emphasis has been placed on obtaining general interpretations, In particular, the relative contributions

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45

Firdous, Samia. "Synthesis and Reactions of α-Azido Alcohols". Doctoral thesis, Universitätsbibliothek Chemnitz, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-86012.

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Die vorliegende Arbeit beschäftigt sich mit der Untersuchung von a-Azidoalkoholen, welche über die Reaktion von aliphatischen sowie aromatischen Aldehyden mit HN3 leicht zugänglich sind und die im Gleichgewicht mit den jeweiligen Ausgangsstoffen vorliegen. Bei Raumtemperatur stellt sich dieses Gleichgewicht sehr schnell ein und man erhält spezifische Konzentrationen an Eduktaldehyd, Stickstoffwasserstoffsäure und a-Azidoalkohol. Die Reaktion von Aldehyden mit HN3 generiert dabei ein neues Chriralitätszentrum, wodurch die Umsetzung chiraler Aldehyde, wie z. B. von Zuckerderivaten, zwei anomere

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46

Baag, M. "Nucleophilic reactions of cyclic anhydrides and their derivatives: facile synthesis of bioactive natural and unnatural compounds." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 2007. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/2620.

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47

Dai, Xiaoyang. "Hydride transfer reactions of trifluoromethylated allylic alcohols and ketimines & nucleophilic trifluoromethylthiolation of Morita-Baylis-Hillman Carbonates." Thesis, Rouen, INSA, 2014. http://www.theses.fr/2014ISAM0018/document.

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Nous avons développé de nouveaux accès pour la construction de molécules comportant les motifs Csp3-CF3 et Csp3-SCF3. Deux réactions de transfert d'hydrure sur des composés trifluorométhylés par catalyse avec des métaux de transition ont été réalisées : 1) l'isomérisation catalytique d'alcools allyliques trifluorométhylés par des complexes de fer (II); 2) le transfert d'hydrogéne énantiosélectif de céto-imines trifluorométhylées par des complexes chiraux de ruthénium en utilisant l'isopropanol comme source d'hydrure pour obtenir des amines trifluorométhylées optiquement actives avec de hauts r

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48

Moore, Patrick A. "Synthetic studies of aminoketenes and isocyanatoketenes and nucleophilic reactions of 2,3-bis(trimethylsilyl)-1,3-diene-1,4-dione." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq29229.pdf.

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49

Machover, Sarah B. "Understanding the Solvent-free Nucleophilic Substitution Reaction Performed in the High Speed Ball Mill (HSBM): Reactions of Secondary Alkyl Halides and Alkali Metal-Halogen Salts." University of Cincinnati / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1307043848.

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50

HADDAD-FAHED, OMAIMA. "Catalyse micellaire de reactions de substitution nucleophile aromatique comportant des reactifs electriquement charges." Paris 6, 1987. http://www.theses.fr/1987PA066419.

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