Search for dissertations about: "regioselective"

Showing result 11 - 15 of 45 swedish dissertations containing the word regioselective.

  2. 11. Synthetic analogs of sialyl Lewis x

    Author : Ulf Ellervik; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; stereoselective synthesis; regioselective synthesis; lactam analogs; lactone; Selectin; Sialyl Lewis x; SLex; Organic chemistry; Organisk kemi;

    Abstract : The sialyl Lewis x (SLex) tetrasaccharide is the smallest recognizable ligand for selectins. The selectins constitute a vital part of the inflammatory cascade for recruitment of leukocytes to a site of tissue damage or microbial infection. READ MORE

  4. 12. Regioselective intramolecular palladium-catalyzed and radical mediated arylations of cyclic enamidines and enamides

    Author : Lena Ripa; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; PHARMACY; FARMACI;

    Abstract : .... READ MORE

  5. 13. C-H Activation Reactions Mediated by Pd Based Heterogeneous Catalysts : Regioselective Formation of C-O and C-X Bonds

    Author : Maitham Majeed; Centrum för analys och syntes; []
    Keywords : C-H Activation; N-heterocyclic carbenes; palladium; polymer supported Pd II ; undirected acetoxylation; directed halogenation; continuous flow; reduced graphene oxide supported Pd II ;

    Abstract : New classes of N-heterocyclic carbene-palladium(II) complexes containing either a vinyl group in different positions or an anthracene tag in the backbone of the N-heterocycle were synthesized and fully characterized. The vinyl based complexes were copolymerized with divinylbenzene to fabricate robust polymer-supported NHC-Pd(II) systems, while the anthracene based complexes were π-stacked onto the surface of reduced graphene oxide (rGO) producing immobilized catalysts with interesting features. READ MORE

  6. 14. Synthesis of oligosaccharides for structural, conformational and molecular recognition investigations

    Author : Peter Söderman; Inge Lundt; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Organic Chemistry; organisk kemi;

    Abstract : Carbohydrates are involved cell-cell interaction. Synthesis of small and medium sized oligosaccharides is important to gain more understanding about the their physical properties that are crucial for their action in molecular recognition events. READ MORE

  7. 15. Synthesis of lactosamine-containing carbohydrate structures and development for their easy assembly and conjugation

    Author : Therese Buskas; Robert Madsen; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Organic Chemistry; organisk kemi;

    Abstract : This thesis is based on four publications. The first chapter describes preparation of anomerically pure thioethyl-, thiophenyl-, and n-pentenyl 2-azido-2-deoxy glycosyl building blocks from easily accessible per-acetylated glycosamines. READ MORE