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Rozprawy doktorskie na temat „Stereochemistry”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 25 lipca 2025

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1

Barr, Stephen Alexander. "Quinoline alkaloids : synthesis and stereochemistry." Thesis, Queen's University Belfast, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333796.

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2

Kreisberg, Jennifer Diane. "Studies directed towards the total synthesis of the natural product diazonamide A." Access restricted to users with UT Austin EID Full text (PDF) from UMI/Dissertation Abstracts International, 2001. http://wwwlib.umi.com/cr/utexas/fullcit?p3037513.

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3

Holzbaur, Ines Elizabeth. "Control of stereochemistry in erythromycin biosynthesis." Thesis, University of Cambridge, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.624787.

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4

Silvary, Sunil Raj. "StereoElectronic Controls in the Preparation of 1-Benzyl-l, 2, 4, 5-Tetrahydro-(3H)-2-Benzazepin-3-ones Via Beckmann Rearrangement." Fogler Library, University of Maine, 2007. http://www.library.umaine.edu/theses/pdf/SilvarySR2007.pdf.

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5

Bates, Tim Frank. "The Stereochemistry of Silenes and Alpha-Lithio Silanes." Thesis, North Texas State University, 1987. https://digital.library.unt.edu/ark:/67531/metadc332323/.

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When E- or Z-l-methyl-l-phenyl-2-neopentylsilene was generated by the retro-Diels-Alder vacuum-sealed tube thermolysis of its corresponding anthracene adduct, in the presence of various alkoxysilanes, only one diastereomeric adduct was formed in each case, showing that the reactions are stereospecific. An x-ray crystal structure of the methoxytriphenylsilane adduct of the E-silene confirmed its relative configuration as (R,S) or (S,R). This demonstrated that the addition of alkoxysilanes to silenes is stereospecific and syn. The relative configurations of similar alkoxysilane and alkoxystannan

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6

Pitt, A. R. "Stereochemistry and mechanism of isopenicillin N synthase." Thesis, University of Oxford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235052.

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7

Kennedy, D. A. "Crystallographic studies of relative and absolute stereochemistry." Thesis, Queen's University Belfast, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373533.

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8

Okunishi, Tomoya. "Stereochemistry of Lignan Biosynthesis in Thymelaeaceae Plants." Kyoto University, 2003. http://hdl.handle.net/2433/149001.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第10276号<br>農博第1348号<br>新制||農||869(附属図書館)<br>学位論文||H15||N3797(農学部図書室)<br>UT51-2003-H697<br>京都大学大学院農学研究科応用生命科学専攻<br>(主査)教授島田幹夫, 教授桑原保正, 教授坂田完三<br>学位規則第4条第1項該当

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9

Alexander, Andrew James. "The dynamical stereochemistry of photon-initiated bimolecular reactions." Thesis, University of Oxford, 1997. http://ora.ox.ac.uk/objects/uuid:b50aaa50-5605-42e3-aa2a-4f4686df942f.

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The product state specific stereodynamics of the photon–initiated reaction of O(¹D₂) with H₂ has been investigated by polarised Doppler–resolved laser induced fluorescence, under room temperature bulb conditions. Product state resolved differential cross sections, excitation functions and rotational angular momentum alignments are reported for the following product channels, O(¹D₂) + H₂(¹Σ<sup>+</sup><sub>g</sub> ; v = 0) -> OH(X²Pi; v' = 0;N' = 14; f) + H(²S). at a mean collision energy of 12 kJ mol<sup>-1</sup>. The data are compared with extensive state resolved quasi–classical trajectory (

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10

Carroll, Jonathan G. "Structure, stereochemistry and reactions of aza-polycyclic metabolites." Thesis, Queen's University Belfast, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322770.

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11

Dunlop, Robert. "Synthesis, stereochemistry and metabolism of small ring heterocycles." Thesis, Queen's University Belfast, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317057.

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12

Fallah, Asadollah. "Stereochemistry and reactivity of some 1,3-heterocyclic compounds." Thesis, University of Portsmouth, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328185.

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13

Turner, Helen Louise. "Absolute stereochemistry : the merits of VCD and XRD." Thesis, University of Southampton, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.430715.

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14

Adam, Michael Alexander. "Stereochemistry of crotylboronate additions to α, β-dialkoxyaldehydes". Thesis, Massachusetts Institute of Technology, 1985. http://hdl.handle.net/1721.1/15125.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1985.<br>MICROFICHE COPY AVAILABLE IN ARCHIVES AND SCIENCE<br>Includes bibliographies.<br>by Michael Alexander Adam.<br>Ph.D.

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15

Pang, Kah Ling Christine. "The stereochemistry of the SE2' reactions of propargylsilanes." Thesis, University of Cambridge, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.620320.

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16

Kwan, David Howe. "The stereochemistry of reduction in modular polyketide synthases." Thesis, University of Cambridge, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.611514.

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17

Morgan, Ian Trevor. "The stereochemistry of some E' and S_E2' reactions." Thesis, University of Cambridge, 1991. https://www.repository.cam.ac.uk/handle/1810/271907.

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18

Jones, Graeme Robert. "The stereochemistry of electrophilic attack on chiral dienylmethylsilanes." Thesis, University of Cambridge, 1992. https://www.repository.cam.ac.uk/handle/1810/272534.

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19

Zhang, Yiqun. "Stereochemistry of small molecules: Configurational and conformational control." Diss., Virginia Tech, 2007. http://hdl.handle.net/10919/26535.

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Stereochemistry is important aspect of chemistry that customarily includes the study of the relative spatial arrangement of atoms within molecules (static stereochemistry), and the study of the stereochemical requirements and outcomes of chemical reactions (dynamic stereochemistry). These two branches complement each other in modern stereochemistry. Chiral organometallics feature prominently in organic synthesis as reactive intermediates. The possibility of exploring their stereochemistry in synthesis is associated with the configurational stability of the metal-bearing stereogenic center. We

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20

Truneh, A. "The stereochemistry of some rearrangement reactions of steroids." Thesis, University of Sussex, 1987. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382483.

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21

Bower, Justin F. "Stereocontrol with 2-oxazolines." Thesis, Loughborough University, 1996. https://dspace.lboro.ac.uk/2134/10427.

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22

Tidswell, Edward C. "Anaerobic cometabolism : chiral bioreductions." Thesis, Aberystwyth University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342880.

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23

Emery, Vincent Clive. "Mechanistic aspects of bacteriochlorophyll A biosynthesis in Rhodopseudomonas sphaeroides." Thesis, University of Southampton, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.259664.

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24

Manickavasagar, Revathy. "The chemistry of B-norsteroids." Thesis, University of Sussex, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357615.

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25

Leslie, Colin Philip. "Stereochemistry of the S[E]2 reaction of pentadienylsilanes." Thesis, University of Cambridge, 1995. https://www.repository.cam.ac.uk/handle/1810/251946.

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26

Roberts, Ieuan Owain. "The absolute stereochemistry of various naturally occurring fatty acids." Thesis, Bangor University, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.429867.

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27

London, Laurisa A. "The effect of stereochemistry and conformation on nanocomposites formation." DigitalCommons@Robert W. Woodruff Library, Atlanta University Center, 2013. http://digitalcommons.auctr.edu/dissertations/1590.

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28

Tahanpesar, Elham. "Studies of the synthesis of cyclodextrins with novel stereochemistry." Thesis, Cardiff University, 2007. http://orca.cf.ac.uk/54588/.

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Proton-deuterium exchange of the carbinol hydrogens of gluco-, manno- and galacto-methyl- ot-D-pyranosides with deuterium oxide catalysed by ultrasonicated Raney nickel had low regioselectivity. 4,6-0-Benzylidene-methyl-cc-D-glucopyranoside underwent deuteration at C- 2 and C-3 and cleavage of the benzylidene group, whereas 4,6-O-isopropylidene-methyl-a-D- glucopyranoside was deuterated exclusively at C-2 (2H-NMR), which provides a rapid and economical route to 2- 2Hi -methyl-a-D-glucopyranoside. The diol moiety of 4,6-0-benzylidene-methyl-a-D-glucopyranoside was cleaved under aqueous (sodium

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29

Cook, Anthony Peter Fendick. "A treatment of stereochemistry in computer aided organic synthesis." Thesis, University of Leeds, 2015. http://etheses.whiterose.ac.uk/9147/.

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This thesis describes the author’s contributions to a new stereochemical processing module constructed for the ARChem retrosynthesis program. The purpose of the module is to add the ability to perform enantioselective and diastereoselective retrosynthetic disconnections and generate appropriate precursor molecules. The module uses evidence based rules generated from a large database of literature reactions. Chapter 1 provides an introduction and critical review of the published body of work for computer aided synthesis design. The role of computer perception of key structural features (rings,

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30

Riley, Andrew M. "Inositol phosphates and analogues : synthesis, stereochemistry and molecular recognition." Thesis, University of Bath, 1996. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.484225.

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31

McLamore, Dolores Sherita. "Determination of the relative stereochemistry of adducts resulting from the addition lithium dienolates to Michael acceptors." Thesis, Virginia Tech, 1994. http://hdl.handle.net/10919/43137.

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The addition of the lithium dienolate of ethyl crotonate to 2-cyclopentenone was studied to determine the stereochemical outcome of this Michael addition. Proof of the stereochemistry was provided via the unambiguous synthesis and comparison of ketone 73 from norcamphor 85.<br>Master of Science

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32

Schuff, Brandon Patrick. "Palladium (II)-catalyzed stereoselective formation of [alpha]-O-glycosides." Thesis, Montana State University, 2007. http://etd.lib.montana.edu/etd/2007/schuff/SchuffB0507.pdf.

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33

Tang, Yongping. "Investigation of the stereochemistry of macrocyclic ligand complexes: [Ni(tetramethylcyclam)][superscript]2+ and [brace]Co(Me[subscript]6[14]dieneN[subscript]4)CI[subscript]2+[brace]." Thesis, Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/26951.

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34

Laffosse, Miguel Diaz. "Stereoselective carbon-carbon bond formation via sulfur stabilized carbanions." Thesis, Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/27171.

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35

Corry, Denis Albert Kenneth. "Mechanistic and microstructural analysis of ring-opening metathesis polymerisation." Thesis, Queen's University Belfast, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266699.

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36

Russel, A. T. "Stereocontrol in organic chemistry : Some new approaches." Thesis, University of Salford, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381701.

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37

Uppal, Sukhjinder Singh. "Preparation of η³-allylmolybdenum complexes using cis-Mo(CO)₄(THF)₂ : application to the synthesis of methyl pseudomonate C". Thesis, University of Leeds, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.275796.

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38

Boote, Craig. "Structural studies of deoxyribonucleic acids using diffraction and spectroscopic methods." Thesis, Keele University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.287969.

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39

Collett, Lynne Alison. "Structural and stereochemical investigations of terrestrial and marine pyrone metabolites." Thesis, Rhodes University, 1997. http://hdl.handle.net/10962/d1005013.

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This thesis presents an investigation into the chemistry of 6 substituted 5, 6-dihydro-a-pyrone compounds. A comprehensive review of these compounds was published in 1989 and the subsequent literature is covered in an updated review presented below. Eight 6-substituted 5,6-dihydro-a-pyrone metabolites from three different South African plant species Cryptocarya latijolia, Syncolostemon densiflorus, and Syncolostemon argenteus have been the subject of structural and stereochemical investigations. The absolute stereochemistry of the known compound "triacetate" from C. latijolia has been establis

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40

Beck, Daniel Antony Speedie. "Stereoselective intramolecular Michael addition reactions of pyrrole and their application to natural product syntheses /." View thesis entry in Australian Digital Theses Program, 2006. http://thesis.anu.edu.au/public/adt-ANU20070130.130009/index.html.

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41

Shen, Lan. "Studies directed toward the syntheses of cyathins and diazonamides /." Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.

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42

Hemperly, Susan Barbara. "Mechanistic studies of diastereoselective cyclopropanations of homochiral ene-ketals and synthesis and resolution of diastereomeric alpha-hydroxycycloalkanone ketals." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184886.

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A series of homochiral ene ketals were prepared and subjected to the Simmons-Smith cyclopropanation. A mechanistic model was formulated to explain the observed diastereoselectivity seen for the common ring systems. Diastereoselectivity is thought to result from preferential chelation of the Simmons-Smith reagent at the least sterically hindered lone pair of electrons on the dioxolane oxygen proximal to the alkene. The role of dioxolane oxygen was inferred from studies with a hydrocarbon model system. The effect of cyclohexene ring conformation on the diastereoselectivity was examined for confo

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43

Cooper, Andrew Donovan. "Resolution of enantiomers using cyclodextrins in NMR and HPLC." Thesis, University of Bath, 1991. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.292808.

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44

Li, Manqing. "The stereochemistry of substituent effects in alpha-sulfonyl carbanion formation." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0018/NQ58146.pdf.

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45

Sun, Han. "Stereochemistry of Challenging Natural Products Studied by NMR-based Methods." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2012. http://hdl.handle.net/11858/00-1735-0000-000D-FD1A-F.

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46

Hamilton, Lynne. "Synthesis, stereochemistry and reactions of quinoline, isoquinoline and acridine metabolites." Thesis, Queen's University Belfast, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334710.

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47

O'Loughlin, Julian Matthew Adrian. "Control of absolute stereochemistry in the aza-(2,3)-Wittig rearrangement." Thesis, University of Nottingham, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.415867.

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48

Vergnolle, Olivia. "The stereochemistry of dehydration in the Borrelidin modular polyketide synthase." Thesis, University of Cambridge, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.611827.

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49

Geesi, Mohammed. "A synthetic approach to determine the stereochemistry of diepomuricanin A." Thesis, University of Southampton, 2014. https://eprints.soton.ac.uk/369347/.

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The total synthesis of bis-epoxide acetogenin, diepomuricanin, has been investigated in order to determine the absolute stereochemistry within the bis-epoxide region. Two approaches (linear and tethered-metathesis) were attempted. In the linear approach, two routes were investigated. In the first one an intermediate aldehyde 248 was created in six steps in order to investigate the asymmetric α-oxidation and diastereoselective additions of organometallic reagents. Model studies using octanal met with moderate success, and highlighted the sensitivity of the α-oxidation products. The instability

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50

Buckle, Michael James Christopher. "The stereochemistry of some SE2' reactions of allylsilanes and allenylsilanes." Thesis, University of Cambridge, 1993. https://www.repository.cam.ac.uk/handle/1810/272372.

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