Sökning: "Berit Olofsson"

Visar resultat 6 - 10 av 14 avhandlingar innehållade orden Berit Olofsson.

  1. 6. Conducting Redox Polymers for Electrode Materials : Synthetic Strategies and Electrochemical Properties

    Författare :Xiao Huang; Adolf Gogoll; Martin Sjödin; Maria Strømme; David Mecerreyes; Berit Olofsson; Fredrik Björefors; Tom Lindfors; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Organic electrode material; Energy storage; Conducting redox polymer; Polythiophene; Terephthalate; PEDOT; Chemistry with specialization in Organic Chemistry; Kemi med inriktning mot organisk kemi;

    Sammanfattning : Organic electrode materials represent an intriguing alternative to their inorganic counterparts due to their sustainable and environmental-friendly properties. Their plastic character allows for the realization of light-weight, versatile and disposable devices for energy storage. LÄS MER

  3. 7. Development and Applications of Hypervalent Iodine Compounds : Powerful Arylation and Oxidation Reagents

    Författare :Nazli Jalalian; Berit Olofsson; Viktor V. Zhdankin; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; hypervalent iodine compounds; diaryliodonium salts; oxidation; Koser s reagent; arylation; phenols; diaryl ethers; chemoselectivity; organisk kemi; Organic Chemistry;

    Sammanfattning : The first part of this thesis describes the efficient synthesis of several hypervalent iodine(III) compounds. Electron-rich diaryliodonium salts have been synthesized in a one-pot procedure, employing mCPBA as the oxidant. Both symmetric and unsymmetric diaryliodonium tosylates can be isolated in high yields. LÄS MER

  4. 8. Synthesis and applications of diaryliodonium salts

    Författare :Nazli Jalalian; Berit Olofsson; Luiz F. Jr. Silva; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Organic chemistry; Organisk kemi;

    Sammanfattning : .... LÄS MER

  5. 9. Transition Metal-Free O-, N- and S-Arylations with Diaryliodonium Salts

    Författare :Gabriella Kervefors; Berit Olofsson; Boris Nachtsheim; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Amines; hypervalent iodine; electrophilic arylation; methodology development; total synthesis; organisk kemi; Organic Chemistry;

    Sammanfattning : This thesis concerns the development of metal-free arylation procedures using diaryliodonium salts, a non-toxic and versatile electrophilic arylating reagent, with applications to synthesize biologically relevant targets.The first part describes a transition metal-free formal synthesis of phenoxazine with an O-functionalization of a certain phenol as a key step. LÄS MER

  7. 10. New Reactivity in Diaryliodonium Salt Chemistry

    Författare :Erika Linde; Berit Olofsson; Thomas Wirth; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Organic Chemistry; organisk kemi;

    Sammanfattning : Diaryliodonium salts (Ar2IX) have emerged as versatile multi-purpose reagents with desirable properties such as easy accessibility, low toxicity and applicability under mild and metal-free reaction conditions. Despite displaying broad utility in arylations of both carbon and heteroatom nucleophiles, the overall sustainability of these protocols is compromised by featuring poor atom economy due to the formation of stochiometric iodoarene byproducts. LÄS MER