Sökning: "Transition metal"

Visar resultat 36 - 40 av 631 avhandlingar innehållade orden Transition metal.

  1. 36. Transition Metal Mediated Transformations of Carboranes

    Författare :Ludvig Eriksson; Kalman Szabo; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chemistry; carborane; isoquinoline; PK11195; peripheral bensodiazepine receptor; Cu I Iodide; iodinated carborane; palladium; isotopic exchange; Herrmann’s Catalyst; Heck reaction; Suzuki-Miyaura reaction; cross coupling; arylation; olefination; 125-iodine; radiolabelling; carboraneboronic ester; BNCT; 2-iodo-; Kemi; Chemistry; Kemi; organisk kemi; Organic Chemistry;

    Sammanfattning : This thesis describes the use of copper and palladium to mediate transformations of carboranes, especially p-carborane.1-(1-p-carboranyl)-N-methyl-N-(2-butyl)-3-isoquinolinecarboxamide, a carborane containing analogue of the peripheral benzodiazepine receptor (PBR) ligand PK11195, has been synthesised. LÄS MER

  3. 37. Metal-metal bond between transition and main-group metals : heterobimetallic platinum-thallium cyanide compounds

    Författare :Mikhail Maliarik; KTH; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  4. 38. Magnetic properties of transition metal interfaces

    Författare :Susanne Mirbt; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  5. 39. Transition metal-catalyzed hydrogen transfer processes

    Författare :Oscar Verho; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The first part describes the synthesis of new analogues of Bäckvall’s catalyst with varying electronic properties and their application in the racemization of sec-alcohols. The racemization involves two key steps: (i) β-hydride elimination (dehydrogenation of the alcohol) and (ii) hydride re-addition to the intermediate ketone. LÄS MER

  7. 40. Transition Metal Catalysis for Selective Synthesis and Sustainable Chemistry

    Författare :J. Johan Verendel; Pher G. Andersson; Reko Leino; Uppsala universitet; []
    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