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Showing result 1 - 5 of 15 swedish dissertations matching the above criteria.

  2. 1. Asymmetric Hydrogenations : Syntheses of Ligands and Expansion of Substrate Scope

    Author : Pradeep Cheruku; Pher Andesson; Jay Siegel; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Catalysis; Asymmetric; Hydrogenations; Reductions; Olefins; Imines; Enol phosphinates; Transition metal; Complexes; Iridium; Enamines; Ruthenium; Ligands; Trifluoromethyl; Diphenylvinylphosphine oxides; Vinyl phosphonates; Chemistry; Kemi;

    Abstract : Asymmetric hydrogenation has emerged as a versatile methodology to obtain a wide range of chiral precursors. This thesis focused on the synthesis of new chiral ligands and the expansion of the substrate scope of asymmetric hydrogenations. READ MORE

  4. 2. Phenyl Trifluoromethyl Sulfone as Diluent in a Grouped ActiNide EXtraction Process

    Author : Jenny Halleröd; Chalmers tekniska högskola; []
    Keywords : Solvent Extraction; FS-13; CyMe4-BTBP and TBP; GANEX;

    Abstract : The demand for electricity and electrical energy is very high both in Sweden and in the other industrialised countries in the world. An upgrade of the nuclear power plants, including recycling of the used nuclear fuel, would make nuclear power a sustainable energy option. Over the years different types of nuclear reactors have been developed. READ MORE

  5. 3. Oxidative Trifluoromethylation and other Functionalization Reactions of Alkenes and Alkynes

    Author : Pär Janson; Kálmán Szabó; Antonio Togni; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; palladium; copper; transition metal; trifluoromethylation; catalysis; acetoxylation; difunctionalization; oxidation; mechanistic study; alkenes; alkynes; quinones; organisk kemi; Organic Chemistry;

    Abstract : This thesis concerns the use of various potent oxidants in organic synthesis. The main focus is directed at selectively introducing trifluoromethyl groups into compounds containing double or triple bonds. All reactions proceed under mild conditions and can in most cases be performed on the bench-top. READ MORE

  6. 4. Structural Determination of Drug Metabolites from Doping Classed Compounds Using Mass Spectrometry

    Author : Annelie Hansson; Mikael Hedeland; Ulf Bondesson; Peter Hemmersbach; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; mass spectrometry; UHPLC-MS MS; doping control; Cunninghamella elegans; selective androgen receptor modulator; SARM; andarine; ostarine; LGD-4033; roxadustat; HIF stabilizer; Analytical Pharmaceutical Chemistry; Analytisk farmaceutisk kemi;

    Abstract : Doping control in equine sports is important for a fair competition, but also to ensure the integrity of the betting system, as well as for animal welfare reasons. To detect the use of illicit compounds, screening for the parent compound is common. However, by using a metabolite as the analytical target instead, the detection time can be prolonged. READ MORE

  7. 5. Development of Catalytic ElectrophilicTrifluoromethylation and Fluorination Methods

    Author : Nadia Ilchenko; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : This thesis is focused on development of new catalytic, electrophilic fluorination and trifluoromethylation methods of alkenes. These reactions were carried out using hypervalent trifluoromethyl and fluoroiodine reagents.The first project involved copper catalyzed oxytrifluoromethylation of terminal alkenes and alkynes. READ MORE