Search for dissertations about: "carboxylic acids"

Showing result 16 - 20 of 107 swedish dissertations containing the words carboxylic acids.

  2. 16. C–H and Si–H functionalization using redox-active diazo compounds and decarboxylative coupling

    Author : Rajdip Chowdhury; Abraham Mendoza; Darren Dixon; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; carbenes; radicals; redox-active esters; indoles; carboxylic acids; silanes; photochemistry; Organic Chemistry; organisk kemi;

    Abstract : The work presented in this thesis is based on two basic organic chemistry concepts: carbene catalysis and radical coupling reactions. Diazo compounds in the presence of transition-metal catalysts are known to be excellent reagents for the construction of C–X bonds (X = C, Si, N, O, etc.) under mild conditions. READ MORE

  4. 17. Non Natural Aromatic Amino Acids Applications in cage-construction, metal ion coordination and asymmetric catalysis

    Author : Ruxandra Ionescu; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; diethylzinc additions.; spectroscopy; metal ion coordination; cage-like compounds; Amino acids; C3-symmetry; Organic chemistry; Organisk kemi;

    Abstract : Aromatic non-natural amino acids, the outstanding feature of which was the presence of several arms, were synthesised and their properties investigated. The amino acids were synthesised following a standard procedure starting with a Horner-Wadsworth-Emmons or a Heck reaction, which provided didehydroamino acids. READ MORE

  5. 18. Extractive alkylation of carboxylic acids studied by use of different kinetic systems

    Author : Andreas Furängen; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; PHARMACY; FARMACI;

    Abstract : .... READ MORE

  6. 19. Engineering short-chain carboxylic-acid metabolism in the model microorganism Escherichia coli

    Author : Gustav Sjöberg; Antonius J. A. van Maris; Solange Mussatto; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; metabolic engineering; R -3-hydroxybutyrate; volatile fatty acids; bioprocess design; Escherichia coli; bacterial artificial chromosome; Bioteknologi; Biotechnology;

    Abstract : The ever-increasing concern about carbon dioxide emissions has created an urgent need to develop alternative methods to cheaply and renewably produce materials, chemicals and fuels. The biorefinery is uniquely suited to deliver these products from sustainable biomass. READ MORE

  7. 20. Phase transfer and base catalyzed alkylation of carboxylic acids and alcohols for gas chromatographic determination

    Author : Håkan Brink; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; PHARMACY; FARMACI;

    Abstract : .... READ MORE