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Dissertations / Theses on the topic 'Reductive reactions'

Author: Grafiati

Published: 18 May 2024

Last updated: 31 July 2025

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1

Rodrigo, Sanjeewa K. "Nickel Catalyzed Regioselective Reductive Coupling Reactions." University of Cincinnati / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1396532622.

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2

Börjesson, Carazo Marino Rolando. "Ni-Catalyzed Reductive Carboxylation Reactions with Carbon Dioxide." Doctoral thesis, Universitat Rovira i Virgili, 2020. http://hdl.handle.net/10803/670249.

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El gas hivernacle principal emès a causa del desenvolupament industrial de la nostra societat és el diòxid de carboni. Com a conseqüència, els darrers anys han estat testimonis del desenvolupament de processos per a la fixació de CO2 en molècules orgàniques. Tot i que l’ús químic del CO2 probablement no reduirà dràsticament la seva concentració a l’atmosfera, el seu baix cost i alta disponibilitat podria ajudar a substituir alguns dels processos industrials establerts que contribueixen al canvi climàtic. En particular, el grup carboxil està present en una gran quantitat de productes farmacèuti

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3

Serrano, Robledo Eloísa Sofía. "Amide Formation via Ni-Catalyzed Reductive Coupling Reactions with Isocyanates." Doctoral thesis, Universitat Rovira i Virgili, 2018. http://hdl.handle.net/10803/586084.

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Recentment, les reaccions d’acoblament creuat entre electròfils s’han posicionat com a potents alternatives a les reaccions clàssiques d’acoblament creuat entre electròfils orgànics i nucleòfils organometàl•lics. Aquests acoblaments reductius presenten nombrosos avantatges degut a que utilitzen compostos de partida simples i fàcilment assequibles que eviten la necessitat de sintetitzar espècies organometàl•liques sensibles a la humitat i a l’oxigen. Com a conseqüència, els protocols experimentals són pràctics i les condicions de reacció són suaus. A causa de la ubiqüitat de les amides en molèc

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4

Joensuu, Pekka Matias. "Development of catalytic stereoselective reductive aldol reactions." Thesis, University of Edinburgh, 2008. http://hdl.handle.net/1842/2576.

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The chemistry of enolates can be considered one of the cornerstone areas in organic chemistry. Regioselective generation of an enolate in the presence of several enolisable sites can often prove to be a difficult task. Discoveries in recent years have led to new areas of enolate formation in the presence of other carbonyl groups. These include reductive aldol chemistry where direct reductive aldol coupling of an alpha,beta - unsaturated carbonyl group in presence of a carbonyl electrophile enables often perfectly regioselective reactions to occur. This tandem conjugate reductionelectrophilic t

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5

Gallagher, P. "The reductive decomposition of bis-diazo-alkanes." Thesis, University of Liverpool, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381343.

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6

Mc, Geehin Peter Kevin Mark. "Hydrogenation, hydrogenolysis and reductive fission reactions of cis dihydrodiols." Thesis, Queen's University Belfast, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.252284.

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7

Chakraborty, Satyajit. "Studies on oxidative and reductive reactions of carbocyclic compounds." Thesis, University of North Bengal, 1988. http://hdl.handle.net/123456789/709.

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8

Fung, Chi-ming Kelvin. "Synthesis and applications of copper hydride complexes in reductive reactions." Click to view the E-thesis via HKUTO, 2005. http://sunzi.lib.hku.hk/hkuto/record/B36388208.

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9

Fung, Chi-ming Kelvin, and 馮志明. "Synthesis and applications of copper hydride complexes in reductive reactions." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2005. http://hub.hku.hk/bib/B36388208.

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10

Mendiratta, Arjun. "Reductive coupling and related reactions with Mo and Ti tris- anilides." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/32483.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 2005.<br>Vita.<br>Includes bibliographical references.<br>Chapter 1: The capability of Mo(N[t-BulAr)₃ to act as a powerful one, two, and three electron reductant have been previously demonstrated. In this work, we show that Mo(NIt-BulAr)₃ forms a metastable adduct with the moderate [pi] acid PhCN; coordination of PhCN activates the nitrile carbon towards reaction with a variety of one-electron reagents such as dichalcogenides, nitric oxide, hydrogen atom donors, cobaltocene, and elemental phosphorus. Evidence is presen

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11

Lumby, Ralph James Richard. "Novel transition-metal-catalysed reactions using diethylzinc as the stoichiometric reductant." Thesis, University of Edinburgh, 2009. http://hdl.handle.net/1842/3890.

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Modern organic chemistry strives to achieve rapid molecular complexity from simple achiral substrates. One method by which this may be achieved is with enolate formation followed by attack on an electrophile which can generate one, two or even more new stereocentres in one step. However regioselective generation of an enolate in the presence of several enolisable sites has always proved problematical. A partial answer to this problem has been provided by the development of the reductive aldol reaction. The first part of this thesis is concerned with describing a highly diastereoselective Co(II

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12

Leung, Sze-kar, and 梁詩嘉. "Novel reactions of oxabicyclic compounds and reductive aldol cyclizations of activated alkynes." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B44570156.

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13

Mork, Anna Jolene. "Novel reactions of a neutral organic reductant : reductive coupling and nanoparticle synthesis." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/73438.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Chemistry, 2012.<br>Vita. Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 53-55).<br>A recently developed bis-pyridinylidene neutral organic electron donor captured our interest as a potential source of new chemistries for reductive coupling and the synthesis of group IV nanoparticles. This super electron donor was used as a co-reductant for nickel-catalyzed reductive coupling of aryl halides in order for the reaction to be homogeneous and avoid the traditional co-reductant, zinc, previously reporte

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14

RAMADAN, DOAA REDA MOHAMED. "PALLADIUM CATALYZED REACTIONS: REDUCTIVE CYCLIZATION OF NITROARENES, AND OXIDATIVE CARBONYLATION OF ANILINE." Doctoral thesis, Università degli Studi di Milano, 2021. http://hdl.handle.net/2434/819652.

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Palladium Catalyzed Reactions: Reductive Cyclization of Nitroarenes, and Oxidative Carbonylation of Aniline Abstract: The thesis is divided into two main chapters: reductive cyclization of nitroarenes, and oxidative carbonylation of aniline. The first chapter involves developing a catalytic system for carbazoles synthesis through reductive cyclization of 2-nitrobiphenyls employing phenyl formate as an in-situ source of CO. Thus, the synthetic chemist can avoid handling pressurized CO lines and perform the reaction in a pressure tube, a cheap and readily available tool for any laborat

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15

Ray, Tandra. "Chemical studies on natural products : isolation, characterisation and oxidative and reductive reactions." Thesis, University of North Bengal, 1991. http://hdl.handle.net/123456789/851.

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16

Fava, Eleonora [Verfasser]. "Visible light mediated photoredox catalysis: reductive carbon-carbon bond forming reactions / Eleonora Fava." München : Verlag Dr. Hut, 2015. http://d-nb.info/1079768645/34.

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17

Moslin, Ryan Thomas McLeod. "Nickel-catalyzed reductive coupling reactions of 1,6-enynes and the total synthesis of (+)-acutiphycin." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/38622.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 2007.<br>Vita.<br>Includes bibliographical references.<br>Nickel-Catalyzed Reductive Coupling Reactions of Aldehydes and Chiral 1,6-Enynes. A study of nickel-catalyzed reductive coupling reactions of aldehydes and chiral 1,6-enynes has provided evidence for stereospecific ligand substitution from a planar three-coordinate nickel species as a plausible explanation of regioselectivity in the nickel-catalyzed reductive coupling of aldehydes and 1,6-enynes. In the absence of a phosphine additive, high regioselectivity and

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18

Shi, Weiwei. "Kinetic and spectroscopic characterization of the reductive and oxidative half-reactions of trimethylamine dehydrogenase." Connect to this title online, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1085107954.

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Thesis (Ph. D.)--Ohio State University, 2004.<br>Title from first page of PDF file. Document formatted into pages; contains xvii, 215 p.; also includes graphics (some col.) Includes bibliographical references (p. 208-215). Available online via OhioLINK's ETD Center

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19

Woodin, Katrina Sue. "Nickel-catalyzed reductive coupling reactions : application to the total syntheses of pumiliotoxins 209F and 251D." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/38625.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Chemistry, 2007.<br>Vita.<br>Includes bibliographical references.<br>Catalytic Asymmetric Reductive Coupling of 1,3-Enynes and Aromatic Aldehydes Nickel-catalyzed reductive coupling reactions of 1,3-enynes and aromatic aldehydes efficiently afford conjugated dienols in excellent regioselectivity and modest enantioselectivity. These reactions were conducted in the presence of a catalytic ligand (R)-ferrocenyl(2-isopropylphenyl)phenylphosphine, whose overall synthesis was improved during the course of this investigation. 1-(Trimethyl

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20

Crumpton, Dawn M. "Mechanistic studies of carbon-carbon and carbon-hydrogen reductive elimination reactions from platinum(IV) complexes /." Thesis, Connect to this title online; UW restricted, 2000. http://hdl.handle.net/1773/8484.

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21

Lau, Chi-yin. "Reductive aldol cyclizations using Stryker's reagent and polystyrene-supported triphenylarsine in carbon-carbon bond forming reactions." Click to view the E-thesis via HKUTO, 2007. http://sunzi.lib.hku.hk/hkuto/record/B39634450.

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22

Lau, Chi-yin, and 劉志賢. "Reductive aldol cyclizations using Stryker's reagent and polystyrene-supported triphenylarsine in carbon-carbon bond forming reactions." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2007. http://hub.hku.hk/bib/B39634450.

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23

Petzold, Daniel [Verfasser], and Burkhard [Akademischer Betreuer] König. "Visible Light Mediated Oxidative Halogenation Reactions and Reductive Liberation of Fluorophosgene / Daniel Petzold ; Betreuer: Burkhard König." Regensburg : Universitätsbibliothek Regensburg, 2020. http://d-nb.info/1210701987/34.

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24

Ericsson, Cecilia. "Synthesis of Tetrahydrofuran and Pyrrolidine Derivatives Utilising Radical Reactions : Organochalcogenides in Reductive, Carbonylative and Group-Transfer Cyclisation." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4018.

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25

Ban, Zhihui. "Synthesis and investigation of nanomaterials by homogeneous nonaqueous solution phase reactions." ScholarWorks@UNO, 2005. http://louisdl.louislibraries.org/u?/NOD,274.

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Thesis (Ph. D.)--University of New Orleans, 2005.<br>Title from electronic submission form. "A dissertation ... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Chemistry"--Dissertation t.p. Vita. Includes bibliographical references.

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26

Reyes-Rodriguez, Efrain [Verfasser], and von Wangelin Axel [Akademischer Betreuer] Jacobi. "Manganese, Iron and Cobalt Catalyzed Reductive Hydrogenation and Cross-Coupling Reactions / Efrain Reyes-Rodriguez ; Betreuer: Axel Jacobi von Wangelin." Regensburg : Universitätsbibliothek Regensburg, 2020. http://d-nb.info/1203874863/34.

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27

Wang, Shengdong. "Transition metal-catalyzed reduction reactions adding value to bio-sourced compounds." Thesis, Rennes 1, 2018. http://www.theses.fr/2018REN1S134.

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Le travail de recherche concerne l'utilisation de catalyseurs à base de métaux de transition: ruthénium, iridium, cobalt, argent, pour la transformation de substrats bio-sourcés renouvelables en produits à valeur ajoutée pour l'industrie chimique et l'énergie. La transformation par transfert d'hydrogène de l'acide lévulinique en γ-valérolactone a d'abord été développée avec de nouveaux catalyseurs du ruthénium et de l'iridium porteurs d'un ligand dipyridylamine et d'un chlorure en utilisant l'acide formique comme source d'hydrogène. Puis de nouveaux catalyseurs zwitterioniques de type ruthéniu

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28

Colby, Davie Elizabeth A. (Elizabeth Anne). "Enantioselective nickel-catalyzed reductive coupling reactions of alkynes and aldehydes. Synthesis of amphidinolides T1 and T4 via catalytic, stereoselective macrocyclizations." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/32487.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 2005.<br>MIT Science Library copy: 2 v. set, in leaves.<br>Also issued in leaves, 2 v. set. Vita.<br>Includes bibliographical references.<br>I. Enantioselective Nickel-Catalyzed Reductive Couplings of Alkynes and Aldehydes Allylic alcohol synthesis via a nickel-catalyzed reductive coupling reaction of alkylsubstituted alkynes and aldehydes was studied for ligand effects with respect to the regioselectivity and enantioselectivity of the coupling process. A class of P-chiral, ferrocenyl phosphines was designed, synthesiz

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29

Casitas, Montero Alícia. "Reactivity of well-defined organometallic copper(III) complexes in carbon-heteroatom bond forming reactions." Doctoral thesis, Universitat de Girona, 2012. http://hdl.handle.net/10803/81985.

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This thesis is focused on the unexplored field of organometallic copper(III) chemistry. Arylcopper(III) complexes have been proposed as key intermediates in Ullmann condensation reactions that consist in the coupling of aryl halides and heteroatom nucleophiles catalyzed by copper. The study of the reactivity of well-defined arylcopper(III) complexes may provide a better understanding of the mechanism of Ullmann condensation reactions, which is still under intense debate. In this doctoral dissertation we study the feasibility of well-defined arylcopper(III) complexes, which are stabilized withi

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30

Trenkle, James D. (James Douglas). "Phosphine-promoted cross-coupling reactions of propargylcopper reagents and alkenyl iodides and the total synthesis of (-)-gloeosporone via nickel-catalyzed epoxide-alkyne reductive macrocyclization." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/39582.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 2007.<br>Vita.<br>Includes bibliographical references.<br>I. Phosphine-Promoted Cross-Coupling Reactions of Propargylcopper Alkenyl Iodides Reagents and Alkenyl Iodides. An electron-rich phosphine additive is critical and sufficient for propargyl-selective couplings of propargylcopper reagents and alkenyl iodides. This method is complementary to those previously described, in which high allenyl selectivity is observed in analogous coupling reactions. While the basis of the phosphine effect requires further investigatio

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31

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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32

Holder, Grant Newton. "Redox reactivity of mononuclear and binuclear rhenium complexes." Diss., Georgia Institute of Technology, 1988. http://hdl.handle.net/1853/30392.

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33

羅政藩 and Chang-fan Lo. "Substitution and redox reactions of some binuclear platinum (II) and platinum (III) complexes." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1989. http://hub.hku.hk/bib/B31231901.

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34

Lo, Chang-fan. "Substitution and redox reactions of some binuclear platinum (II) and platinum (III) complexes /." [Hong Kong : University of Hong Kong], 1989. http://sunzi.lib.hku.hk/hkuto/record.jsp?B12505304.

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35

Kour, Gurpreet. "First principles investigations on transition metal based electrocatalysts for efficient clean energy conversion." Thesis, Queensland University of Technology, 2022. https://eprints.qut.edu.au/232798/1/Gurpreet_Kour_Thesis.pdf.

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This dissertation relates to the application of density functional theory to the design of novel nanoelectrocatalysts for various electrochemical reduction reactions such as carbon dioxide reduction reactions, carbon monoxide reduction reactions and nitrogen reduction reactions. Many electrocatalysts with high activity, excellent selectivity and stability were designed and engineered using first principle calculations. These findings could potentially guide the experimentalists for creating clean and sustainable energy resources.

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36

Moritz, Paul Stuart. "Substitution and redox chemistry of ruthenium complexes /." Title page, contents and summary only, 1987. http://web4.library.adelaide.edu.au/theses/09PH/09phm862.pdf.

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37

Saleh, Nail Asad. "Dynamical solvent effect in 1-(9-anthryl)-3-(4-dimethylaniline) propane charge transfer reactions /." free to MU campus, to others for purchase, 2002. http://wwwlib.umi.com/cr/mo/fullcit?p3060138.

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38

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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39

Hyman, Matthew P. "A theoretical study of the electrocatalytic oxygen reduction reaction and related reactions on platinum group metals." Connect to online resource, 2007. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3273680.

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40

Yan, Xuecheng. "Carbon-based Porous Materials for Electrochemical Reactions." Thesis, Griffith University, 2016. http://hdl.handle.net/10072/366852.

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The exploration of highly active and durable cathodic oxygen reduction reaction (ORR) catalysts with economical production cost is still the bottleneck to realize the large-scale commercialization of some emerging technologies, such as fuel cells and metal-air batteries. At present, the composite that contains expensive platinum (Pt) particles dispersed on a porous carbon support (e.g., activated carbon (AC)) is the most efficient ORR catalyst. In a common sense, the AC itself normally shows very low activity for the ORR, so the Pt particles are vital. Imagine that if we remove all of the Pt

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41

Krasik, Pavel. "Asymmetric ruthenium catalyzed reduction reactions." Thesis, University of Ottawa (Canada), 1994. http://hdl.handle.net/10393/6562.

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42

Sykes, Bridget Maree. "Reductively triggered internal cyclisation reactions." Thesis, University of Auckland, 1994. http://hdl.handle.net/2292/1977.

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Reductively triggered internal cyclisation reactions have been investigated as a prodrug system for the hypoxia selective release of aromatic nitrogen mustards. The observed pseudo-first-order rate coefficients of cyclisation of several model 2-aminoaryl-acetamides and propanamides have been measured. Cyclisation was observed to be strongly influenced by stereochemistry, whereas electron withdrawal from the amine-bearing ring resulted in a comparatively modest slowing of the rate of cyclisation. Protonation of the leaving group appeared to increase the rate of cyclisation, while changes in 4-s

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43

Smith, Graeme Sinclair. "Electrochemically induced addition reactions." Thesis, University of Edinburgh, 1987. http://hdl.handle.net/1842/11407.

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44

Barber, Drew. "Selenium In Thioredoxin Reductase: Resistance To Oxidative Inactivation, Oxidation States, And Reversibility Of Chemical Reactions." ScholarWorks @ UVM, 2018. https://scholarworks.uvm.edu/graddis/943.

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Selenium is a required trace element which was originally discovered by the Swedish chemist Jons Jacob Berzelius in 1817. It was initially believed to be a toxin as it was identified as being the cause of hoof maladies and excessive hair loss in horses that feed upon plants with high selenium content. It wasn’t until 1957 that the potential contributions of selenium to physiology were first demonstrated. Selenium is now known to play a critical role in the maintenance of human health. Interestingly, unlike other trace metals/semi-metals, selenium is directly incorporated into proteins in the f

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45

McEvoy, J. "Two-stage catalysis of reduction reactions." Thesis, University of Liverpool, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233867.

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46

Kwasny, Richard S. "Hazard assessment strategies for reduction reactions." Thesis, London South Bank University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.298377.

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Reduction reactions involving heterogeneous catalytic hydrogenations, complex metal hydrides, and to lesser degree hydrogen-transfer reactions, are regularly scaled-up in pilot plants. Unfortunately, thermal runaway incidents involving reduction reactions do occur, despite best efforts to prevent them through the application of a chemical reaction hazard assessment strategy. A review of the literature, plant incidents, thermochemical and calorimetric techniques, identified the requirements for a unique assessment strategy for reduction reactions. The preference was to safeguard the plant using

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47

Jenson, David L. Jenson. "Proton-coupled electron transfer and tyrosine D of phototsystem II." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/29667.

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Thesis (Ph. D.)--Chemistry and Biochemistry, Georgia Institute of Technology, 2010.<br>Committee Chair: Bridgette Barry; Committee Member: Ingeborg Schmidt-Krey; Committee Member: Jake Soper; Committee Member: Nils Kroger; Committee Member: Wendy Kelly. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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48

Oswald, Claire Louise. "Enantioselective copper-catalysed reductive Michael cyclisations." Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/4614.

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Hydrometalation of α,β-unsaturated carbonyl compounds provides access to reactive metal enolates, which can then be trapped by a suitable electrophile. The coppercatalysed reductive aldol reaction involves hydrometalation of an α,β-unsaturated carbonyl compound, followed by an inter- or intramolecular aldol reaction. While there have been numerous examples of copper-catalysed reductive aldol reactions reported in the literature, the corresponding reductive Michael reaction has been relatively understudied. Herein, the copper-catalysed reductive Michael cyclisation of substrates containing two

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49

Lippert, Cameron A. "Redox-active ligand-mediated radical coupling reactions at high-valent oxorhenium complexes: reactions relevant to water oxidation for artificial photosynthesis." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/41199.

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The making and breaking of O-O bonds has implications ranging from artificial photosynthesis and water oxidation to the use of O₂ as a selective, green oxidant for transformations of small molecules. Oxidative generation of O₂ from coupling of two H₂O molecules remains challenging, and well defined systems that catalytically evolve O₂ are exceedingly rare. Recent theoretical studies have invoked metal oxyl radicals (L[subscript n]M=O*) containing a singly occupied M-O π-type orbital as precursors to O-O bond forming events in both biological and synthetic water oxidation catalysts. However, th

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50

Choi, Eun-Young. "Studies on the reaction mechanism of the reductive half-reaction of Xanthine Oxidase /." The Ohio State University, 2000. http://rave.ohiolink.edu/etdc/view?acc_num=osu148819366523445.

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