Academic literature on the topic 'Catalytic C-H'

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Dissertations / Theses on the topic "Catalytic C-H"

1

Leitch, Jamie. "Site selective catalytic C-H functionalisation." Thesis, University of Bath, 2017. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.767559.

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Harnessing site selectivity in C-H functionalisation remains one of the greatest challenges in modern catalysis. In order to differentiate electronically and sterically similar C-H bonds, a variety of pioneering methods have been developed in recent years. One of the key developments is the use of Lewis basic directing groups to selectively direct a metal centre. The results herein report the manipulation of directing group chemistry to allow selective ortho, meta and para C-H functionalisation of arenes. Chapter 1 reports the developments in moving beyond ortho-selectivity in transition metal
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2

Reynolds, William. "Sequential processes involving catalytic C-H functionalisation." Thesis, University of Bath, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.642028.

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The work described herein involves the exploration of sequential reaction processes involving catalytic C-H functionalisations and Pd-catalysed cross-couplings in both batch and continuous-flow operation, in an effort to improve overall reaction efficiencies.
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3

Paterson, Andrew. "Selective catalytic C-H functionalisation for drug discovery." Thesis, University of Bath, 2017. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.720659.

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This thesis details the current methods for meta-selective C-H functionalisation and contains three chapters relating to the area of ruthenium catalysed meta selective functionalisation by σ-activation. The first of which contains a published manuscript entitled “Catalytic meta-selective C-H functionalization to construct quaternary carbon centres” and describes a meta selective tertiary alkylation procedure on 2-phenylpyridine substrates. Key findings from this work provide good evidence for a radical based mechanism and proposes a catalytic cycle involving two distinct roles for the rutheniu
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4

Ingner, Fredric. "Preparation of carbazolyne precursors through catalytic C-H functionalization." Thesis, Uppsala universitet, Organisk kemi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-307497.

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5

Gallardo, Donaire Juan. "Synthesis of phthalides and benzolactones via catalytic C-H functionalization/C-O bond-forming." Doctoral thesis, Universitat Rovira i Virgili, 2014. http://hdl.handle.net/10803/276960.

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El objetivo principal de esta tesis doctoral ha sido la activación de enlaces inertes C-H de forma catalítica para la construcción de enlaces C-O. El primer proyecto desarrollado ha consistido en la funcionalización de enlaces C(sp3)-H para la síntesis directa de phthalides catalizado por Pd, utilizando simples ácidos benzoicos como materiales de partida. Continuando con la misma línea de investigación, el segundo proyecto realizado se ha basado en la utilización de catalizadores simples y de bajo coste de Cu para la funcionalización de enlaces C(sp2)-H/formación de enlaces C-O para la s
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6

Stateman, Leah Marie. "Catalytic Strategies for Remote C-H Functionalization of Alcohols and Amines." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1587554146078308.

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7

Wang, Chang-Sheng. "Selective catalytic C(sp²)–H and C(sp³)–H bond functionalizations for the synthesis of phosphorus and nitrogen containing molecules." Thesis, Rennes 1, 2018. http://www.theses.fr/2018REN1S106/document.

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Dans la thèse de doctorat, nous avons développé une approche efficace pour la modification rapide d'oxydes d'arylphosphines via la fonctionnalisation de liaisons C-H en position ortho du groupement P=O catalysée par le ruthénium (II) en présence des alcènes. Intéressement, l'ajustement du pH du milieu réactionnel permet de contrôler la sélectivité de la réaction à savoir alkylation or oléfination. La réduction des oxydes de phosphines fonctionnalisées permet la formation d'arylphosphines portant un carboxylate flexible. Dans le second objectif, un couplage C(sp3)–H /N-H oxydatif catalysé par l
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8

Gerdes, Gerd. "Catalytic C-H activation of benzene by plantinum(II) : a mechanistic study /." Zürich, 2004. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=15631.

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9

Sankey, Rosalind Fay. "Beyond C-H activation : the preparation of novel heterocycles using catalytic dearomatisation." Thesis, University of Bristol, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.559388.

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The continuous drive for efficient bond forming reactions has led to the emergence of C-H activation methodologies. More specifically, direct arylation reactions are commonly employed in the synthesis of a range of heteroaromatic products. The latter make up a considerable proportion of medicinally important compounds and therefore their rapid and efficient synthesis is paramount. The preparation of carbazoles has been extensively developed within the Bedford group. The expansion of this palladium-catalysed intramolecular direct arylation methodology has been explored with the aim of producing
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10

Khan, Imtiaz. "Enolate-directed catalytic C-H functionalization of 2-aryl-1,3-dicarbonyl compounds." Thesis, University of Nottingham, 2015. http://eprints.nottingham.ac.uk/30261/.

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I) Synthesis of Spiroindenes by Enolate-Directed Ruthenium-Catalyzed Oxidative Annulation of Alkynes with 2-Aryl-1,3-dicarbonyl Compounds The synthesis of carbocycles by the ruthenium-catalyzed oxidative annulation of alkynes with 2-aryl cyclic 1,3-dicarbonyl substrates is described. Proceeding by the functionalization of C(sp3)–H and C(sp2)–H bonds, and the formation of all-carbon quaternary centers, the reactions provide a diverse range of spiroindenes in good yields and high levels of regioselectivity. II) Synthesis of Benzopyrans by Pd(II)- or Ru(II)-Catalyzed C–H Alkenylation of 2-Aryl-3-
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