Search for dissertations about: "enamine catalysis"

Found 3 swedish dissertations containing the words enamine catalysis.

  1. 1. Dynamic Systems Enzymatic Synthesis, Exchange Reactions and Applications in Materials Science

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Yang Zhang; Olof Ramström; Mihail D. Barboiu; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; constitutional dynamic chemistry; reversible reactions; kinetic resolution; dynamic kinetic resolution; enzyme catalysis; lipase; asymmetric synthesis; racemization; oxazolidinone; organogel; enamine; nitroaldol reaction.;

    Abstract : This thesis is divided into three parts, revolving around the developments of dynamic systems utilized in dynamic kinetic resolution (DKR) and constitutional dynamic chemistry (CDC).The first section gives an introduction to constitutional dynamics, the core concept of this thesis. READ MORE

  2. 2. Development of catalytic enantioselective C-C bond-forming and cascade transformations by merging homogeneous or heterogeneous transition metal catalysis with asymmetric aminocatalysis

    University dissertation from Sundsvall : Mid Sweden University

    Author : Samson Afewerki; Armando Córdova; MICHELANGELO GRUTTADAURIA; [2014]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; asymmetric catalysis; transition metals; aldehydes; heterogeneous catalysis; amino acid; organocatalysis; α-allylation; β-alkylation; dynamic transformations; polysubstituted; carbocycles; spirocyclic oxindoles; all-carbon quaternary stereocenters;

    Abstract : Chiral molecules play a central role in our daily life and in nature, for instance the different enantiomers or diastereomers of a chiral molecule may show completely different biological activity. For this reason, it is a vital goal for synthetic chemists to design selective and efficient methodologies that allow the synthesis of the desired enantiomer. READ MORE

  3. 3. Synthesis of N-Containing Compounds: Development of Methodology and its Application in Total Synthesis

    University dissertation from Printed in Sweden by Media-Tryck, Lund University

    Author : Lu Yu; [2019-08-27]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; a-keto amides; enamine catalysis; pyrrolidine; TEMPO; a-keto thioamides; a-keto amidines; a-amino-b-hydroxy ester; asymmetric transfer hydrogenation; alexine; dynamic kinetic resolution; hydroamination; 1; 2-diamines; enamines; copper;

    Abstract : This thesis aims to develop new synthetic methods and explore the possibilities to apply it in the total synthesis of natural products.Chapter 2 deals with a mild procedure for the synthesis of a-keto amides by a-oxidation of the corresponding aketo amines mediated by pyrrolidine and TEMPO. READ MORE