Sökning: "Enantiomeric Amines"

Visar resultat 6 - 8 av 8 avhandlingar innehållade orden Enantiomeric Amines.

  1. 6. Synthesis and Applications of P-Chirogenic and Axially Chiral P,N-Phosphines as Ligands and Organocatalyst

    Författare :Kristian Andersson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; phosphoramidite; organocatalysis; aminophosphine; Nicholas reaction; asymmetric synthesis; phosphine; asymmetric hydrogenation; modular synthesis; P-chirogenic;

    Sammanfattning : This thesis deals with the enantioselective synthesis of chiral mixed phosphorous/nitrogen compounds and some of their applications in asymmetric synthesis. For the most part, the compounds are P-chirogenic, with the chirality centered on the phosphorous atom. The last part of the thesis deals with axially chiral phosphoramidites. LÄS MER

  3. 7. Chiral Lithium N,P-amide Complexes. Synthesis, Applications and Structural Studies by NMR and DFT

    Författare :Petra Rönnholm; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; 6Li NMR; Asymmetric synthesis; N; P-ligands; DFT; Molecular mechanics;

    Sammanfattning : Enantiospecific synthesis reactions are of intense interest, owing to the increasing request for enantiopure compounds in both research and industry. Lithium amides containing a secondary chelating group are a class of powerful ligands for asymmetric addition reactions. LÄS MER

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

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

    Sammanfattning : 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. LÄS MER