Sökning: "Organic Chemistry"

Visar resultat 21 - 25 av 146 uppsatser innehållade orden Organic Chemistry.

  1. 21. Effects of Forest Ditch Cleaning on Surface Water Quality

    Master-uppsats, SLU/Dept. of Aquatic Sciences and Assessment

    Författare :Emeli Arvidsson; [2023]
    Nyckelord :Ditch cleaning; forest clear-cut; water quality; water chemistry;

    Sammanfattning : Ditch cleaning (DC) is recommended by authorities to Swedish landowners to maintain forest productivity after forest harvest by lowering groundwater tables of catchment soils. Knowledge regarding the impact of this practice on surface water quality is limited, and results from previous research vary. LÄS MER

  3. 22. Greening peptide chemistry by using NBP as solvent for SPPS

    Master-uppsats, Lunds universitet/Centrum för analys och syntes

    Författare :Andrea Ölander; [2022]
    Nyckelord :SPPS; Green chemistry; Peptide Synthesis; Organic chemistry; Organisk kemi; Chemistry;

    Sammanfattning : The preferred method for synthesising therapeutic peptides today is by Solid-Phase Peptide Synthesis (SPPS). SPPS is a wasteful process, where the main component of the waste is hazardous solvents, i.e., N,N-dimethylformamide (DMF), N-methylpyrrolidone (NMP) or dichloromethane (DCM). LÄS MER

  4. 23. Rare Earth Triflate/Alanine Catalysed Diels-Alder and Michael Reactions in Water and an Alternative Pyrrole Synthesis

    Master-uppsats, Lunds universitet/Centrum för analys och syntes

    Författare :Albin Olsson; [2022]
    Nyckelord :Water; Green Chemistry; Synthesis; Organic Chemistry; Chemistry;

    Sammanfattning : Large amounts of organic solvents are used within the field of chemistry and nearly everything is being discarded and is not reused. A way to reduce the environmental impact that this leads to is to use a safe and natural solvent that is easy to access, like water. LÄS MER

  5. 24. Chemical Kinetic Modeling of the Combustion of NH3/H2 and NH3/syngas Fuel Mixtures Using a Large Amount of Experimental Data

    Master-uppsats, Lunds universitet/Kemiska institutionen

    Författare :Andras Szanthoffer; [2022]
    Nyckelord :Ammonia combustion; Detailed chemical kinetic mechanisms; Quantitative mechanism comparison; Local sensitivity analysis; Chemical Physics; Chemistry;

    Sammanfattning : Nowadays, due to the global climate change, it is extremely important to find alternative fuels to reduce the utilization of fossil fuels and the emission of air pollutants such as carbon dioxide (CO2), hydrocarbon pollutants, and soot. Ammonia (NH3) is a promising carbon free fuel candidate that can store and transport renewable hydrogen (H2) energy. LÄS MER

  7. 25. Exploring Regioselective 5N-acylation of Neuraminic acid

    Master-uppsats, Lunds universitet/Kemiska institutionen

    Författare :Simon Hans Lilje; [2022]
    Nyckelord :acylation; amide; antibacterial drugs; regioselective deprotection; sialic acid; organic chemistry; Chemistry;

    Sammanfattning : In this project, a regioselective method to deprotect and acylate the amide on C5 of sialic acid is explored. Sialic acid is one of the most complex monosaccharides and is an important ligand in many higher organisms in intercellular cell communication. The most prominent example is related to the immune system. LÄS MER