Search for dissertations about: "palladium"

Showing result 1 - 5 of 282 swedish dissertations containing the word palladium.

  1. 1. Palladium(II)-Catalyzed Addition Reactions Synthesis of Aryl Amidines and Aryl Ketones

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Jonas Rydfjord; Mats Larhed; Adriaan Minnaard; [2017]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Palladium; Catalysis; Palladium II catalysis; Synthesis; Addition Reactions; Cyanamide; Amidine; Aryl Amidine; Nitrile; Ketone; Aryl Ketone; Carbopalladation; Continuous-flow; Continuous flow; Microwave heating; Farmaceutisk vetenskap; Pharmaceutical Science;

    Abstract : Palladium-catalyzed reactions have become one of the most important tools in modern organic chemistry due to its ability to catalyze the formation of new carbon-carbon bonds.The aim of the work presented in this thesis was to develop new palladium(II)-catalyzed addition reactions. READ MORE

  2. 2. New Methods for the Synthesis of 3-Substituted 1-Indanones A Palladium-Catalyzed Approach

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Anna Arefalk; Anders Hallberg; Mats Larhed; Juan Carlos Carretero; [2005]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Organic chemistry; Heck; palladium; indanone; annulation; microwave heating; triflate; sulfinyl imine; HIV-1 protease inhibitor; Organisk kemi; NATURAL SCIENCES Chemistry Organic chemistry; NATURVETENSKAP Kemi Organisk kemi;

    Abstract : In medicinal chemistry, there is a constant need for new preparative methods, both to make the synthesis process more effective, and to increase the accessibility to a wide variety of compounds. A number of different approaches can be used to attain these goals. READ MORE

  3. 3. Palladium-catalyzed lignin valorization Towards a lignin-based biorefinery

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Maxim Galkin; Joseph Samec; Rafael Luque; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Lignin; Heterogeneous Catalysis; Palladium; Biomass; Depolymerization; Reduction; Oxidation; Biorefinery; Transfer Hydrogenolysis; Organic Chemistry; Organisk kemi;

    Abstract : The work described in this thesis focuses on the cleavage of the β-O-4′ bond, which is the most abundant interunit linkage in the lignin polymer.In the first part, three methods based on palladium catalysis have been developed and their applicability has been verified using lignin model compounds. READ MORE

  4. 4. Palladium(II)-Catalysed Heck and Addition Reactions Exploring Decarboxylative and Desulfitative Processes

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Bobo Skillinghaug; Mats Larhed; Antonio de la Hoz Ayuso; [2016]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Palladium; catalysis; palladium II catalysis; synthesis; Heck; carboxylic acid; sulfinic acid; sodium sulfinate; nitrile; styrene; ketone; aryl ketone; electrospray ionization mass spectrometry; density functional theory; microwave heating; continuous flow; Kemi med inriktning mot organisk kemi; Chemistry with specialization in Organic Chemistry;

    Abstract : Palladium complexes have the ability to catalyse cross-coupling of two organic moieties through the formation of transient metal-carbon bonds, thus bringing them closer to each other to facilitate the formation of a new bond. Palladium-catalysed coupling reactions are one of the most important carbon-carbon forming reactions available to organic chemists and many of these reactions rely on the reactivity of aryl-palladium complexes. READ MORE

  5. 5. Palladium-Catalysed Carbon–Carbon Coupling Reactions Focusing on Microwave Heating, Low Catalyst Concentrations, Aqueous Conditions, Regioselectivity and Medicinal Chemistry Applications

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Riina K Arvela; Mats Larhed; Anders Hallberg; Michael G Organ; [2009]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Suzuki coupling; Heck reaction; palladium; microwave heating; water; vinyl ethregioselective; HIV-1 integrase inhibitor; PHARMACY Pharmaceutical chemistry; FARMACI Farmaceutisk kemi; farmaceutisk biokemi; Pharmaceutical Biochemistry;

    Abstract : It is widely accepted that palladium is one of the most useful catalysts in organic chemistry, and many palladium(0)-catalysed carbon–carbon bond-forming reactions have been developed over the years. In addition, the ever-growing need for more environmentally benign processes in the chemical industry has driven scientists to look for greener options while developing new methodologies for organic synthesis. READ MORE