Search for dissertations about: "Transamination"

Showing result 1 - 5 of 12 swedish dissertations containing the word Transamination.

  2. 1. Investigations of New Biomimetic Transamination Systems and Inclusion Complexation with Cyclodextrins

    Author : Anders Hjelmencrantz; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; stereochemis; bicyclooctanes.Transamination; complexation; cyclodextrins; proton transfer; hydride transfer; stereochemistry; Transamination; Organic chemistry; Organisk kemi;

    Abstract : Two new transamination systems are described. The first example is a dibenzo[a,d]- cycloheptene containing system, designed to accomplish a [1,3]-hydride transfer. Several catalysts have been examined for this purpose. tris-Pentafluorophenyl borane was found to be the most efficient catalyst. READ MORE

  4. 2. Biocatalytic transamination with recombinant Saccharomyces cerevisiae: Challenges and opportunities

    Author : Nora Weber; Teknisk mikrobiologi; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Saccharomyces cerevisiae; transamination; whole-cell biocatalysis; pyruvate; PLP; thiamine; reduction;

    Abstract : Chiral building blocks are important molecules for synthesis of fine chemicals and pharmaceuticals. Biocatalysis has gained in relevance over traditional organic methods for synthesis of chiral compounds, as reactions can be performed at high enantio-selectivity and purity with environmentally friendly, simple, and cheap methods. READ MORE

  5. 3. Catalysis in Dynamic Systems: Control within Molecular Reaction Networks

    Author : Fredrik Schaufelberger; Olof Ramström; Leonard Prins; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; systems chemistry; dynamic covalent chemistry; catalyst screening; reaction networks; organocatalysis; imine exchange; combinatorial chemistry; dynamic systemic resolution; feedback; error-correction; Morita-Baylis-Hillman reaction; C-H activation; H-bond catalysis; transamination; Kemi; Chemistry;

    Abstract : Life as we know it is based on complex networks of biochemical reactions that constantly interact within large dynamic systems. The field of systems chemistry uses chemical models to study how reaction networks – and thereby life – function on a molecular level. READ MORE

  6. 4. Amine Transaminases in Biocatalytic Amine Synthesis

    Author : Henrik Land; Per Berglund; Helen C. Hailes; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Amine Transaminase; Biocatalysis; Transamination; Reductive Amination; Enzyme; Enzyme Engineering; Equilibrium Displacement; Screening; Enzyme Stability; Bioteknologi; Biotechnology;

    Abstract : The use of enzymes, nature´s own catalysts, both isolated or as whole cells to perform chemical transformations is called biocatalysis. As a complement to classical chemical catalysis, biocatalysis can be an environmentally friendly and more economical option in the production and synthesis of chemicals. READ MORE

  7. 5. ω-Transaminase in Biocatalysis : Methods, Reactions and Engineering

    Author : Karim Engelmark Cassimjee; Per Berglund; Wofgang Kroutil; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Biocatalysis offers an alternative to classic chemistry by using enzymes, the protein catalysts of Nature, for production of fine chemicals. Evolution has created enzymes capable of catalysis at moderate temperature of a specific reaction in the presence of a plethora of compounds in the aqueous cell environment. READ MORE