Search for dissertations about: "microwave-assisted chemistry"

Showing result 6 - 10 of 36 swedish dissertations containing the words microwave-assisted chemistry.

  2. 6. Design, Synthesis and Evaluation of Catalytic Chalcogenide Antioxidants

    Author : David Shanks; Lars Engman; John C Walton; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Organic chemistry; antioxidant; tellurium; selenium; computational design; homolytic substitution; radical cyclisation; microwave-assisted synthesis; antioxidant regeneration; Organisk kemi; Organic chemistry; Organisk kemi;

    Abstract : This thesis describes the design, synthesis and evaluation of novel chalcogenide antioxidants.A computational model for the prediction of antioxidant properties of chalcogen-containing antioxidants has been developed. READ MORE

  4. 7. From Polysaccharides to Functional Materials for Trace Pharmaceutical Adsorption

    Author : Zhaoxuan Feng; Minna Hakkarainen; Rojas Orlando J; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Chitosan; cellulose; nanographene oxide; carbon spheres; hydrogel; microsphere; adsorbent; pharmaceutical; microwave; spray-drying; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Abstract : The transition to bioeconomy will reduce our dependency on fossil fuels as well as contribute to a more sustainable society. Within this framework, exploitation and development of renewable substitutes to petroleum-based products provides feasible roadmap for the material design. READ MORE

  5. 8. Cyclotides evolve : Studies on their natural distribution, structural diversity, and activity

    Author : Sungkyu Park; Göransson Ulf; Lars Bohlin; Mohamed Marahiel; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; cyclotide; cyclic cystine knot; evolution; peptide synthesis; chemical ligation; QSAR; Viola; Violaceae; phylogeny; Farmakognosi; Pharmacognosy;

    Abstract : The cyclotides are a family of naturally occurring peptides characterized by cyclic cystine knot (CCK) structural motif, which comprises a cyclic head-to-tail backbone featuring six conserved cysteine residues that form three disulfide bonds. This unique structural motif makes cyclotides exceptionally resistant to chemical, thermal and enzymatic degradation. READ MORE

  6. 9. Enols and Allylic Alcohols as Building Blocks in Synthetic Organic Chemistry : Experimental and Theoretical Studies

    Author : Alba Carretero Cerdán; Belén Martín‐Matute; Shu-Li You; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Base catalysis; Ion-pair; Isomerization; MOFs; Hypervalent Iodine III ; DFT; Organic Chemistry; organisk kemi;

    Abstract : The present thesis describes computational and experimental studies used to drive the reactivity of allylic and enol substrates towards new transformations. These synthetic methods give access to a number of organic molecules that may serve as important moieties in synthetic organic chemistry. READ MORE

  7. 10. Synthesis and [3,3]-Sigmatropic Rearrangement of Vinylaziridines

    Author : Ulf Lindström; Torbjörn Frejd; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Organic chemistry; Organisk kemi; Organic Chemistry; organisk kemi;

    Abstract : A general synthetic route from vinylepoxides to vinylaziridines via 1,2-amino alcohols was developed. The 1,2-amino alcohols were obtained from a stereospecific and regioselective aminolysis of vinylepoxides. The synthetic scope of the aminolysis could be expanded by the use of a microwave-assisted protocol. READ MORE