Search for dissertations about: "heterocyclic chemistry"

Showing result 6 - 10 of 41 swedish dissertations containing the words heterocyclic chemistry.

  1. 6. Aerobic Oxidative N-Heterocyclic Carbene Catalysis via Multistep Electron Transfer - Method Development and Applications

    University dissertation from ; Chalmers tekniska högskola; Gothenburg

    Author : Anton Axelsson; [2017]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; N-heterocyclic carbene; asymmetric synthesis; esterification; glycerol; electron transfer mediator; green chemistry; telescoped reaction; Organocatalysis; aerobic oxidation; dihydropyranone;

    Abstract : Oxidation reactions are ubiquitous in synthetic chemistry, but generally suffer from formation of large amounts of potentially toxic byproducts. Aerial oxygen represents an ideal oxidant since it is inexpensive, non-toxic and only forms water as a byproduct. READ MORE

  2. 7. Aromatic Allylation via Diazotization; Application in synthesis of heterocyclic compounds

    University dissertation from Organic Chemistry, Lund University

    Author : Fredrik Ek; Lunds universitet.; Lund University.; [2003]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Bengamide analogue.; parallel synthesis; trimethylsilyl azide; cycloaddition; imidazole; fused tetrazole derivatives; iodocyclization; benzazepine; tert-butyl nitrite; allylic bromide; aromatic allylation; diazotization; Organic chemistry; Organisk kemi;

    Abstract : Popular Abstract in Swedish I detta doktorandprojekt har ett antal nya syntesmetoder utvecklats och studerats. En stor del av avhandlingen fokuserar kring införandet av en allylisk grupp i aromatiska föreningar. Allylaromatiska substanser är utmärkta startmaterial i syntesen av föreningar avsedda att användas som kontrastmedel för röntgen. READ MORE

  3. 8. Organocatalytic Transformations with N-Heterocyclic Carbenes - An Investigation of Ionic Liquids as NHC Precatalysts and Aerobic Oxidative Esterifications

    University dissertation from Organic Chemistry, Lund University

    Author : Linda Ta; [2016]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; N-heterocyclic carbene; ionic liquid; multi-component reaction; aerobic oxidation; OTHO; Organocatalysis; green chemistry;

    Abstract : The call for more sustainable processes in the chemical society has led to the development of the field of green chemistry. The Twelve Principles of Green Chemistry serve as guidelines for the design of processes. READ MORE

  4. 9. Capillary electroseparations with mass spectrometric detection Nanoparticle-based continuous full filling and applications for complex sample matrices

    University dissertation from Analytical Chemistry, Lund University

    Author : Peter Viberg; Lunds universitet.; Lund University.; [2006]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Analytisk kemi; Analytical chemistry; phthalates; continuous full filling; heterocyclic aromatic amines; pseudostationary phase; capillary electrophoresis; electrokinetic chromatography; capillary electrochromatography; nanoelectrospray; mass spectrometry;

    Abstract : One of the major challenges in analytical chemistry is to find techniques and methods for determinations of low abundance compounds in complex sample matrices. This thesis describes the development of new miniaturised analytical techniques comprising capillary electroseparation combined with mass spectrometric detection. READ MORE

  5. 10. Hit Identification and Hit Expansion in Antituberculosis Drug Discovery Design and Synthesis of Glutamine Synthetase and 1-Deoxy-D-Xylulose-5-Phosphate Reductoisomerase Inhibitors

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Anneli Nordqvist; Uppsala universitet.; [2011]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Tuberculosis; Glutamine synthetase; Imidazo[1; 2-a]pyridine analogues; Focused hierarchical design of experiments; DXR; Fosmidomycin analogues; 1-Deoxy-D-xylulose-5-phosphate reductoisomerase; Cinnamaldehydes; Oxidative Heck reaction; NATURAL SCIENCES Chemistry Organic chemistry Pharmaceutical chemistry; NATURVETENSKAP Kemi Organisk kemi Läkemedelskemi; Medicinal Chemistry; Läkemedelskemi;

    Abstract : Since the discovery of Mycobacterium tuberculosis (Mtb) as the bacterial agent causing tuberculosis, the permanent eradication of this disease has proven challenging. Although a number of drugs exist for the treatment of tuberculosis, 1.7 million people still die every year from this infection. READ MORE