Sökning: "catalysis"

Visar resultat 1 - 5 av 559 avhandlingar innehållade ordet catalysis.

  1. 1. Asymmetric Catalysis Ligand Design and Conformational Studies

    Detta är en avhandling från Stockholm : Kemi

    Författare :Kristina Hallman; [2001]
    Nyckelord :asymmetric catalysis; chiral ligand; oxazolines; conformational study; allylic substitution; polymer-bound ligands; dendritic ligands; crown ether; oxidations; palladacycle;

    Sammanfattning : This thesis deals with the design of ligands for efficientasymmetric catalysis and studies of the conformation of theligands in the catalytically active complexes. All ligandsdeveloped contain chiral oxazoline heterocycles. LÄS MER

  2. 2. Novel Pincer Complex-Catalyzed Transformations Including Asymmetric Catalysis

    Detta är en avhandling från Stockholm : Institutionen för organisk kemi

    Författare :Juhanes Aydin; Kálmán J. Szabó; Oleg V. Ozerov; [2009]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; pincer; palladium; catalysis; chiral; asymmetric; palladium IV; allylation; aldol; aminoacid; C-H functionalization; cross-coupling; homoallylic; heck reaction; tridentate ligand; NATURAL SCIENCES Chemistry; NATURVETENSKAP Kemi; Organic Chemistry; organisk kemi;

    Sammanfattning : This thesis is focused on the development of new pincer complex-catalyzed transformations. Optimization of the catalytic properties (fine-tuning) was directed to increase the catalytic activity as well as the chemo-, stereo- and enantioselectivity of the complexes. LÄS MER

  3. 3. Asymmetric catalysis ligand design and microwave acceleration

    Detta är en avhandling från Stockholm : Kemi

    Författare :Ulf Bremberg; [2000]
    Nyckelord :;

    Sammanfattning : This thesis deals partly with the design and synthesis ofligands for use in asymmetric catalysis, and partly with theapplication of microwave heating on metal-based asymmetriccatalytic reactions.Enantiomerically pure pyridyl alcohols and bipyridylalcohols were synthesized from the chiral pool for future usein asymmetric catalysis. LÄS MER

  4. 4. Transition Metal Catalysis for Selective Synthesis and Sustainable Chemistry

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :J. Johan Verendel; Pher G. Andersson; Reko Leino; [2012]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Catalysis; Transition metals; Asymmetric catalysis; Hydrogenation; Sustainable chemistry; Kemi med inriktning mot organisk kemi; Chemistry with specialization in Organic Chemistry;

    Sammanfattning : This thesis discusses the preparation and use of transition-metal catalysts for selective organic chemical reactions. Specifically, two different matters have been studied; the asymmetric hydrogenation of carbon-carbon double bonds using N,P-ligated iridium catalysts and the metal-catalyzed transfer of small molecules from biomass to synthetic intermediates. LÄS MER

  5. 5. Nanoplasmonic sensing: from biology to catalysis

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Elin Maria Kristina Larsson; [2009]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; hole-mask colloidal lithography; colloidal lithography; nanoring; QCM-D.; quartz crystal microbalance; nanodisk; catalysis; LSPR; Localized Surface Plasmon Resonance; biosensing;

    Sammanfattning : Our continuously increasing concerns about our health, safety, environment and climate has brought about a need for more sophisticated sensors that enable reliable detection of a variety of events. Sensors are today omnipresent in daily life. LÄS MER