Search for dissertations about: "nitrogen-containing"

Showing result 1 - 5 of 34 swedish dissertations containing the word nitrogen-containing.

  2. 1. Transformations of Nitrosoarenes and Alkynyl Enones : Selective Synthesis of Nitrogen-Containing Compounds

    Author : Angela van der Werf; Nicklas Selander; Gary A. Molander; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; alkynyl enones; catalysis; copper; halogenation; heterocycles; nitrosoarenes; perfluoroalkylation; trifluoromethylation; organisk kemi; Organic Chemistry;

    Abstract : The nitrogen atom plays a unique role in organic chemistry. It is abundantly found in organic materials and is responsible for the activity of many biologically relevant compounds. READ MORE

  4. 2. Synthesis and studies of oxygen and nitrogen containing macrocycles

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

    Abstract : .... READ MORE

  5. 3. Nitrogen-containing products from atmospheric oxidation of volatile organic compounds

    Author : Epameinondas Tsiligiannis; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; VOC; anthropogenic; biogenic; SOA; atmospheric oxidation; organic aerosols; CIMS; FIGAERO; TMB; isoprene; HOM; organonitrates ONs ; NOx; OH; nitrate NO3 ; Go:PAM; SAPHIR;

    Abstract : Atmospheric oxidation of volatile organic compounds (VOC) produces a wide range of oxygenated organic products that lead to formation of secondary organic aerosol (SOA). SOA represents a significant fraction of the tropospheric aerosol that influence climate and human health. READ MORE

  6. 4. Synthetic studies of nitrogen containing heterocycles, particularly pyrazole and benzotriazine derivatives

    Author : Azadeh Nakhai; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Pyrazole; indazole; tetrahydroindazoles; hexahydroindazoles; alpha; beta-unsaturated ketones; dihydropyrazolone; 3; 3 -biindolyl; 3; 3 -biindazolyl; o-azidobenzonitriles; benzotriazine; aryl-triazene;

    Abstract : This thesis will mainly focus on the chemistry of nitrogen containing heterocyclic compounds, particularly pyrazole and benzotriazine and related ring systems to these compounds. The first part includes a short introduction to biologically important compounds as well as a description of reactivity and chemistry of benzo[c]pyrazole (indazole) and its derivatives. READ MORE

  7. 5. Iron-nitrogen containing carbon catalysts for oxygen reduction in fuel cells

    Author : Caroline Janson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; active site; mesoporous carbon; fuel cell; electron paramagnetic resonance; oxygen reduction reaction; cathode catalyst; non-precious metal catalyst;

    Abstract : New solutions to efficiently convert energy are needed to mitigate global climate changes and sustain the needs of the growing population. An energy device with high potential is the proton exchange membrane (PEM) fuel cell. PEM fuel cells can convert chemical energy to electrical energy with extraordinary high conversion efficiency. READ MORE