Search for dissertations about: "Allylsilanes"

Showing result 1 - 5 of 7 swedish dissertations containing the word Allylsilanes.

  2. 1. Stereoselective Nucleophilic Additions to α-Amino Aldehydes: Application to Natural Product Synthesis

    Author : Per Restorp; Peter Somfai; Timothy J. Donohoe; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Stereoselective synthesis; Substrate-control; α-Amino aldehydes; Mukaiyama aldol; Allylsilanes; [3 2]-Annulation; -Alexine; DGDP; Vinyl epoxides; Regioselectivity; Alkyne nucleophiles; Organic chemistry; Organisk kemi;

    Abstract : This thesis deals with the development and application of new synthetic methodology for stereo- or regioselective construction of carbon-carbon bonds in organic synthesis. The first part of this thesis describes the development of a divergent protocol for stereoselective synthesis of chiral aminodiols by employing Mukaiyama aldol additions to syn- and anti-α-amino-β-silyloxy aldehydes. READ MORE

  4. 2. Aspects on the Regio and Stereo Selectivity in the Hydrolsilylation of 1,3-Dienes

    Author : Magnus Gustafsson; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Metallorganisk kemi; Organometallic chemistry; Organisk kemi; Organic chemistry; Lewis acid; electrophilic ring closure; asymmetric hydrosilylation; reaction conditions; isoprene; regioselectivity; oxygen; Wilkinsons catalyst; 15N-1H-HMQC; 31P; heterobidentate ligands; catalyst; palladium; epoxy-allylsilanes; rhodium complexes; dienes;

    Abstract : This thesis is a summary of four papers concerning various aspects on the transition metal catalysed hydrosilylation of 1,3-dienes. The hydrosilylation reaction is formally an addition of a hydrosilane to an unsaturated system and depending on the reaction conditions, control of stereo-, regio-, and chemo-selectivity can be achieved. READ MORE

  5. 3. Application of π-allylpalladium chemistry to the synthesis and transformation of allylsilanes

    Author : István Macsári; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE

  6. 4. Employment of Palladium Pincer Complex Catalysts and Lewis Acids for Synthesis and Transformation of Organometallic Compounds

    Author : Johan Kjellgren; Kálmán J. Szabó; Gerard van Koten; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chemistry; Kemi;

    Abstract : This thesis is mainly focused on the development of new palladium catalyzed transformations using so-called “pincer” complexes. These complexes were applied as catalysts in two important areas of organometallic chemistry: substitution of propargylic substrates by dimetallic reagents; and allylation of aldehydes and imines by allylstannanes. READ MORE

  7. 5. Stereo- and enantioselective synthesis using palladium, ruthenium and enzyme catalysis

    Author : Anders Persson; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chemistry; Kemi; Chemistry; Kemi; organisk kemi; Organic Chemistry;

    Abstract : In this thesis the use of palladium and ruthenium, with the latter in combination with enzymes, as selective catalysts in the transformation of organic substrates is discussed. The thesis is divided into two parts. READ MORE