Sökning: "Phosphonate"

Visar resultat 1 - 5 av 23 avhandlingar innehållade ordet Phosphonate.

  1. 1. Expanding the H-phosphonate and H-phosphonothioate chemistry towards biologically important phosphate analogs

    Författare :Gaston Lavén; Jacek Stawinski; Wojciech T. Markiewicz; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Phosphonate; phosphonothioate; H-phosphonate; Organic chemistry; Organisk kemi; organisk kemi; Organic Chemistry;

    Sammanfattning : This thesis focuses on chemical transformations of H-phosphonate and H-phosphonothioate and can be divided in two parts. The first part, is devoted to the development of the palladium-catalyzed P-C bond formation. Both mechanistic and synthetic studies of the transformations have been performed. LÄS MER

  3. 2. Towards synthesis of biologically important phosphate analogues : exploring H-phosphonate and C-phosphonate chemistry

    Författare :Annika Kers; Robert Letsinger; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Organic Chemistry; organisk kemi;

    Sammanfattning : This thesis is based on studies directed towards the development of methods for the preparation of phosphorus containing natural products, with the focus on C-phosphonate nucleic acid analogues.Mechanistic studies concerning formation of the phosphorus-carbon bond resulted in development of two efficient protocols for the synthesis of C-phosphonates from the corresponding H-phosphonate derivatives. LÄS MER

  4. 3. Studies on Oxidative Couplings in H-Phosphonate Chemistry

    Författare :Johan Nilsson; Jacek Stawinski; Esther Kuyl-Yeheskiely; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; oxidative coupling; H-phosphonate; H-phosphonothioate; organisk kemi; Organic chemistry; Organisk kemi;

    Sammanfattning : In this thesis oxidative coupling of H-phosphonate and H phosphonothioate diesters with different alcohols and amines are presented. Since the reactions with alcohols previously have been particularly unfavourable due to competing side reactions, a modified protocol leading to high coupling yields of structurally diverse hydroxylic components was developed. LÄS MER

  5. 4. Ruthenium-Manganese Complexes as Model Systems for Artificial Photosynthesis

    Författare :Anh Tran; KTH; []
    Nyckelord :Oligopyridine; bipyridine; terpyridine; ligand synthesis; ruthenium; manganese; dipicolylamine; phenolate ligands; phosphonate; artificial photosynthesis; photosystem II;

    Sammanfattning : .... LÄS MER

  7. 5. Synthetic and structural studies of C-phosphonate DNA

    Författare :Tomas Szabó; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER