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Dissertations / Theses on the topic 'C(sp2)−H Alkylation'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 September 2023

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1

Rousseaux, Sophie. "Palladium-Catalyzed C(sp2)-C(sp3) Bond Formation." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/23058.

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Palladium-catalyzed reactions for carbon-carbon bond formation have had a significant impact on the field of organic chemistry in recent decades. Illustrative is the 2010 Nobel Prize, awarded for “palladium-catalyzed cross couplings in organic synthesis”, and the numerous applications of these transformations in industrial settings. This thesis describes recent developments in C(sp2)-C(sp3) bond formation, focusing on alkane arylation reactions and arylative dearomatization transformations. In the first part, our contributions to the development of intramolecular C(sp3)-H arylation reactions

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2

Nekkanti, Yelha Phani Kumar. "Ruthenium(II) biscarboxylate-Catalyzed C(sp2)-H and C(sp3)-H Functionalizations by Chelation Assistance." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2016. http://hdl.handle.net/11858/00-1735-0000-002B-7CCA-E.

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3

Tirler, Carina. "Carboxylate-Assisted Ruthenium(II)-Catalyzed C-H Alkylation and Alkenylation." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2015. http://hdl.handle.net/11858/00-1735-0000-0023-9666-0.

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4

Crisenza, Giacomo Ercole Martino. "Strategies for selective C-H alkylation and alkenylation of arenes." Thesis, University of Bristol, 2017. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.730852.

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5

Okumura, Shogo. "Studies on Site-selective C-H Alkylation of Arenes with Alkenes." Kyoto University, 2019. http://hdl.handle.net/2433/242514.

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6

Obenhuber, Andreas H. [Verfasser]. "Investigation into the chelate assisted activation of non-strained C(sp2)-C(sp2) single bonds using group 8, 9 and 10 transition metal complexes / Andreas H. Obenhuber." München : Verlag Dr. Hut, 2011. http://d-nb.info/1011441535/34.

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7

Haffemayer, Benjamin. "Development of novel amine-directed Pd(II)-catalysed sp2 and sp3 C-H bond functionalisation processes." Thesis, University of Cambridge, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.607792.

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8

Schaal, Petra [Verfasser]. "Palladiumkatalysierte C(sp2)–H-Funktionalisierung : neue Strategien zur selektiven Synthese disubstituierter planar chiraler [2.2]Paracyclophane / Petra Schaal." Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2013. http://d-nb.info/1042548846/34.

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9

Hofmann, Nora. "Carboxylate-Assisted Ruthenium-Catalyzed C-H Bond meta-Alkylations and Oxidative Annulations." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2013. http://hdl.handle.net/11858/00-1735-0000-0014-D4A4-1.

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10

Wiest, Johannes Markus [Verfasser]. "Synthesis of Pyrroles and their Application in C-H Alkylation Chemistry / Johannes Markus Wiest." München : Verlag Dr. Hut, 2016. http://d-nb.info/112252482X/34.

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11

Zhao, Liqin. "Palladium-catalyzed direct arylation via sp² and sp³ C-H activation of hetero(aromatics) and hydrocarbons for C-C bond formation." Thesis, Rennes 1, 2014. http://www.theses.fr/2014REN1S038/document.

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Au cours de cette thèse, nous nous sommes intéressés à l'activation de liaisons sp² et sp³ C-H catalysée par le palladium pour la préparation d'(hétéro)aryl-aryles et de biaryles. Cette méthode est considérée comme attractive pour l'environnement par rapport aux méthodes classiques, tels que Suzuki, Heck, ou Negishi. Tout d'abord, nous avons décrit que la C2-arylation directe de benzothiophènes peut être effectuée par un catalyseur du palladium en l'absence de ligand phosphine avec une grande sélectivité. Nous avons également démontré qu'il est possible d'activer les positions C2 et C5 de pyrr

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12

Lackner, Sebastian. "Nickel-Catalyzed Secondary Alkylations and Fluoroalkylations via C–H Activation." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2016. http://hdl.handle.net/11858/00-1735-0000-0028-87C8-1.

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13

Nekkanti, Yelha Phani Kumar [Verfasser], Lutz [Akademischer Betreuer] [Gutachter] Ackermann, and Ulf [Gutachter] Diederichsen. "Ruthenium(II) biscarboxylate-Catalyzed C(sp2)-H and C(sp3)-H Functionalizations by Chelation Assistance / Yelha Phani Kumar Nekkanti ; Gutachter: Lutz Ackermann, Ulf Diederichsen ; Betreuer: Lutz Ackermann." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2016. http://d-nb.info/1131875575/34.

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14

Schinkel, Marvin. "Rutheniumkatalysierte Addition von nicht aktivierten C(sp²)–H- und C(sp³)–H-Bindungen an Alkene." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2013. http://hdl.handle.net/11858/00-1735-0000-0015-A380-B.

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15

Ruan, Zhixiong. "C−H Alkylations and Alkynylations Using Ruthenium, Nickel and Manganese Complexes." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2017. http://hdl.handle.net/11858/00-1735-0000-0023-3F33-6.

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16

Saba, Sumbal. "Synthesis of unsymmetrical diorganyl chalcogenides by using arylboronic acids or C (sp2)-H bond functionalization of arenes under greener conditions." reponame:Repositório Institucional da UFSC, 2016. https://repositorio.ufsc.br/xmlui/handle/123456789/168202.

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Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, 2016.<br>Made available in DSpace on 2016-09-20T05:02:32Z (GMT). No. of bitstreams: 1 341356.pdf: 20337282 bytes, checksum: 2c692523891aae34c8c39befe4a17c29 (MD5) Previous issue date: 2016<br>No presente trabalho desenvolveram-se procedimentos robustos, econômicos e sustentável para a síntese de dicalcogentos de organoíla não simétricos usando uma variedade de ácidos borônicos arílicos substituídos e arenos [O- ou N-] subtituídos. Na primeira parte, desen

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17

Sundararaju, Basker. "Cyclisation de dérivés de β-amino acides par métathèse et nouveaux catalyseurs pour l'allylation regiosélective et la fonctionnalisation C-H". Rennes 1, 2011. http://www.theses.fr/2011REN1S148.

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In this doctoral thesis, ruhtenium complexes were examined in three major topics. New Cp*Ru(IV) complexes were developed, which showed excellent regioselectivity in favour of branched products for allylic substitution, especially from unactivated allylic alcohols with leaving groups. Introduction of allyl groups on to selected positions of non-natural β-aminoacids was carried out with [RuCp*] catalysts. Further cyclizations with olefin metathesis ruthenium alkylidene catalysts were efficiently conducted to produce mono-, di- and tetrapeptides featuring a medium to large size cyclic fragment. A

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18

Koeller, Julian. "Development of Photo-Induced C–H Activation by Copper and Ruthenium Catalysis." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2019. http://hdl.handle.net/21.11130/00-1735-0000-0005-129A-9.

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19

Wen, Xin. "The Utilization of Sulfonylhydrazones as New Radical Precursors for Asymmetric Radical C–H Alkylation via Co(II)-Based Metalloradical Catalysis." Thesis, Boston College, 2019. http://hdl.handle.net/2345/bc-ir:108292.

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Thesis advisor: X. Peter Zhang<br>Asymmetric C–H functionalization represents one of the central topics in modern organic chemistry, which allows for the direct installation of functional groups onto ubiquitous C–H bonds in organic molecules. Among numerous elegant strategies, transition metal-catalyzed C–H alkylation with diazo compounds represents one of the most powerful methods for C–C bond formation. Different from Fischer metallocarbene-based C–H insertion reactions, cobalt(II)-based metalloradical catalysis (MRC) is recently proven to be capable of activating acceptor/acceptor diazo com

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20

Tirler, Carina [Verfasser], Lutz [Akademischer Betreuer] Ackermann, and Dietmar [Akademischer Betreuer] Stalke. "Carboxylate-Assisted Ruthenium(II)-Catalyzed C-H Alkylation and Alkenylation / Carina Tirler. Betreuer: Lutz Ackermann. Gutachter: Lutz Ackermann ; Dietmar Stalke." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2015. http://d-nb.info/1078420122/34.

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21

Wang, Yong. "Stereoselective Radical Transformations with In Situ-Generated Aryl and Alkyl Diazomethanes via Co(II)-Based Metalloradical Catalysis." Thesis, Boston College, 2018. http://hdl.handle.net/2345/bc-ir:108246.

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Thesis advisor: X. Peter Zhang<br>Among recent advances in devising different strategies for stereoselective homolytic reactions, metalloradical catalysis (MRC) has emerged as a conceptually new approach for controlling stereoselectivity of radical reactions. As stable metalloradicals, cobalt(II) complexes of D₂-symmetric chiral amidoporphyrins [Co(D₂-Por)] have proven to be effective catalysts for homolytically activating a series of diazo compounds to generate α-Co(III)-alkyl radicals for various C-centered radical transformations with well-confined reactivity and selectivity. Nevertheless,

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22

Chang, Yunghung. "Studies on PNP-Pincer Type Phosphaalkene Complexes of Iridium." 京都大学 (Kyoto University), 2014. http://hdl.handle.net/2433/189364.

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23

Lorusso, Patrizia. "Metal catalysed alkylation of carbonyl compounds with formaldehyde." Thesis, University of St Andrews, 2015. http://hdl.handle.net/10023/7823.

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Formaldehyde is a chemical used widely in the manufacture of building materials. A remarkable example is represented by the Lucite two-step Alpha technology for the large scale production of methyl methacrylate (MMA), the essential building block of all acrylic-based products. Esters and ketones are important intermediates in the manufacture of acrylate esters therefore α-hydroxymethylenation of carbonyl compounds using formaldehyde as a one carbon alkylating agent and subsequent dehydration to the corresponding methylenated derivatives has been explored in the current work. We report a novel

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24

Naturale, Guillaume. "Approches radicalaires pour la fonctionnalisation directe de quinones à visée anticancereuse." Thesis, Bordeaux 1, 2012. http://www.theses.fr/2012BOR14635/document.

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Dans le cadre d’un programme de recherche dédié à la découverte de petites molécules à visée anticancéreuse, nous avons envisagé de concevoir des composés originaux dérivés de quinones. Notre premier objectif a été d’élaborer des mimes non-peptidiques de la protéine Smac, susceptibles de participer à relancer le phénomène d’apoptose, dont la structure est rigidifiée par des contraintes conformationnelles. Par ailleurs, les kinases et les phosphatases, jouant des rôles complémentaires de phosphorylation / déphosphorylation dans le cadre du contrôle du cycle cellulaire notamment, apparaissent au

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25

Deb, Tapash K. "Bioinspired Redox Active Pseudotetrahedral Ni(II) Thiolate and Phenolate Complexes: Synthesis, Characterization, Alkylation Kinetics and Molecular Oxygen Activation." Ohio University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1377256181.

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26

Sarkar, Rahul. "Stereocontrol through Catalytic Enantioselective C(sp2)−H and C(sp3)−H Alkylation: From Bifunctional Organocatalysis to Iridium-Catalysis." Thesis, 2020. https://etd.iisc.ac.in/handle/2005/4762.

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This thesis, entitled “Stereocontrol through Catalytic Enantioselective C(sp2)−H and C(sp3)−H Alkylation: From Bifunctional Organocatalysis to Iridium-Catalysis” primarily deals with the development of various catalytic enantioselective C(sp2)− and C(sp3)− alkyl and allyl bond forming reactions. In Chapter 1, we have described a new and general approach for the enantioselective synthesis of monosubstituted norbornenoquinones based on C(sp2)−H alkylative desymmetrization of meso norbornenoquinones. Catalyzed by a bifunctional tertiary amino(thio)urea derivative, and utilizing air-stable and in

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27

Manna, Madhu Sudan. "Controlling Stereochemistry at the Quaternary Center using Bifunctional (THIO)Urea Catalysis." Thesis, 2015. http://etd.iisc.ac.in/handle/2005/3664.

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The thesis entitled “Controlling Stereochemistry at the Quaternary Center Using Bifunctional (Thio)urea Catalysis” is divided into five chapters. Chapter 1: Catalytic Enantioselective Construction of Quaternary Stereocenters through Direct Vinylogous Michael Addition of Deconjugated Butenolides to Nitroolefins The direct use of deconjugated butenolides in asymmetric C–C bond forming reaction is a powerful but challenging task because of the additional problem of regioselectivity along with the issues of diastereo- and enantioselectivity. In this chapter, a direct asymmetric vinylogous Michae

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28

Manna, Madhu Sudan. "Controlling Stereochemistry at the Quaternary Center using Bifunctional (THIO)Urea Catalysis." Thesis, 2015. http://etd.iisc.ernet.in/2005/3664.

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The thesis entitled “Controlling Stereochemistry at the Quaternary Center Using Bifunctional (Thio)urea Catalysis” is divided into five chapters. Chapter 1: Catalytic Enantioselective Construction of Quaternary Stereocenters through Direct Vinylogous Michael Addition of Deconjugated Butenolides to Nitroolefins The direct use of deconjugated butenolides in asymmetric C–C bond forming reaction is a powerful but challenging task because of the additional problem of regioselectivity along with the issues of diastereo- and enantioselectivity. In this chapter, a direct asymmetric vinylogous Michae

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29

McDonald, Stacey Leigh. "Copper-Catalyzed Electrophilic Amination of sp2 and sp3 C-H Bonds." Diss., 2015. http://hdl.handle.net/10161/9851.

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<p>The wide presence of C-N bonds in biologically and pharmaceutically important compounds continues to drive the development of new C-N bond-forming transformations. Among the different strategies, electrophilic amination is an important synthetic approach for the direct formation of C-N bonds. Compared to electrophilic amination of organometallic reagents, direct amination of C-H bonds will provide a potentially more effective route towards C-N bond formation. Towards this, we proposed an electrophilic amination of C-H bonds via their reactive organometallic surrogate intermediates. Specific

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