Sökning: "Reaction order"

Visar resultat 26 - 30 av 758 avhandlingar innehållade orden Reaction order.

  1. 26. Transition Metal-Mediated Selective Functionalizations of Bio-Derived Building Blocks

    Författare :Petter Dunås; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; phenols; Heck reaction; microbial arene oxidation; green chemistry; domino reactions; chirality transfer; palladium; metal carbonyl; azulenes; renewable resources; iron;

    Sammanfattning : In order to transition to a more sustainable chemical industry, it is necessary to replace the fossil starting materials that are largely used today with renewable ones. Starting materials available from abundant natural sources, or which can be efficiently produced via a biotransformation, are of high interest in this regard. LÄS MER

  2. 27. Exploiting enzyme promiscuity for rational design

    Författare :Cecilia Branneby; Karl Hult; Alex Zaks; KTH; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Biochemistry; Candida antarctica lipase B; alanine racemase; substrate specificity; reaction specificity; enzyme catalytic promiscuity; Biokemi; Biochemistry; Biokemi;

    Sammanfattning : Enzymes are today well recognized in various industrial applications, being an important component in detergents, and catalysts in the production of agrochemicals, foods, pharmaceuticals, and fine chemicals. Their large use is mainly due to their high selectivity and environmental advantage, compared to traditional catalysts. LÄS MER

  3. 28. Reaction and Diffusion Phenomena in Biomimetic Nanoscale Reactors and Networks

    Författare :Kristin Sott; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; artificial cell; restricted geometries.; enzymatic reactions; micromanipulation; biomimetic; nanotubes; diffusion; Vesicles; networks; liposomes;

    Sammanfattning : Methods for construction of geometrically complex, fully connected surface-immobilized microscopic networks of phospholipid bilayer vesicles (1-50 µm in diameter) interconnected by lipid nanotubes (100-300 nm in diameter), have been developed. The networks have controlled connectivity and are well-defined with regard to the container size, content, angle between nanotube extensions, and nanotube length. LÄS MER

  4. 29. Towards Rational Design of Asymmetric Catalyst for Organometallic and Organocatalytic Reactions

    Författare :Antti Hartikka; Per Arvidsson; Albrecht Berkessel; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Organocatalysis; Transition Metal Complex; Asymmetric; Aldol Reaction; Cyclopropanation; Diels-Alder; Reduction; Conjugate Addition; Organic chemistry; Organisk kemi;

    Sammanfattning : This thesis deals with synthetically modified chiral molecules and their application in asymmetric catalysis. The first part of the thesis describes the use of commercially available chiral diamine ligands in the iridium catalyzed transfer hydrogenation of aromatic ketones. LÄS MER

  5. 30. Computational Modeling of Reaction and Diffusion Processes in Mammalian Cell

    Författare :Qasim Ali Chaudhry; Michael Hanke; Bernt Wennberg; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : PAHs are the reactive toxic chemical compounds which are present as environmental pollutants. These reactive compounds not only diffuse through the membranes of the cell but also partition into the membranes. They react with the DNA of the cell giving rise to toxicity and may cause cancer. LÄS MER