Sökning: "organic S"

Visar resultat 6 - 10 av 361 avhandlingar innehållade orden organic S.

  1. 6. Synthesis of phosphate-containing oligosaccharides corresponding to capsular antigen structures from Haemophilus influenzae

    Författare :Jonas Hansson; J.S Brimacombe; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Organic Chemistry; organisk kemi;

    Sammanfattning : This thesis describes the synthesis of spacer-equipped di- and trimeric oligosaccharide structures corresponding to fragments of the capsular polysaccharides of Haemophilus influenzae types c and f. Both of these polysaccharides are of the teichoic acid type, built up by disaccharide repeating units linked via interglycosidic phosphodiester bonds. LÄS MER

  3. 7. Valorization of low-value lignocellulosic side-streams

    Författare :Daria Lebedeva; Joseph S. M. Samec; Emiel J.M. Hensen; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Lignocellulose; lignin; hemicellulose; hydrodeoxygenation; zeolites; furfural; catalysis; cycloaddition; biomass fractionation; pulping; Organic Chemistry; organisk kemi;

    Sammanfattning : The development of novel pathways for valorizing low-value streams from pulp, forest, and agricultural industries is crucial for realizing a circular bioeconomy and addressing the needs of both platform chemicals and fuels. Utilizing hemicellulose and lignin as biomass-derived feedstocks facilitates the production of sustainable liquid hydrocarbons, with catalytic hydrodeoxygenation being a key process. LÄS MER

  4. 8. Towards Rational Molecularly Imprinted Polymer Design Using Molecular Dynamics-based Strategies

    Författare :Siamak Shoravi; Ian A. Nicholls; Jesper G. Wiklander; Håkan S. Andersson; Chris Allender; Institutionen för kemi och biomedicin (KOB) Linnéuniversitetet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Organic Chemistry; Organisk kemi;

    Sammanfattning : .... LÄS MER

  5. 9. Development of Polyamide Solvent Extraction Reagents for Trivalent Lanthanides

    Författare :Mikhail S Tyumentsev; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Polyamides; Solvent Extraction; Europium; Rare Earth Elements; Lanthanides; Malonamides;

    Sammanfattning : Rare earth elements (REEs), including lanthanides, are critical materials for many industrial technologies. As a result recycling of end-of-life products containing REEs might be beneficial, as this could partially satisfy the growing demands of industry for these elements. LÄS MER

  7. 10. Copper and Palladium-Mediated Transformationsof Allylic and Propargylic Substrates

    Författare :Tony S. N. Zhao; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis is focused on the development of new palladium and copper-mediated reactions for functionalization of alkenes and propargylic alcohol derivatives. We have developed an efficient procedure for the synthesis of allenyl and propargyl boronate from propargylic carbonates and acetates. LÄS MER