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Dissertations / Theses on the topic 'Organic compounds – Synthesis ; Catalysis'

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1

Jones, Charlotte E. S. "Enantioselective homogeneous catalysts for the synthesis of fluorinated organic compounds." Thesis, University of St Andrews, 2011. http://hdl.handle.net/10023/2611.

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This thesis is divided into three main results chapters that reflect the path my research took. In the first results chapter, the first organocatalyst for the carbonyl-ene reaction was discovered and found to give high conversion using 1,3-bis(3,5-bis(trifluoromethyl)phenyl)thiourea. Various carbonyl and alkene precursors were examined in the ene reaction in both catalysed and uncatalysed reactions. It was found that ene reactions using fluoral and ethyl trifluoropyruvate give higher rates of reaction when compared to other carbonyl compounds. A novel enantiopure thiourea was synthesised and t
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2

Huh, Billy K. "Structural effects in Fischer-Tropsch synthesis over bimetallic supported catalysts." Diss., Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/11832.

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3

Fair, Barbara E. "An investigation of omega-phase catalysis." Diss., Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/30308.

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4

Collins, Beatrice Samora LeFanu. "New catalytic methods and strategies for chemical synthesis." Thesis, University of Cambridge, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.648556.

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5

Ou, Jun, and 欧军. "Asymmetric reactions induced by phase-tagged phosphoric acid organocatalysts and copper hydride-catalyzed reductions of unsaturatedthioesters." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B47849708.

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Two syntheses of non-cross-linked polystyrene-supported TADDOL-based phosphoric acid organocatalyst have been developed. The optimal polymer-supported catalyst 2.29d exhibited comparable catalytic activity to its small molecule counterpart in asymmetric Mannich-type reactions, and the syntheses of several chiral β-amino esters were demonstrated using 2.29d as catalyst. However, when this TADDOL-based phosphoric acid was immobilized on a polystyrene cross-linked with 1,4-bis(4-vinylphenoxy)butane, ie. JandaJelTM, the catalytic activity diminished in the first recycling and reuse of the
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6

Hermeke, Julia. "Chiral phosphonium ion tagged and spiroindane-based organocatalysts." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hdl.handle.net/10722/205871.

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The research on asymmetric organocatalysis has been intensifying since the beginning of 2000. The growing interest in this research area is driven by the importance of the chemical synthesis of enantiomerically pure products. While the general field of asymmetric organocatalysis has been explored intensively, the recyclability of organocatalysts has not really been considered. The attachment of phosphonium ion phase tags to chiral binaphthyl-based phosphoric acid catalyst and the use of these materials in a range of organocatalytic asymmetric Friedel-Crafts reactions of indoles have bee
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7

Chen, Lingyan. "CaSH (camphor sulfonyl hydrazine) and CSI (chiral sulfonimide) organocatalysis." HKBU Institutional Repository, 2010. http://repository.hkbu.edu.hk/etd_ra/1186.

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8

Aparece, Mark Docto. "Synthesis of Organoboron Compounds via a Palladium-Induced 1,2-Metallate Shift Mechanism:." Thesis, Boston College, 2020. http://hdl.handle.net/2345/bc-ir:108927.

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Thesis advisor: James P. Morken<br>This dissertation describes the development of various palladium-catalyzed syntheses of organoboron compounds with the 1,2-metallate shift of organoboron “ate” complexes as a common mechanistic feature. Chapter one discusses the history of the 1,2-metallate shift with a focus on reactions promoted by transition metals, followed by my work on the palladium-catalyzed, enantioselective, halide-tolerant conjunctive cross-coupling reaction to enable the use of Grignard reagents and arylbromides. Chapter two discusses the attempt to engage allylic electrophiles in
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9

Lo, Kar-yan. "Gold catalysis stereoselective synthesis of propargylamines and axially chiral allenes, and application on natural product modifications /." Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B41758122.

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10

Lo, Kar-yan, and 盧嘉茵. "Gold catalysis: stereoselective synthesis of propargylamines and axially chiral allenes, and application on naturalproduct modifications." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B41758122.

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11

He, Hao. "Organocatalysis : hydrazine and sulfonimide as new functionalities in asymmetric organocatalysis." HKBU Institutional Repository, 2009. http://repository.hkbu.edu.hk/etd_ra/1104.

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12

Jing, Lin. "Chiral Ý-amino sulfoxides and chiral sultams in asymmetric synthesis." HKBU Institutional Repository, 2000. http://repository.hkbu.edu.hk/etd_ra/261.

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13

Barrios, Antúnez Diego-Javier. "α functionalization of carbonyl compounds via Brønsted and Lewis base organocatalysis". Thesis, University of St Andrews, 2018. http://hdl.handle.net/10023/15667.

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This thesis describes the development of new methodologies promoted by bifunctional Brønsted basic H-bonding catalysis and Lewis basic organocatalysts. Chapter 2 describes the synthesis of novel chiral guanidines and their application as Brønsted and Lewis base catalysts in a variety of processes. Chapter 3 screens an array of Brønsted basic organocatalysts for the synthesis of trans-dihydrobenzofurans. A tertiary amine-thiourea bifunctional catalyst is used for an intramolecular Michael addition using keto-enones. The desired dihydrozofurans were obtained in excellent yield and with excellent
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14

Rhee, Jong Uk. "Part I. Synthesis of n-heterocyclic furanosides and pyranosides via 5- or 6-exo-trig-radical cyclization. Part II. (a) Palladium catalyzed silystannylative cyclization of diynes and allenynes. (b) Regioselective Diels-Alder reaction of vinylsilane and its application to Papulacandin D core structure." Connect to this title online, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1078850581.

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Thesis (Ph. D.)--Ohio State University, 2004.<br>Title from first page of PDF file. Document formatted into pages; contains xx, 456 p.; also includes graphics Includes bibliographical references (p. 449-456). Available online via OhioLINK's ETD Center
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15

Wu, Huafeng. "Design and synthesis of novel chiral arsines for asymmetric wittig reactions and Pd-catalyzed asymmetric allylic alkylation and asymmetric heck reactions /." View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?CHEM%202004%20WU.

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16

Teoh, Euneace Ching Mei. "Synthesis of amino acids by metal-catalysed reactions." Monash University, School of Chemistry, 2004. http://arrow.monash.edu.au/hdl/1959.1/9633.

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17

Zhou, Congying, and 周聰穎. "Ruthenium porphyrins and dirhodium (II, II) carboxylates catalyzed ylide-mediated cycloadditions and carbenoid transfer reactions." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B31046484.

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18

McIntosh, Melissa Clark Timothy B. "Copper-catalyzed diboration of ketones : facile synthesis of tertiary a-Hydroxyboronate esters /." Online version, 2010. http://content.wwu.edu/cdm4/item_viewer.php?CISOROOT=/theses&CISOPTR=336&CISOBOX=1&REC=11.

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19

Hurley, Jeffrey S. "Phase transfer catalysis of deuterium exchange reactions : II kinetic and mechanistic studies of the thermal decomposition of glycolate and hedta in the presence of the sodium salts of hydroxide, nitrate, nitrite, aluminate and carbonate." Diss., Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/30717.

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20

Malkin, Hugh. "Synthetic approaches to C2-symmetric and axially chiral compounds for recognition and catalysis." Thesis, Keele University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301323.

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21

Lo, Kai-yip, and 羅啟業. "Synthesis of aza-bicyclic compounds via palladium-catalyzed cascade cyclization reactions." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B47849691.

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 A palladium-catalyzed oxidative cascade cyclization reaction has been developed to prepare pyrrolizidine and indolizidine derivatives from simple aliphatic alkenyl amides 2.1ak in one step in moderate to good yields, using Pd(TFA)2 as the catalyst and molecular oxygen (1 atm) as a green oxidant. This cascade cyclization can also proceed for ring-containing unsaturated amides 2.1ln to afford azatricyclic systems. Palladium(II)-catalyzed dehydrohalogenation cascade cyclization reactions have been developed to synthesize polycyclic pyrrolizidine derivatives from iodoalkenylanilides 4.1ai
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22

Gonzalez-Santiago, Berenice. "Synthesis and properties of scandium carboxylate metal-organic frameworks." Thesis, University of St Andrews, 2015. http://hdl.handle.net/10023/6904.

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This work investigated the synthesis, characterisation and properties of known and novel scandium carboxylate Metal-organic Frameworks (MOFs). The first part reports the performance of these Sc-MOFs as Lewis acid catalysts. The porous MOF scandium trimesate MIL-100(Sc) and the scandium terephthalates such as MIL-101(Sc), MIL-88B(Sc) and MIL-68(Sc) (prepared as the Sc-analogue for the first time), and scandium biphenyldicarboxylate MIL-88D(Sc) were prepared and tested as Lewis acid catalysts. Chromium MIL-101 and MIL-100 and scandium-exchanged zeolites were prepared for comparison. Moreover, su
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23

Rodriguez, Patricia Fernandez. "Streamlined synthesis of taxol analogues." Thesis, University of Oxford, 2017. https://ora.ox.ac.uk/objects/uuid:58d4a7f3-038e-4c4a-9aec-67267277670f.

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This thesis centres on the synthesis of taxol analogues via late-stage hydroxylation with P450 enzymes. To accomplish this, the taxane core, specifically taxa-4(5),11(12)-dien-2-one, was synthesised by classical synthetic methods, and subsequently oxidised using P450<sub>BM3</sub> mutants. Chapter 1 introduces enzymatic catalysis, and the advantages and disadvantages of its application to organic synthesis. Additionally, an overview of taxol, including its discovery, mode of action, biosynthesis and large-scale production, and a summary of the previously reported approaches to the taxane core
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24

El, Assal Z. (Zouhair). "Synthesis and characterization of catalysts for the total oxidation of chlorinated volatile organic compounds." Doctoral thesis, Oulun yliopisto, 2018. http://urn.fi/urn:isbn:9789526221267.

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Abstract The harmful emissions of chlorinated volatile organic compounds (CVOCs) originate only from man-made sources. CVOCs are used in a variety of applications from pharmaceuticals production to decaffeination of coffee. Currently, CVOC emissions are limited by strict legislation. For these reasons, efficient CVOC abatement technologies are required. Catalytic oxidation is very promising option for this purpose, since catalysts can be tailored to each case to maximize the efficiency and minimize the formation of unwanted products, such as dioxins or Cl2. The goal of this thesis was to study
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25

Robinson, Emily R. T. "α,β-unsaturated acyl ammonium intermediates in asymmetric organocatalysis". Thesis, University of St Andrews, 2015. http://hdl.handle.net/10023/7010.

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This thesis details investigations into the generation and synthetic utility of α,β-unsaturated acyl ammonium intermediates using isothioureas as Lewis base organocatalysts to generate a range of heterocyclic products. Initial investigations focussed on the development of a Michael addition-lactonisation protocol utilising α,β-unsaturated acyl ammonium intermediates (generated in situ from HBTM 2.1 and α,β-unsaturated homoanhydrides) and a range of 1,3-dicarbonyl nucleophiles. Products could be isolated as lactones or as ring-opened highly functionalised esters, giving good yields and excellen
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26

Yue, Congyong. "Palladium complexes of aromatic amide-derived phosphines and application for synthesis of biaryls, nitrogen heterocycles, and benzo[b]furans /." View abstract or full-text, 2009. http://library.ust.hk/cgi/db/thesis.pl?CHEM%202009%20YUE.

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27

Albanesi, Todd E. (Todd Edward). "The Synthesis and Reactivity of Bis(silyl)acetylenes." Thesis, North Texas State University, 1987. https://digital.library.unt.edu/ark:/67531/metadc501126/.

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Six bis(silyl)acetylenes with the following varied silicon substituents were prepared: I (Me, Me); II (H, H); III (Cl, H); IV (Cl, Cl); V (OMe, H); VI (OMe, OMe). While I and II may be prepared by the reaction of dilithio- or bis(bromomagnesium)-acetylide with appropriate chlorosilane, similar reactions designed to give III - VI give oligomers, YMe_2Si(C≡C-SiMe_2)_nY, VII, Y = Cl, OMe, as the major products indicating that the acetylenic functionality on silicon activates the chlorosilane toward nucleophilic substitution. Compounds III and IV were prepared by free radical chlorination of II. M
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28

Black, Daniel. "Imines in copper-catalyzed cross-coupling reactions." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=102960.

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The purpose of this study was to develop new catalytic methods to mediate carbon-carbon bond forming reactions with imines under mild conditions and in a general manner. We found that copper catalysts were compatible in cross-coupling of a range of mild organometallic reagents, providing simple, efficient routes to alpha-substituted amides and amines.<br>Chapter 2 of this thesis describes a new copper-catalyzed multicomponent synthesis of alpha-substituted amides. This reaction was developed based upon previous work in this laboratory, which showed that palladium catalysts were competent in St
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29

鍾韻盈 and Wan-ying Cecilia Chung. "Development of a multipolymer reaction and polyfunctional polymeric catalysts." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2008. http://hub.hku.hk/bib/B39707441.

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30

Marelli, Enrico. "Nickel- and palladium-catalysed deprotonative cross-couplings." Thesis, University of St Andrews, 2017. http://hdl.handle.net/10023/15603.

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Transition metal-catalysed cross coupling chemistry is a valuable tool for synthetic organic chemistry, enabling the preparation of compounds of great interest. The catalytic metal of choice is usually palladium, which generally offer better performances in term of catalytic activity and easy handling. On the other hand, the use of nickel in this class of reactions is gaining attention, as it would provide more economically and environmentally sustainable processes. Deprotonative cross couplings are a subgroup of these reactions, in which the nucleophile is generated in situ by direct deproton
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31

Guo, Jianping. "Synthesis, structure and characterization of long distance electrostatic force and hydrogen bond supramolecular polymers synthesis, structure and characterization of bis[2,4-di(pyridyl)-1,3,5-triazapenta-dienato] metal complexes." HKBU Institutional Repository, 2004. http://repository.hkbu.edu.hk/etd_ra/506.

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32

Lydon, Kevin M. "Asymmetric synthesis in insertion reactions of #alpha#-diazocarbonyl compounds catalysed by chiral rhodium (II) carboxylates." Thesis, Queen's University Belfast, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.287443.

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33

Boogaerts, Ine Ida Françoise. "Novel catalysts for the hydroxymethylation of allyl alcohol : a convenient synthetic route to 1, 4-butanediol." Thesis, University of St Andrews, 2009. http://hdl.handle.net/10023/959.

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Hydroxymethylation catalysis provides a valuable strategy for the high volume production of alcohols from α-alkenes. Generally this involves a hydroformylation-hydrogenation sequence, but the capacity to optimise selectivity for each transformation is limited. Condensation reactions between aldehyde products and alcohol products frustrate process economics. By an alternative scheme, all relevant bond-forming reactions occur in a single mechanism. This thesis describes several approaches to catalyst development and the application of derived systems for the hydroxymethylation of allyl alcohol.
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34

Huang, Yan. "Synthesis, Kinetic and Photocatalytic Studies of Porphyrin-Ruthenium-Oxo Complexes." TopSCHOLAR®, 2010. http://digitalcommons.wku.edu/theses/182.

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Macrocyclic ligand-complexed transition metal-oxo intermediates are the active oxidizing species in a variety of important biological and catalytic oxidation reactions. Many transition metal catalysts have been designed to mimic the predominant oxidation catalysts in Nature, namely the cytochrome P450 enzymes. Ruthenium porphyrin complexes have been the center of the research and have successfully been utilized, as catalysts, in major oxidation reactions such as the hydroxylation of alkanes. This study focuses on kinetic and photocatalytic studies of oxidation reactions with wellcharacterized
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35

Zhang, Ye. "Development of amide-derived P,O-ligands for Suzuki cross-coupling of aryl chlorides and the asymmetric version /." View abstract or full-text, 2005. http://library.ust.hk/cgi/db/thesis.pl?CHEM%202005%20ZHANG.

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36

Smith, Siobhan Rose. "Applications of isothiourea generated ammonium enolates in asymmetric synthesis." Thesis, University of St Andrews, 2014. http://hdl.handle.net/10023/11532.

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This thesis describes expansion of the ability of isothioureas to act as organocatalysts in formal [2+2]-, [3+2]- and [4+2]-cycloadditions between carboxylic acids and various acceptors via Type I ammonium enolate intermediates. Chapter 2 describes the optimisation and investigation of [2+2]-cycloadditions from ammonium enolates and N-sulfonylimines as the two components. The development of this methodology allows successful access to highly stereodefined β-lactams and, following in situ ring-opening, β-aminoesters. The products are obtained from either preformed homoanhydrides or directly fro
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37

Iro, Emmanuel. "Synthesis, characterisation and testing of Au/SBA-15 catalysts for elimination of volatile organic compounds by complete oxidation at low temperatures." Thesis, Teesside University, 2017. http://hdl.handle.net/10149/621755.

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Optimised SBA-15 mesoporous silica with high surface area (794 m2/g) and very thick pore wall (~ 5.0 nm), which maintained its structural and hydrothermal stability in steam, up to 800 °C was successfully synthesised and used as support material for synthesis of Au/SBA-15 catalysts. Gold nano-particles of different sizes were anchored on SBA-15 using cationic gold precursor (Au(en2)Cl3), post or one pot functionalisation of SBA-15 with MPTMS, APTMS or phosphine ligand before gold loading via HAuCl4 gold precursor. Characterisation of the catalysts were done using the following techniques: Scan
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38

Berkner, Joachim Ernst. "Synthesis and characterization of new organic electrically conducting polymers : part II: Direct carboxylation of sulfolene : part III: Effect of water on PTC systems : part IV: Mechanism of Phase transfer catalytic N-alkylation reactions." Diss., Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/30715.

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39

Parra, Montes Claudio. "Development of Organocatalytic Tandem Processes for the Asymmetric Synthesis of Nitrogen-Containing Compounds." Doctoral thesis, Universitat de Barcelona, 2015. http://hdl.handle.net/10803/301627.

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En esta tesis se desarrolla una metodología general para la construcción tándem de manera asimétrica de importantes “building blocks” que se encuentran presentes en la estructuras de muchos productos naturales complejos y biológicamente activos, así como en compuestos de interés farmacológico significativo. Se ha desarrollado una metodología general para la síntesis del núcleo octahidroindolico utilizando materiales de partidas sencillos mediante (a) el tratamiento de un ß-ceto éster tert-butilico que presenta en su estructura un grupo amino monoprotegido y crotonaldehído en condiciones bás
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40

Sasaki, Ikuo. "Development of Novel Synthetic Methods of Organosilicon Compounds Utilizing Silicon-Containing Reactive Intermediates." Kyoto University, 2020. http://hdl.handle.net/2433/253508.

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41

Kuvayskaya, Anastasia. "Immobilization of Phosphotungstic Acid on Silica Surface for Catalytic Alkylation of Aromatic Compounds." Digital Commons @ East Tennessee State University, 2020. https://dc.etsu.edu/etd/3738.

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Superacidic mesoporous materials containing covalently embedded PTA were synthesized by sol-gel method. Tetraethyl orthosilicate (TEOS) and phosphotungstic acid (PTA) were used as precursors in the synthesis, ionic and nonionic surfactants were used as pore-forming agents, the reaction proceeded in acidic media. TEM images revealed mesoporous structure with embedded PTA clusters. FT-IR spectra of obtained materials contained characteristic bands of PTA at 957 cm-1. Synthesized catalysts had high BET surface area and high concentration of acidic sites. Alkylation of 1,3,5-trimethylbenzene by 1-
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42

Lin, Xufeng, and 林旭鋒. "Density functional theory studies of selected transition metals catalyzed C-C and C-N bond formation reactions." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2007. http://hub.hku.hk/bib/B39359645.

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43

Miller, John Richard Anthony. "Synthesis of optically active amino-acids and some chiral compounds as intermediates to squalestatin using novel organometallic catalysts and material from the chiral pool." Thesis, University of Essex, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302567.

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44

Lucchese, Angélica Maria. "Síntese de sais de piridínio novos catalisadores de transferência de fase." Universidade de São Paulo, 1997. http://www.teses.usp.br/teses/disponiveis/46/46135/tde-05092014-165559/.

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Neste trabalho foi preparada uma série de sais de piridínio, com subsequente investigação da sua atividade catalítica e indução assimétrica em reações de adição de Michael e alquilações de metilenas ativas. Os sais de piridínio foram preparados pela reação de tetrafluorborato de 2,4,6-trifenilpirílio e 2,4,6-trimetilpirílio com aminas, aminoálcoois e/ou aminoácidos. As reações em que se efetuou o teste catalítico destes sais foram: a) adição de cianoacetato de etila, N-acetamidomalonato de dietila e nitrometano à chalcona e de tiofenol à 2-ciclohexenona; b) alquilação de cianoacetato de etila
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45

Paiva, Derisvaldo Rosa. "Estudos da diastereosseletividade da adição de nucleófilos ao grupo carbonila de β-cetossulfóxidos sulfanilados derivados da 1-indanona e 1-tetralona." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/46/46136/tde-18082011-092446/.

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Neste trabalho, foi proposta a preparação e redução, seguida de hidrólise oxidativa, de alguns derivados imínicos da 2-metilsulfinil-2-metilsufanil-1-tetralona e da 2-metilsulfinil-2-metilsulfanil-1-indanona. A 2-metilsulfinil-O-metil-oxima da 1-tetralona foi preparada pela oxidação da 2-metilsulfanil-O-metil-oxima. O sulfóxido assim obtido pôde ser sulfanilado empregando-se terc-butil lítio e metanotiolsulfonato de metila, resultando um único diastereoisômero que se mostrou inerte na reação de redução da função imínica com NaBH4. Tentativas de preparar a N-tosil-imina da 2-metilsulfinil-1-tet
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46

Gallen, Ortiz Albert. "P-Stereogenic ligands with the tert-butylmethylphosphine fragment. Coordination chemistry and catalysis of their organometallic complexes." Doctoral thesis, Universitat de Barcelona, 2019. http://hdl.handle.net/10803/666577.

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The Thesis deals with the preparation, coordination chemistry and use in asymmetric homogeneous catalysis of several optically pure P-stereogenic ligands containing a tert-butylmethylphosphino fragment. In the first part a highly stereoselective synthesis of the Secondary Phosphine Oxide (SPO) tert-butylmethylphosphine oxide is presented. Despite its simplicity, the stereoselective synthesis of this SPO had not been described in the literature. It is known that SPOs present a tautomeric equilibrium between the air-stable pentavalent form (phosphine oxide) and the trivalent form (phosphinous a
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47

Campbell, Craig D. "Lewis base-promoted organocatalysis : O- to C-carboxyl transfer reactions." Thesis, University of St Andrews, 2010. http://hdl.handle.net/10023/2609.

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This work describes the application of a variety of Lewis bases, encompassing predominantly N-heterocyclic carbenes (NHCs), but also the use of imidazoles, aminopyridines, amidines and isothioureas, as effective catalysts in the dearomatisation of heterocyclic carbonates, predominantly the rearrangement of oxazolyl carbonates to their C-carboxyazlactone isomers by means of the Steglich rearrangement. This rearrangement reaction has been investigated extensively, with the development of simplified reaction procedures and the invention of domino cascade protocols incorporating this transformatio
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48

Souza, Andrea Luzia Ferreira de. "Síntese e estudos de Diels-Alder de 2-sulfinil-3,6-dimetil-1,4-benzoquinonas visando a síntese de precursores enantiopuros do hirsuteno." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/46/46135/tde-05102016-170112/.

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Foram preparadas algumas 2-sulfinil-3,6-dimetil-1,4-benzoquinonas racêmicas (contendo substituintes p-tolila, terc-butila, iso-butila e iso-propila ligados ao enxofre) e estudadas as suas reações de Diels-Alder com ciclopentadieno, sob condições térmicas e catalíticas. Com estes estudos foi constatada a habilidade destas quinonas em gerar majoritariamente certos tipos de adutos, dependendo das condições utilizadas. Na ausência de catalisadores, formaram-se principalmente os adutos resultantes da aproximação do ciclopentadieno sobre a dupla C-C não sulfinilada, pela face da quinona para a qual
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Hofmann, Martin [Verfasser], Oliver [Akademischer Betreuer] Reiser, Julia [Akademischer Betreuer] Rehbein, and Frank-Michael [Akademischer Betreuer] Matysik. "The influence of high hydrostatic pressure on structure and reactivity of small organic catalysts and the synthesis of ¹⁵N-labeled compounds / Martin Hofmann ; Oliver Reiser, Julia Rehbein, Frank-Michael Matysik." Regensburg : Universitätsbibliothek Regensburg, 2018. http://d-nb.info/1185756957/34.

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Bai, Lei. "Cyclodextrins as additives for the synthesis of zirconia-supported metal oxide catalysts for formaldehyde oxidation and extension to the preparation of zirconia." Thesis, Artois, 2013. http://www.theses.fr/2013ARTO0411.

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Les composés organiques volatils comme le formaldéhyde sont des polluants nocifs pour la santé humaine et leur décomposition en composés moins toxiques est fortement étudiée. Ainsi, différents catalyseurs à base d’oxyde métallique permettant une décomposition thermique efficace du formaldéhyde ont été développés. Dans cette optique, les catalyseurs à base d’oxyde métalliques sont souvent présentés comme des catalyseurs prometteurs. Ce travail consiste à préparer des catalyseurs à base de cobalt et/ou de manganèse supportés sur zircone destinés à l’oxydation du formaldéhyde. Les catalyseurs ont
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