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Dissertations / Theses on the topic 'Novel Catalysis'

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Published: 6 September 2023
Last updated: 31 July 2025

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1

Browne, Danielle M. "Novel selenium catalysis." Thesis, Cardiff University, 2008. http://orca.cf.ac.uk/54706/.

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This thesis describes work carried out on catalytic selenium reagents in a range of organic transformations. Four different areas have been investigated and are reported herein. Chapter 2 reports the unsuccessful development into prochiral ligands, where three different chalcogen atoms are incorporated into either a trisubstituted structure or into a crown ether ring. Then reports how these structures could attach to a metal atom and become chiral. A SSe I SeR Chapter 3 describes a range of selenium-based ligands, which has been used in the palladium allylic substitution reaction to see if the
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2

Neate, Peter Gregory Nigel. "Pathways to sustainable catalysis : from novel catalysts to mechanistic understanding." Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/25441.

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Catalysis allows for the controlled formation of new bonds, whilst reducing both time and energy expenditure in the process. Catalysis has traditionally been the realm of precious metals, which have been used to carry out a bewildering array of reactions. However, there is an ever-increasing drive for the development of catalytic methodology employing sustainable and environmentally benign catalysts. Two such candidates are organocatalysis, omitting the need for metals where possible, or the use of iron catalysis. Two key areas to the advancement of the of field catalysis are the identificatio
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3

Mbuvi, Harun M. "Novel catalysis by metalloporphyrins." [Ames, Iowa : Iowa State University], 2007.

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4

Trant, Aoife Geraldine. "Structural and catalytic studies of novel Au/Ni enantioselective catalysts." Thesis, St Andrews, 2008. http://hdl.handle.net/10023/854.

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5

Paliga, James Francis. "Developing Earth-abundant metal-catalysts for hydrofunctionalisation." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/31115.

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The iron-catalysed hydromagnesiation of styrene derivatives has been developed further from previous publications, expanding the electrophile scope to enable the regioselective formation of new carbon-carbon and carbon-heteroatom bonds (Scheme A1). A commercially available pre-catalyst and ligand were used to give an operationally simple procedure that did not require prior synthesis of a catalyst. This work also investigated the hydromagnesiation of dienes, using a screen of ligands commonly used in transition metal catalysis. An investigation into the magnesium-catalysed hydroboration of ole
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6

Burton, Aaron Steven. "Characterization of Novel Functions and Topologies in RNA." PDXScholar, 2010. https://pdxscholar.library.pdx.edu/open_access_etds/363.

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The RNA World hypothesis describes a period of time during the origins of life in which RNA molecules performed all catalysis and were the only form of information storage. A great deal of evidence has been obtained in support of this hypothesis, however a few key demonstrations are lacking. The first demonstration is of a molecule capable of self-replication that could have plausibly arisen from the prebiotic soup. Previously in the Lehman Laboratory, a 198-nucleotide RNA was discovered that could be fragmented into as many as four pieces ranging from 39 - 63 nucleotides in length. When these
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7

Ucyigit, Asli Cemil. "Novel triphosphine ligands for carbonylation catalysis." Thesis, University of Bristol, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.406955.

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8

Frost, Christopher Gregory. "Novel enantiopure ligands for asymmetric catalysis." Thesis, Loughborough University, 1994. https://dspace.lboro.ac.uk/2134/33263.

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The scope of the palladium catalysed allylic substitution reaction is reviewed with particular reference to stereocontrol. The use of enantiopure oxazolines and acetals in asymmetric synthesis is briefly outlined. The work presented is concerned with the design and construction of enantiopure ligands which are able to impart very high levels of enantioselectivity in the aforementioned palladium-catalysed allylic substitution reaction. The ligands exploit the stereochemistry-controlling properties of the oxazoline moiety, whilst incorporating a secondary donor atom. The ligands rely upon an ele
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9

Clarke, Matthew Lee. "Asymmetric catalysis using novel platinum complexes." Thesis, University of Bath, 1999. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299846.

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10

Kim, Kyungduk. "Novel Nanocatalyst for the Selective Hydrogenation of Bio-Oil Model Compounds." Thesis, The University of Sydney, 2016. http://hdl.handle.net/2123/16353.

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This thesis focuses on the understanding the effect of various factors, such as physical structures of metal particles, chemical composition of supports and metal-support interactions, on the catalytic performance of Pd or Pt nanocatalysts for hydrodeoxygenation (HDO) of bio-oil model compounds. The first part of the thesis addressed the alternative catalyst synthesis strategy based on emerging double-flame spray pyrolysis method (FSP), which was able to tune the catalytic properties of nanocatalysts without changing their precursors and chemical compositions during the synthesis. A series o
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11

Williamson, Mark J. "Novel QM/MM Investigations of Enzyme Catalysis." Thesis, Imperial College London, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.486560.

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Enzymes facilitate specific chemical reactions by lowering the Gibbs free energy of activation (AG++), thus increasing the rate of catalysis. It would be advantageous to understand exactly what within the enzyme leads to this lowering ofthe activation energy. This work describes the development ofa protocol for calculating the free energy barrier between two states of an enzyme, or other condensed phase system using computer simulation. The natute of the calculation enables it to be decomposed to reveal which vibrational modes observed in a molecular dynamics simulation are contributing to the
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12

Frew, Jamie J. R. "Novel bulky fluorinated ligands for homogeneous catalysis." Thesis, University of St Andrews, 2008. http://hdl.handle.net/10023/852.

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A series of novel monodentate and bidentate phosphine ligands substituted with bulky tert-butyl and fluorinated aryl groups have been synthesised. Borane protection has proved to be an excellent method for easy synthesis and purification of bidentate ligands in some cases. However, several of the bulky fluorinated ligands do not form stable borane complexes leading to complications in the synthesis and purification of these compounds. By reaction with transition metal platinum and palladium precursors, it was possible to form dichloride complexes from the synthesised ligands, which were charac
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13

Cubbon, Rachel Jane. "Novel nitrogen-phosphorus ligands for asymmetric catalysis." Thesis, University of Sheffield, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.310817.

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14

Maddocks, Suzanne. "Novel polymer supported reagents for asymmetric catalysis." Thesis, Loughborough University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.274897.

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15

Yang, Qi. "Novel Carbon Nanomaterials for Metal Free Catalysis." Thesis, Curtin University, 2019. http://hdl.handle.net/20.500.11937/78305.

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This thesis presents an investigation on synthesis of carbon nanoribbons by edged engineering and the roles of the carbon edges in several catalytic reactions, oxygen reduction reaction, aqueous organic remediation and ethanol selective oxidation. Using edge engineered nanocarbons as the model catalysts, the carbon edges are exclusively proven to be catalytically active. Further, edges significantly benefit the heteroatom incorporation into the carbon lattice, and exhibit superior catalytic activity to basal plane doped sites.
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16

Spalluto, P. "novel chiral chelating diphosphines for asymmetric catalysis." Doctoral thesis, Università degli Studi di Milano, 2008. http://hdl.handle.net/2434/61060.

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17

Gill, Christopher Stephen. "Novel hybrid organic/inorganic single-sited catalysts and supports for fine chemical and pharmaceutical intermediate synthesis." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/28218.

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Thesis (M. S.)--Chemical Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Jones, Christopher; Committee Member: Agrawal, Pradeep; Committee Member: Teja, Amyn; Committee Member: Weck, Marcus; Committee Member: Zhang, John.
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18

Johnston, Eric. "New Tools for Green Catalysis : Studies on a Biomimetic Hybrid Catalyst and a Novel Nanopalladium Catalyst." Doctoral thesis, Stockholms universitet, Institutionen för organisk kemi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-65079.

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The first part of this thesis describes an improved synthetic route to hybrid (hydroquinone-Schiff base)cobalt catalysts. Preparation of the 5-(2,5-hydroxyphenyl)salicylaldehyde building block was improved by altering the protective groups of the hydroquinone (HQ) starting material. Both protection and deprotection could be carried out under mild conditions, resulting in high yields. By optimizing the reaction conditions of the Suzuki cross-coupling, an efficient and inexpensive synthetic route with a good overall yield was developed. The second part describes the use of the hybrid catalyst as
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19

Tulloch, Arran Alexander Dickon. "Novel mixed donor N-Heterocyclic carbene complexes." Thesis, University of Southampton, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249941.

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20

Lu, Xun. "Exploration of novel carbon(II) and carbon(0) catalyst systems for organic synthesis." Thesis, University of Edinburgh, 2016. http://hdl.handle.net/1842/22939.

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This PhD thesis is focused on the development of novel carbon(II) and carbon(0) catalysis for organic synthesis. More specifically, the major objective has been to explore and design non-toxic and effective catalysts based on: an unusual Bertrand carbene type, a so-called bis(dialkylamino)cyclopropenylidene (BAC), and the carbodicarbene (CDC) framework; the central carbon atom in these molecules is in the formal low-oxidation state ‘+II’ and ‘0’, respectively. These species may be used in base catalysis or as ligands in metal catalysis, and in the context of frustrated Lewis pair (FLP) or dual
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21

Aydin, Juhanes. "Novel Pincer Complex-Catalyzed Transformations : Including Asymmetric Catalysis." Doctoral thesis, Stockholms universitet, Institutionen för organisk kemi, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-8524.

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This thesis is focused on the development of new pincer complex-catalyzed transformations. Optimization of the catalytic properties (fine-tuning) was directed to increase the catalytic activity as well as the chemo-, stereo- and enantioselectivity of the complexes. This was achieved by varying the heteroatoms in the terdentate pincer ligand, by changing the electronic properties of the coordinated aryl moiety and by implementing chiral functionalities in the pincer complexes. In the cross-coupling reaction of vinyl epoxides and aziridines with organoboronic acids the chemoselectivity of the re
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22

James, Daniel Stuart. "Novel nitrogen-sulfur chelate ligands for asymmetric catalysis." Thesis, University of Sheffield, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.287727.

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23

Wixey, James S. "Novel calcium complexes applied to intramolecular hydroamination catalysis." Thesis, Cardiff University, 2012. http://orca.cf.ac.uk/37858/.

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This thesis discusses the synthesis, characterisation, and reactivity studies of a range of new chiral calcium complexes supported by various polydentate N-donor ligands and their suitability as catalysts for intramolecular hydroamination. Chapter One outlines the case for developing organocalcium complexes, including a general overview of their current application to a variety of heterofunctionalisation reactions. Chapter Two introduces the chiral ethylene diamines which are extensively used as calcium supporting ligands and later as precursors for the synthesis of bisimidazoline and potentia
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24

Schettini, Rosaria. "Novel macrocyclic systems in asymmetric phase-transfer catalysis." Doctoral thesis, Universita degli studi di Salerno, 2017. http://hdl.handle.net/10556/2422.

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2014 - 2015<br>In the great realm of organic synthesis, phase-transfer catalysis (PTC) is a well recognized methodology which plays a key role both in industry and academia research. This process involves reactions that take place between reagents which are located in different phases, for example an inorganic water-soluble reagent and a substrate soluble in the organic phase. Considering the well-defined advantages of asymmetric phase-transfer catalysis as a powerful method for organic synthesis, the aim of this research project is to introduce novel macrocycle systems as new and efficient ca
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25

Zhao, Jinhui. "Novel Nano-catalysts for Sustainable Processes." Thesis, The University of Sydney, 2019. https://hdl.handle.net/2123/21523.

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The key aim of this thesis was to develop suitable catalysts for sustainable processes and investigate the potential reaction mechanism. Characterizations were conducted to investigate the morphology and properties of the synthesized catalysts. The first part of this thesis is employing synthesized Au, Pt and AuPt loaded N-doped mesoporous carbon nanosphere catalysts for the photocatalytic oxidation of alcohols. Several characterizations and finite-difference time-domain (FDTD) simulation were conducted to study the intrinsic properties of the catalysts. AuPt bimetallic catalysts performed ove
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26

Veighy, Clifford Robert. "Novel cyclopentadienyl transition metal complexes." Thesis, University of Southampton, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327366.

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27

Prechtl, Martin H. G. "Novel Ruthenium Dihydrogen Complexes and their Application in Catalysis." Doctoral thesis, Duisburg ; Köln : WiKu, 2007. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=016472431&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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28

Oxford, Philip James. "Novel ferrocenyl ligands and their potential applications in catalysis." Thesis, Imperial College London, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.406501.

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29

Czauderna, Christine F. "Novel chiral wide bite angle ligands for asymmetric catalysis." Thesis, University of St Andrews, 2013. http://hdl.handle.net/10023/3670.

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Achiral wide bite angle ligands have been shown to be highly active and to induce excellent chemo- and regioselectivities in many homogeneously catalyzed reactions. However, only a few examples of chiral wide bite angle ligands are known so far. A diphenyl ether backbone was selected to allow maximum synthetic versatility and potential for a modular approach to design and synthesize such chiral diphosphorus ligands. Three synthetic strategies have been explored in this thesis: i) introduction of chiral substituents in the ligand backbone, ii) the use of P-stereogenic donor atoms and iii) the s
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30

Prechtl, Martin H. G. "Novel Ruthenium Dihydrogen Complexes and their Application in Catalysis." Doctoral thesis, Duisburg ; Köln : WiKu, 2007. http://hdl.handle.net/10362/48650.

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Tese arquivada ao abrigo da portaria nº 227/2017 de 25 julho.<br>This research study expatiate upon the synthesis and characterisation of new nonclassical ruthenium hydride complexes bearing pincer ligands and their application in catalysis for CHactivation (H/D-exchange), hydrogen transfer processes and fixation of small molecules like N2 and CO2.
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31

Malinge, Jeremy. "Novel synthesis of heterocyclic aromatic rings via gold catalysis." [Gainesville, Fla.] : University of Florida, 2009. http://purl.fcla.edu/fcla/etd/UFE0024826.

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32

Stanley, Jessica. "Novel applications of catalysis for green and sustainable chemistry." Thesis, The University of Sydney, 2014. http://hdl.handle.net/2123/12679.

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This thesis examines fundamental studies of catalysts for more sustainable processes, addressing three particular challenges: (1) Developing sulfur resistant catalysts that have potential applications in the processing of biomass for the production of liquid transportation fuels. (2) Reducing energy requirements and increasing the catalyst ease-of-use (especially water tolerance) for the hydrogenation of aromatics, particularly for the safe and feasible storage of hydrogen using the reversible toluene/methylcyclohexane couple. (3) Catalytically converting models of lignin building blocks as a
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33

Stanley, Jessica Nicole Gonzalo <1987&gt. "Novel applications of catalysis for green and sustainable chemistry." Doctoral thesis, Università Ca' Foscari Venezia, 2014. http://hdl.handle.net/10579/5655.

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This thesis examines fundamental studies of catalysts for more sustainable processes, addressing three particular challenges: (1) Developing sulfur resistant catalysts that have potential applications in the processing of biomass for the production of liquid transportation fuels. (2) Reducing energy requirements and increasing the catalyst ease-of-use (especially water tolerance) for the hydrogenation of aromatics, particularly for the safe and feasible storage of hydrogen using the reversible toluene/methylcyclohexane couple. (3) Catalytically converting models of lignin building blocks a
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34

Dalla, Valle Chiara. "Novel mesoporous polymers and their application in heterogeneous catalysis." Doctoral thesis, Università degli studi di Padova, 2017. http://hdl.handle.net/11577/3423247.

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The scope of the PhD project is the investigation of acid and Palladium catalysts based on commercially available styrenic resins (both macroreticular and gel type) and a mesoporous poly-divinylbenzene (pDVB) and their application to target technologically relevant reactions, such as the esterification of stearic acid with methanol in sunflower oil and the direct synthesis of H2O2. In particular, the acid catalysts where produced by sulfonation with concentrated sulfuric acid, while the metal catalysts were prepared by TCS (Template Controlled Synthesis) approach, using the sulfonic groups to
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35

Gasperini, Danila. "Design and study of novel gold complexes for efficient catalytic process towards the activation of alkynes." Thesis, University of St Andrews, 2018. http://hdl.handle.net/10023/14247.

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Gold has emerged as valuable tool for chemists. The physico-chemical properties of the metal centre make it exceptionally prone to activate multiple bonds, such as alkynes and alkenes. Thus, its utility in catalysis has been exploited together with the synthesis of suitable catalysts to allow new, efficient transformations, and the understanding of their intrinsic mechanisms. Reported in this thesis are efforts to this goal, such as the design and study of new Au(I) and Au(III) complexes towards functionalisation of alkynes. The development of new catalytic systems is tackled in Chapter 2. An
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36

Coleman, Charlotte. "Novel phosphasalen ligands for the ring-opening polymerisation of lactones." Thesis, University of Oxford, 2017. https://ora.ox.ac.uk/objects/uuid:9471beb5-2a91-408c-a0f3-2028fe52d0d1.

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Bio-derived polymers offer a sustainable alternative to petroleum-derived polymers. One such polymer, polylactide (PLA) is synthesised from the ring-opening polymerisation (ROP) of rac-lactide (rac-LA). The monomer contains two stereocentres which gives a range of tacticities. The isotactic ROP of rac-LA yields the most desirable polymer properties (physical and mechanical properties) and is quantified using a P<sub>i</sub> (probability of isotactic enchainment) value. This thesis investigates tri- and tetradentate ligands coordinated to zinc(II), aluminium(III) and indium(III) to understand t
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37

Zhang, Jiuqing. "Palladium-Imidazolium Carbene Catalyzed Heck Coupling Reactions and Synthesis of a Novel Class of Fluoroanthracenylmethyl PTC Catalysts." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd1075.pdf.

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38

Ting, Richard. "Novel catalysis, photocaging, and positron emission tomography through bioconjugate chemistry." Thesis, University of British Columbia, 2007. http://hdl.handle.net/2429/7530.

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This thesis is comprised of three projects that serve to address current topics in the field of bioorganic chemistry. Chapter 1 describes the emulation of enzyme catalysis through the kinetic analysis of the DNAzyme 9₂₅-11t, a combinatorially selected RNase A mimic utilizing imiclazole and amine groups hybridized to DNA. The rate constants measured for this system are the largest to date for M²⁺ -independent self cleavage (0.020 min⁻¹), trans cleavage (0.28 ± 0.02 min⁻¹), and multiple turnover (0.030 ± 0.002 min⁻¹) by a biomimetic system at physiological ionic strength and pH. These constants
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39

Teasdale, Christopher William Thomas. "Novel N-heterocyclic carbene ligands for use in supported catalysis." Thesis, Durham University, 2005. http://etheses.dur.ac.uk/2953/.

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Ligands involving CNC structures have been of intense interest in research. With an aim to investigating this area, a modular synthesis was developed using condensation reactions between a base unit of 2,6-dichloroisonicotinic acid and N-alkyl imidazoles toprovide a range of 2,6-bis(imidazolium) salts. From this point several methods wereavailable to incorporate an active metal centre, however, state of the art microwaveaccelerated synthesis was found to be the most successful technique in forming the tridentate palladium complexes. Several strategies were investigated to attach these complexe
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40

Cleghorn, Laura Ann Tuton. "Pd/In bimetallic catalysis : additive effects and novel heterocyclic synthesis." Thesis, University of Leeds, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.423583.

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41

Bulpitt, Colin David Alan. "Novel gas sensors and catalysis based on tin oxide materials." Thesis, University of Reading, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.339975.

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42

Caumel, Prakashanand. "Synthesis of novel surfactants and their use in asymetric catalysis." Thesis, University College London (University of London), 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.397566.

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43

Hardacre, Christopher. "Surface chemistry and catalysis of novel Pt/CeO←2 systems." Thesis, University of Cambridge, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282862.

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Pritchard-Smith, Helen Deborah. "Novel bis(diphenylphosphino)amine ligands and their application in catalysis." Thesis, University of Bristol, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.681562.

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This thesis describes the synthesis and catalytic testing of new bis(diphenylphosphino)amine 'PNP' ligands for use in chromium catalysed trimerisation, rhodium catalysed asymmetric hydrogenation and palladium catalysed telomerisation. Chapter 1 presents an overview of catalysis with particular emphasis on the importance of ligand design, homogeneous and heterogeneous asymmetric catalysis, oligomerisation, concluding with future prospects . Chapter 2 investigates the application of bis(diarylphosphino)amine ligands in telomerisation catalysis, comparison of PNP ligands with the benchmark ligand
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45

Elliott, Mark Christopher. "Transition metal catalysis : application to the synthesis of novel heterocycles." Thesis, Loughborough University, 1994. https://dspace.lboro.ac.uk/2134/13422.

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46

Qin, Bo. "Development of novel low-oxidation state main group catalysis : gallium & aluminium." Thesis, University of Edinburgh, 2016. http://hdl.handle.net/1842/21997.

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This PhD thesis is focused on the development of novel catalysis with low-oxidation main group species, mainly based on the group 13 element gallium, a relatively abundant, inexpensive, and low-toxic metal. Gallium in its stable high-oxidation state ‘+III’ is a commonly used Lewis acid catalyst in organic synthesis. In contrast, gallium in its less stable low-oxidation state ‘+I’ is under-explored, but may display both acceptor and donor properties at a single site (ambiphilicity). Based on the hypothesis that potentially ambiphilic gallium(I) –oxidatively generated in situ from gallium(0) usi
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47

Leone, Matteo. "Development of novel synthetic methodologies in photocatalysis for the preparation of (a)chiral amine derivatives." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASF021.

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La lumière visible, reconnue pour être une source d'énergie abondante et économique, est devenue récemment un élément crucial dans l'avancement des processus chimiques catalytiques durables. Les importantes contributions de la communauté scientifique ont mis en lumière un large éventail de transformations, comme décrit dans le premier chapitre. Malgré les diverses applications synthétiques développées à ce jour, la réalisation de réactions photocatalysées de manière asymétrique demeure un défi considérable. Dans ce contexte, nous visons non seulement à développer de nouvelles méthodologies dur
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48

Ewbank, Jessica Lee. "Rational synthesis of novel reforming catalysts." Diss., Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/54850.

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Biomass gasification offers the chance to produce carbon neutral, renewable fuels. One of the main problems facing the commercialization of biomass gasification technology is the presence of large quantities of methane and carbon dioxide in the biogas. Catalytic reforming of these wastes allows for effective utilization of biomass derived syngas. In most reforming studies, impregnation methods are the primary synthesis technique. Impregnation methods often lead to poor dispersion and are un-reproducible from batch to batch. In the development of a novel catalyst for reforming applications, ano
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49

Greenwood, John. "Investigations into surface-confined covalent organic frameworks : towards developing novel enantioselective heterogeneous catalysts." Thesis, University of St Andrews, 2013. http://hdl.handle.net/10023/4293.

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There is an increasing necessity for the pharmaceutical industry to develop enantiomerically pure drugs. Up till now, production of enantiomerically pure molecules has been provided by harvesting them from plants or utilising homogeneous catalysis and biocatalysis. None of these methods are efficient means of production, and attention is now being directed towards heterogeneous enantioselective catalysis as the preferred technique. This is on account of the high product yield and ease of separation of catalyst from the reaction mixture. Over the past few decades, a great deal of research has b
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50

Conti, Riccardo. "Synthesis of novel N-Heterocyclic Carbenes for chiral complexes and catalysis." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/13374/.

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The aim of my training period has been the synthesis of new chiral N-heterocyclic carbene precursors starting from camphoric diacid and the employment of imidazolium salts derived NHC as linker to dendrimers supports for organometallic catalysis. New chiral ligands are needed to develop new catalytic systems for enantioselective transformations. The new type of ligand described was developed starting from camphoric diacid, a cheap chiral molecule, following different synthetic strategies. Asymmetric functionalized chiral NHCs are readily available by methods developed and two of the precursors
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