Search for dissertations about: "heterocyclic chemistry"

Showing result 21 - 25 of 41 swedish dissertations containing the words heterocyclic chemistry.

  1. 21. The GABAA Receptor as Target for Novel Heterocyclic Compounds

    Author : Jakob Nilsson; Lunds universitet.; Lund University.; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Ligands for the benzodiazepine-binding site of the GABAA receptor can belong to structurally diverse classes of compounds including, in spite of the name of the binding site, many non-benzodiazepine structures. The GABAA receptor is a ligand-gated ion channel assembled of five subunits from eight different classes with multiple isoforms. READ MORE

  2. 22. Structural and Antibacterial Properties of Silver(I) Compounds with N-donor Ligands: A Challenge for Medical Applications

    Author : Al-Shimaà A A Massoud; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; X-ray diffraction; silver I compounds; solution chemistry; antibacterial activity;

    Abstract : In this thesis, new silver(I) nitrate compounds with N-donor heterocyclic ligands are described. The structures of the obtained crystalline compounds 1-19 were analysed using X-ray single-crystal diffraction. READ MORE

  3. 23. Studies of Hydrogenations and Isomerizations of Olefins and Alkylations of Amines Using Iridium Catalysts

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Jia-Qi Li; Uppsala universitet.; [2012]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Iridium; Asymmetric; Hydrogenation; Isomerization; Alkylation; Organisk kemi; Organic Chemistry;

    Abstract : This thesis describes three types of reactions that were carried out using iridium catalysts.The first type is the iridium-catalyzed asymmetric hydrogenation of olefins. In paper I, the preparation of a new type of bicyclic thiazole-phosphine based iridium complex was described. READ MORE

  4. 24. Palladium(II)-catalyzed 1,4-oxidations of 1,3-dienes : Development of an asymmetric version and synthetic applications

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Andreas Palmgren; Uppsala universitet.; [1999]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chemistry; Kemi; NATURAL SCIENCES Chemistry; NATURVETENSKAP Kemi; organisk kemi; Organic Chemistry;

    Abstract : In this thesis the development of an asymmetric version and synthetic applications of the Pd(II)-catalyzed 1,4-oxidation of conjugated dienes are described. The thesis is divided into four parts:(i) The first part concerns the design and synthesis of chiral p-benzoquinones as ligands in the Pd(II)-catalyzed 1,4-diacetoxylation. READ MORE

  5. 25. N-Heterocyclic Carbene-Phosphine Iridium Catalyzed Alkylation Reactions and Asymmetric Hydrogenation of Ketones

    University dissertation from Stockholm : Stockholm University

    Author : Sutthichat Kerdphon; Stockholms universitet.; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; C-C coupling reactions; hydrogen transfer; iridium; ketones; methylation;

    Abstract : This thesis is focused on hydrogen transfer reactions using N-heterocyclic carbenephosphine iridium catalysts and is divided in two parts. The first part describes the use of achiral N-heterocyclic carbene-phosphine iridium complexes catalyzing the methylation of ketones and alkylation of amides using alcohols as the electrophile. READ MORE