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Dissertations / Theses on the topic 'Kinetic and mechanistic study'

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Published: 31 August 2024

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1

Whyte, Lynden J. "A kinetic and mechanistic study of tropospheric reactions." Thesis, University of East Anglia, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314391.

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2

Kalinga, Shivashankar. "Peroxynitrite-induced modifications of myoglobin : a kinetic and mechanistic study /." Zürich : ETH, 2005. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=16014.

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3

Siu, Tung. "Kinetic and mechanistic study of aqueous sulfide-sulfite-thiosulfate system." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0007/MQ45585.pdf.

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4

Scott, Laura-Marie. "Kinetic and mechanistic study of Lilestralis, a synthetic muguet fragrance molecule." Thesis, University of Aberdeen, 2011. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=165414.

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In the multi-step synthesis of Lilestralis, a synthetic muguet fragrance, the kinetics and mechanism of the formation of 3-(3-t-butylphenyl)-2-methylpropan-1-ol (m-LOL) and 4-(3-t-butylphenyl)-2-methylpropan-1-ol (p-LOL) from 2-methyl-3-phenylpropan-1-ol (MPP) and isobutylene using concentrated liquid phosphoric acid as a catalyst was investigated. By-products that include phosphate esters of MPP, m-LOL and p-LOL and oligomers of isobutylene were produced during this reaction and their role within the kinetics and mechanism was also investigated. When crystalline phosphoric acid is dissolved i
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5

Souza, Valdir Araujo de. "Corrosion and erosion-corrosion of wc-based cermet coatings - a kinetic and mechanistic study." Thesis, Heriot-Watt University, 2004. http://hdl.handle.net/10399/318.

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6

Ahlford, Katrin. "Asymmetric transfer hydrogenation of ketones : Catalyst development and mechanistic investigation." Doctoral thesis, Stockholms universitet, Institutionen för organisk kemi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-55412.

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The development of ligands derived from natural amino acids for asymmetric transfer hydrogenation (ATH) of prochiral ketones is described herein. In the first part, reductions performed in alcoholic media are examined, where it is found that amino acid-derived hydroxamic acids and thioamides, respectively, are simple and versatile ligands that in combination with [RhCp*Cl2]2 efficiently catalyze this particular transformation. Selectivities up to 97% ee of the corresponding secondary alcohols are obtained, and it is furthermore observed that the two different ligand classes, albeit based on th
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7

Gretton, Virginia Ann. "Kinetic and mechanistic study of aquated forms of platinium (II) complexes with nucleic acid derivatives." Thesis, University of York, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359254.

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8

Appleton, Amanda Jane. "A kinetic and mechanistic study of the liquid-phase reactions of ester-substituted alkylperoxyl radicals." Thesis, University of York, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265560.

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9

Trummer, Martin. "The effect of solid state inclusions on the reactivity of UO2 : A kinetic and mechanistic study." Doctoral thesis, KTH, Kärnkemi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-33070.

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The release of radionuclides is a key process in the safety assessment of a deep geological repository for spent nuclear fuel. A large fraction of the release is assumed to be a consequence of dissolution of the fuel matrix, UO2. In this doctoral thesis, the kinetics and the mechanisms behind oxidative U(IV) dissolution were studied. The eects of solid phase inclusions mimicking the presence of fission products, and solutes mimicking expected groundwater components were also evaluated. Palladium, as a model substance for noble metal particle (fission products) inclusions, was shown to catalyze
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10

Dey, Benu Kumar. "A study on metal ion complexation with a macrocyclic ligand : a thermodynamic, kinetic, and mechanistic investigation." Title page, contents and abstract only, 1991. http://web4.library.adelaide.edu.au/theses/09SM/09smd528.pdf.

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11

Nilsson, Kristina. "Oxidative dissolution of doped UO2 and H2O2 reactivity towards oxide surfaces : A kinetic and mechanistic study." Licentiate thesis, KTH, Tillämpad fysikalisk kemi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-145691.

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Oxidative dissolution of std. UO2 and UO2 doped with Cr2O3 and Al2O3, i.e. ADOPT, induced by H2O2 and γ radiation has been the main focus in this licentiate thesis. The catalytic decomposition of H2O2 on oxides like Gd2O3, HfO2, CeO2, Fe2O3 and CuO were also investigated. A kinetic study was performed by determining first and second order rate constants together with Arrhenius parameters for the decomposition of H2O2. The reactivity of H2O2 towards the oxides mentioned was observed to differ significantly despite their similarities. In the mechanistic study, the yields and dynamics of the form
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12

Yang, Chunhua. "Synthesis and Kinetic Mechanism Study of Phosphonopeptide as a Dead-End Inhibitor of cAMP-Dependent Protein Kinase." Thesis, University of North Texas, 1991. https://digital.library.unt.edu/ark:/67531/metadc500671/.

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DL-2-Amino-4-phosphonobutyric acid, an isostere of phosphoserine, was incorporated into the heptapeptide sequence, Leu-Arg-Arg-Ala-(DL-2-amino-4-phosphonobutyric acid)-Leu-Gly, for kinetic mechanistic studies of the cAMP-dependent protein kinase. To block the phosphono hydroxyl groups, methyl, ethyl and 4nitrobenzyl esters were studied as possible protecting groups. The phosphono diethyl ester of the N-Fmoc-protected amino acid was utilized in the synthesis of the heptapeptide. Two configurational forms of the protected peptide were obtained and were separated by C18-reverse phase HPLC. Charac
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13

Pillay, Kriveshini. "A kinetic and mechanistic study on the oxidation of chromium oxide in pure chemicals and in ferrometallurgical slags." Master's thesis, University of Cape Town, 2001. http://hdl.handle.net/11427/5415.

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Bibliography: leaves 103-108.<br>Chromium can exist in a number of oxidation states but the environmentally stable forms are trivalent (Cr(III)) and hexavalent (Cr(VI)) chromium. These two forms are noted for their different degrees of toxicity and mobility. Hexavalent chromium is more toxic and mobile and has been responsible for a number of illnesses in humans (Sheehan et. al., 1991). Elemental chromium and its compounds have a variety of uses in the industrial sector. The ferrometallurgical industry in particular makes use of chromium since this element imparts properties such as hardness a
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14

劉新權 and Sing-quan Lew. "Kinetic and mechanistic study of reactions of hydroxy, methoxy, methylthio, methylseleno and amino derivatives of some heterocyclicand homocyclic polyenes." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1991. http://hub.hku.hk/bib/B31232322.

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15

Sabbagh, Ingrid Theresa. "Metathesis catalysts : an integrated computational, mechanistic and synthetic study." Thesis, Rhodes University, 2006. http://hdl.handle.net/10962/d1006208.

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An integrated approach to the design of potential rutheniun-based metathesis catalysts is described, in which closely defined synthetic forays provide the focus and rationale for detailed computational and mechanistic studies. The ground-state geometry of a 1st-generation Grubbs catalyst has been explored at the molecular mechanics, semi-empirical and DFT levels, and the resulting structures have been shown to compare favourably with literature data and with the structure of a known crystalline analogue. The DMol³ DFT code has also been shown to represent accurately both the geometry of the co
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16

Sansone, John P. "The Kinetics of Epoxidation of A,B-Unsaturated Esters by Dimethyldioxirane: A Mechanistic Study." Digital Archive @ GSU, 2009. http://digitalarchive.gsu.edu/chemistry_theses/22.

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The epoxidation of a series of α,β-unsaturated esters by dimethyldioxirane was studied. Second order rate constants were determined under pseudo first order conditions. The epoxide of each ester upon full conversion was found to be the only isolable product. Second order rate constants for the cis-like ethyl tiglate showed a 4 fold increase over that of trans-like angelic methyl ester. The ester substituent was found to have little effect on overall rate constants. A comparison of a relatively strained cyclopentene carboxylate to the cyclohexene carboxylate showed a 2 fold increase in selectiv
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17

Lobb, Kevin Alan. "Camphor derivatives in asymmetric synthesis: a synthetic, mechanistic and theoretical study." Thesis, Rhodes University, 2008. http://hdl.handle.net/10962/d1006770.

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A series of 3,3-ethylenedioxy-exo- and endo- bornyl esters have been prepared and subjected to α-benzylation using lithium diisopropylamide and benzyl bromide. In the exo-series of esters the diastereofacial selectivity of benzylation was found to improve (up to 34% d.e.) as the steric bulk of the O-alkyl group increased, whereas in the endo-series, a surprising decrease in stereoselectivity was observed as the steric bulk increased – an observation attributed to flexibility of the metal-coordinated endo-enolate system, compared to the relative rigidity of the exo analogues. The conformational
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18

Buitrago, Elina. "Transition metal-catalyzed reduction of carbonyl compounds : Fe, Ru and Rh complexes as powerful hydride mediators." Doctoral thesis, Stockholms universitet, Institutionen för organisk kemi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-75795.

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A detailed mechanistic investigation of the previously reported ruthenium pseudo-dipeptide-catalyzed asymmetric transfer hydrogenation (ATH) of aromatic ketones was performed. It was found that the addition of alkali metals has a large influence on both the reaction rate and the selectivity, and that the rate of the reaction was substantially increased when THF was used as a co-solvent. A novel bimetallic mechanism for the ruthenium pseudo-dipeptide-catalyzed asymmetric reduction of prochiral ketones was proposed. There is a demand for a larger substrate scope in the ATH reaction, and heteroar
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19

Mueanngern, Yutichai. "Mechanistic Study for Selective Hydrogenation of Crotonaldehyde Using Platinum/Metal-Oxide Catalysts—A Gas-Phased Kinetics Study." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1462804731.

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20

Thinon, Olivier. "CO conversion over dual-site catalysts by the Water-Gas Shift Reaction for fuel cell applications : comparative mechanistic and kinetic study of gold and platinum supported catalysts." Thesis, Lyon 1, 2009. http://www.theses.fr/2009LYO10187.

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Les piles à combustible, alimentée par de l’hydrogène, représentent une solution prometteuse pour limiter la pollution. L’une des alternatives économiques envisagées à court et moyen terme est de produire l’hydrogène à partir d’un carburant tel que le méthane ou le bio-éthanol. Cette transformation a pour objectif d’obtenir un mélange de gaz riche en hydrogène avec une très faible teneur en CO, ce dernier étant un poison pour les piles de type PEM. La réaction de Water-Gas Shift (WGS) est une étape clé du procédé ; elle convertit CO en CO2 par réaction avec l’eau et fournit une quantité d’hydr
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21

Christmann, Julien. "Photochimie moléculaire des processus de photopolymérisation : de l'étude mécanistique à la modélisation cinétique." Thesis, Mulhouse, 2017. http://www.theses.fr/2017MULH0698.

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Ce travail de thèse aborde l’étude mécanistique de systèmes photoamorceurs complexes et la modélisation cinétique du processus de photopolymérisation. Dans un premier temps, le mécanisme photochimique d’un système combinant le [Ru(bpy)3]2+ et des agents RAFT pour l’amorçage et le contrôle d’un processus radicalaire a été étudié. Un transfert d’énergie a été clairement démontré, contredisant le mécanisme de transfert d’électron généralement proposé. Un système photoamorceur à 3 composants bicyclique dual ITX/IOD+/RSH a ensuite été considéré pour la synthèse de matériaux hybrides organiques-inor
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22

Montoya, Arango Juan Felipe. "Photocatalytic reactions: Mechanistic and kinetic implications." Doctoral thesis, Universitat Autònoma de Barcelona, 2013. http://hdl.handle.net/10803/131320.

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La Fotocatálisis Heterogénea con Dióxido de Titanio (TiO2) ha sido ampliamente estudiada en los últimos 30 años. Como resultado de este esfuerzo de investigación se han obtenido grandes avances en la comprensión de los fenómenos fundamentales involucrados en el proceso y se ha logrado la aplicación exitosa de varios dispositivos con tecnología fotocatalítica en áreas como la remediación medioambiental, la producción de energía renovable, y el diseño de materiales con propiedades de “autolimpieza”. Sin embargo, la comunidad científica en el campo de la fotocatálisis reconoce que existen diversa
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23

Jang, Mei-Huei. "Mechanistic and kinetic studies of Trimethylamine Dehydrogenase /." The Ohio State University, 2000. http://rave.ohiolink.edu/etdc/view?acc_num=osu1488191124572066.

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24

Guo, Xingwei. "Kinetic and mechanistic studies on reactions of quinones." Diss., Ludwig-Maximilians-Universität München, 2014. http://nbn-resolving.de/urn:nbn:de:bvb:19-177113.

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25

Hagger, A. J. "Kinetic and mechanistic aspects of amine-epoxide reactions." Thesis, University of Surrey, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234488.

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26

Zotova, Natalia. "Kinetic and mechanistic investigation of asymmetric organocatalytic reactions." Thesis, Imperial College London, 2008. http://hdl.handle.net/10044/1/1395.

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The utilisation of the reaction progress kinetic methodology to advance the mechanistic understanding of the asymmetric proline catalysed aldol and α-aminoxylation reactions is demonstrated in this work. Mechanistically meaningful reaction rate laws that describe the catalytic cycles of these reactions are derived experimentally, using initially the power law driving force analysis. With the aid of the employed kinetic methodology it is shown that the processes occurring on the catalytic cycle can be deconvoluted from the influence of the reactions occurring off the cycle, and each may be stud
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27

Kumar, Hans. "Mechanistic kinetic modeling of the hydrocracking of complex feedstocks." [College Station, Tex. : Texas A&M University, 2006. http://hdl.handle.net/1969.1/ETD-TAMU-1063.

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28

Silver, Sunshine Christine. "Kinetic, mechanistic and spectroscopic studies of spore photoproduct lyase." Diss., Montana State University, 2010. http://etd.lib.montana.edu/etd/2010/silver/SilverS1210.pdf.

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Spore forming organisms are a health threat to humans and other animals in part due to a remarkable resistance to UV irradiation. This resistance results from two events: first, the formation of a unique thymine dimer, 5-thyminyl-5,6-dihydrothymine (spore photoproduct, or SP) upon UV irradiation; and more importantly, the rapid and specific repair of this DNA photoproduct to two thymines by spore photoproduct lyase (SP lyase). Understanding the molecular basis of this radical-mediated DNA repair will ultimately allow for a better understanding of how to address the health risks caused by spore
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29

Poncipe, Carlo. "Some kinetic and mechanistic studies of epoxy resin cure." Thesis, University of Surrey, 1985. http://epubs.surrey.ac.uk/842722/.

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Imidazoles are widely used as epoxy curing agents, producing resins with good high temperature properties. This thesis is concerned with certain aspects of the mechanism by which cure occurs and is divided into five chapters, as follows: Chapter 1 contains a general review of epoxy resin chemistry and the use of imidazoles as curing agents. Chapter 2 deals with the preparation of a number of substrates used in this study, and also with the tritiation of a range of imidazoles and epoxides. Labelling patterns are interpreted using 3Hnmr spectroscopy. In Chapter 3 details of a radio-tracer kineti
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30

Du, Yi. "Layered cobalt hydroxides: synthesis, characterisation, kinetic and mechanistic studies." Thesis, University of Oxford, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.489431.

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The synthesis of layered cobalt hydroxides featuring triangular ordering, and the exploration of their phase conversion chemistry, is the main focus of this thesis. An introduction to cobalt hydroxide chemistry and to structurally similar compounds, with an emphasis on layered metal hydroxides, is given in Chapter 1. Novel synthetic methods, structural analysis and the most recent development for layered double hydroxides are sequentially introduced. The aim of the thesis is followed up as an extension of the existing work.
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31

Eapen, S. S. "Kinetic and mechanistic studies of aquated cisplatin-nucleobase interactions." Thesis, University of York, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.480533.

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32

Hlalele, Lebohang. "Kinetic and mechanistic features of nitroxide mediated (co)polymerization." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6515.

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33

Allegrezza, Michael LeGrande. "Mechanistic Insight Into Photo-Polymerization Techniques Through Kinetic Analysis." Miami University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=miami1605182244121264.

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34

Kahn, Kalju. "Kinetic and mechanistic characterization of the urate oxidase reaction /." free to MU campus, to others for purchase, 1998. http://wwwlib.umi.com/cr/mo/fullcit?p9924895.

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35

Roy, Biplab. "Interfacial kinetic and mechanistic studies on Dendrimer-liposome interactions." Thesis, University of North Bengal, 2018. http://ir.nbu.ac.in/handle/123456789/2773.

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36

Rogers, Emma Irene. "Electrode Kinetic and Mechanistic Studies in Room Temperature Ionic Liquids." Thesis, University of Oxford, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.514984.

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37

Mohamed, M. A. "Kinetic and mechanistic studies of thermal decomposition reactions of solids." Thesis, Queen's University Belfast, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374228.

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38

Li, Tie. "Kinetic and mechanistic investigation of reductive dechlorination at iron surfaces." Diss., The University of Arizona, 2002. http://hdl.handle.net/10150/279981.

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The long-term performance of zero-valent iron for reductive dechlorination of trichloroethylene (TCE) and perchloroethylene (PCE) was investigated. The effects of elapsed time, mass transfer limitations, influent halocarbon concentration, and water chemistry on reductive dechlorination rates were studied in a series of column reactors. Dechlorination rates were pseudo-first order in reactant concentration for submillimolar halocarbon concentrations. With increasing elapsed time, reaction rates deviated from pseudo-first order behavior due to reactive site saturation, and increased iron surface
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39

Wang, Zhihong. "Kinetic isotope effects, dynamic effects, and mechanistic studies of organic reactions." Texas A&M University, 2005. http://hdl.handle.net/1969.1/4886.

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Several organic reactions that could potentially involve coarctate transition states were investigated by a combination of experimental and theoretical studies. In the thermal fragmentation of ∆-1,3,4-oxadiazolines, the mechanism supported by kinetic isotope effects and theoretical calculations is a three-step process that does not demonstrate any special stabilization in coarctate transition states. Rather than undergoing a direct coarctate conversion to product, the mechanism avoids coarctate steps. The last step is a concerted coarctate reaction, but being concerted may be viewed as be
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40

Craig, Daniel Henry. "Kinetic and mechanistic studies of morphinone reductase and pentaerythritol tetranitrate reductase." Thesis, University of Leicester, 2000. http://hdl.handle.net/2381/29647.

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Morphinone reductase from Pseudomonas putida strain M10 and pentaerythritol tetranitrate (PETN) reductase from Enterobacter cloacae strain PB2 are very similar Class I / barrel flavoproteins capable of catalysing biotechnologically relevant reactions. The enzymes have been characterised and conclusions have been drawn about the catalytic and chemical mechanisms of both enzymes. The kinetics of the reductive half-reaction of both enzymes have been extensively investigated under pre-steady state conditions. Morphinone reductase and PETN reductase form a charge-transfer complex with their preferr
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41

Schweicher, Julien. "Kinetic and mechanistic studies of CO hydrogenation over cobalt-based catalysts." Doctoral thesis, Universite Libre de Bruxelles, 2010. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210036.

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During this PhD thesis, cobalt (Co) catalysts have been prepared, characterized and studied in the carbon monoxide hydrogenation (CO+H2) reaction (also known as “Fischer-Tropsch” (FT) reaction). In industry, the FT synthesis aims at producing long chain hydrocarbons such as gasoline or diesel fuels. The interest is that the reactants (CO and H2) are obtained from other carbonaceous sources than crude oil: natural gas, coal, biomass or even petroleum residues. As it is well known that the worldwide crude oil reserves will be depleted in a few decades, the FT reaction represents an attractive al
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42

Howes, Neil Uist Macdonald. "Kinetic and mechanistic studies in atmospheric chemistry using photoionization mass spectrometry." Thesis, University of Leeds, 2016. http://etheses.whiterose.ac.uk/15766/.

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The aim of this thesis is to provide updated, accurate kinetic (and where possible mechanistic) information regarding the oxidation pathways of various volatile organic compounds (VOCs) and trace gas species within the troposphere. The vast majority of the experiments discussed were conducted using a pulsed laser photolysis, photoionization mass spectrometry (PLP-PIMS) set-up, which operated at low pressures (p = 2 Torr). PLP-PIMS is a time-resolved technique can be used to directly monitor multiple species simultaneously and with time; details of this method are found in Chapter II. Initially
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43

Gómez, Martín Juan Carlos. "Spectroscopic, kinetic and mechanistic studies of atmospherically relevant I2-O3 photochemistry." Berlin Logos-Verl, 2006. http://deposit.d-nb.de/cgi-bin/dokserv?id=2927252&prov=M&dok_var=1&dok_ext=htm.

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44

Gómez, Martín Juan Carlos. "Spectroscopic, kinetic and mechanistic studies of atmospherically relevant I2/O3 photochemistry /." Berlin : Logos-Verl, 2007. http://deposit.d-nb.de/cgi-bin/dokserv?id=2927252&prov=M&dok_var=1&dok_ext=htm.

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45

Piety, Charles Andrew. "Kinetic and mechanistic studies of reactions of atomic chlorine with haloalkanes." Thesis, Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/27057.

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46

Garner, Mark. "Kinetic and mechanistic studies of Cisplatin derivatives with nucleic acid fragments." Thesis, University of York, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.306475.

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47

Ferretti, Antonio. "Kinetic and mechanistic studies of Pd-catalyzed amination of aryl halides." Thesis, Imperial College London, 2009. http://hdl.handle.net/10044/1/5483.

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The Pd-catalyzed amination of aryl halides (Buchwald-Hartwig amination) has become a versatile and widely used technology to synthesize and produce aromatic amines relevant in pharmaceutical and agrochemical industries. The aim of the work presented in this thesis is to achieve a better mechanistic understanding of this reaction. The methodologies used were not traditional and focused on kinetic studies, carried out using in-situ tools, mainly reaction calorimetry. Reactions using different amines have been considered: the kinetic behaviour of a straight-chain primary amine (n-hexylamine) was
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48

Islam, Zahidul. "Mechanistic and kinetic investigations of bacterial, human and cancerous thymidylate synthase." Diss., University of Iowa, 2017. https://ir.uiowa.edu/etd/5779.

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Thymidylate synthase (TSase) is an enzyme that catalyzes the conversion of uridylate to thymidylate, one of the four DNA building blocks. Functional perturbation of this enzyme causes thymidylate deprivation in cells, thereby halting DNA production. This makes TSase crucial for cell survival and proliferation. TSase is an attractive target for chemotherapy as treatment for colorectal, ovarian, pancreatic and an array of other cancers. TSase is one of the most highly conserved enzymes across the whole spectrum of life. There is more than 45% sequence identity between E. coli and human TSases. S
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49

Guo, Yafang <1991&gt. "Kinetic and mechanistic studies on unconventional antioxidant activities of natural compounds." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amsdottorato.unibo.it/9950/1/Yafang_Guo.pdf.

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In chapter one, the autoxidation kinetics of natural oil substrates, including, triglyceric sunflower oil, olive oil, terpenic squalene, and p-cymene were calibrated through differential oximetry methods. Calibration allows their use as reference oxidizable substrates for further studies, e.g. for quantitative testing of antioxidants under biomimetic settings. Several essential oils samples, of different botanical species or different productions of same species were studied for their antioxidant activity in inhibited autoxidation kinetics. Their antioxidant activities were matched with their
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50

Warner, Madeleine. "Ruthenium-Catalyzed Hydrogen Transfer Reactions : Mechanistic Studies and Chemoenzymatic Dynamic Kinetic Resolutions." Doctoral thesis, Stockholms universitet, Institutionen för organisk kemi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-89263.

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The main focus of this thesis lies on transition metal-catalyzed hydrogen transfer reactions. In the first part of the thesis, the mechanism for racemization of sec-alcohols with a ruthenium complex, Ru(CO)2Cl(η5-C5Ph5) was studied. The reaction between 5-hexen-2-ol and Ru(CO)2(Ot-Bu)(η5-C5Ph5) was studied with the aim to elucidate the origin of the slow racemization observed for this sec-alcohol. Two diastereomers of an alkoxycarbonyl complex, which has the double bond coordinated to ruthenium, were characterized by NMR and in situ FT-IR spectroscopy. The observed inhibition of the rate of r
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