Sökning: "oxazoline"

Visar resultat 1 - 5 av 10 avhandlingar innehållade ordet oxazoline.

  1. 1. Synthesis of Novel Chiral Bicyclic Ligands and their Application in Iridium-Catalyzed Reactions

    Författare :Anna Trifonova; Pher G. Andersson; Guy Lloyd-Jones; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Organic chemistry; asymmetric catalysis; Diels-Alder reaction; transfer hydrogenation; hydrogenation; amino-oxazoline; phosphine-oxazoline; imine; olefin; Organisk kemi; Organic chemistry; Organisk kemi;

    Sammanfattning : The synthesis of 2-aza-norborane derivatives is presented. The use of these compounds in preparation of Ir catalysts for asymmetric hydrogenations is described. The evaluation and optimization of the catalysts as well as the mechanistic aspects of the catalytic process are discussed. LÄS MER

  3. 2. Chiral Pyridine-Containing Ligands for Asymmetric Catalysis. Synthesis and Applications

    Författare :Fredrik Rahm; KTH; []
    Nyckelord :asymmetric catalysis; chiral ligand; chiral pool; oxazoline; crown ether; ditopic receptor; bipyridine; pyridyl alcohol; modular approach; P; N-ligand; diethylzinc; allylic alkylation;

    Sammanfattning : This thesis deals with the design and syntheses of chiral,enantiopure pyridinecontaining ligands and their applicationsin asymmetric catalyis.Chiral pyridyl pyrrolidine ligands and pyridyl oxazolineligands were synthesized and employed in thepalladium-catalysed allylic alkylation of 1,3-diphenyl-2-propenyl acetate with dimethyl malonate. LÄS MER

  4. 3. Synthesis and study of new oxazoline-based ligands

    Författare :Mélanie Tilliet; Christina Moberg; Vincent Levacher; Jan H. van Maarseveen; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; organic chemistry; Organic chemistry; Organisk kemi;

    Sammanfattning : This thesis deals with the study of oxazoline-based ligands in metal-catalyzed asymmetric reactions. The first part describes the synthesis of six new bifunctinal pyridine-bis(oxazoline) ligands and their applications in asymmetric metal-catalysis. LÄS MER

  5. 4. Asymmetric Catalysis : Ligand Design and Conformational Studies

    Författare :Kristina Hallman; KTH; []
    Nyckelord :asymmetric catalysis; chiral ligand; oxazolines; conformational study; allylic substitution; polymer-bound ligands; dendritic ligands; crown ether; oxidations; palladacycle;

    Sammanfattning : This thesis deals with the design of ligands for efficientasymmetric catalysis and studies of the conformation of theligands in the catalytically active complexes. All ligandsdeveloped contain chiral oxazoline heterocycles. LÄS MER

  7. 5. Synthesis of Oligosaccharides for Interaction Studies with Various Lectins

    Författare :Emiliano Gemma; Stefan Oscarson; Martina Lahmann; Hans Kamerling; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Organic chemistry; Organisk kemi;

    Sammanfattning : In this thesis, the syntheses of oligosaccharides for interaction studies with various lectins are described. The first section reports the syntheses of tetra, tri- and disaccharides corresponding to truncated versions of the glucosylated arm of Glc1Man9(GlcNAc)2, found in the biosynthesis of N-glycans. LÄS MER