Search for dissertations about: "alkenes"

Showing result 1 - 5 of 43 swedish dissertations containing the word alkenes.

  1. 1. Thermochemical and Catalytic Upgrading in a Fuel Context Peat, Biomass and Alkenes

    University dissertation from Stockholm : Kemiteknik

    Author : Christina Hörnell; KTH.; [2001]
    Keywords : peat; biomass; liquefaction; tetralin; gasification; pyrolysis; tar-cracking; dolomite; silica; heterogeneous oligomerization; alkenes;

    Abstract : .... READ MORE

  2. 2. Allylic alcohols and aziridines from alkenes : Studies in asymmetric catalysis

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Mikael J. Södergren; Uppsala universitet.; [2000]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chemistry; Enantioselective; allylic alcohols; epoxide rearrangement; lithium amides; desymmetrization; kinetic resolution; allylic oxidation; alkenes; aziridination; Kemi; NATURAL SCIENCES Chemistry; NATURVETENSKAP Kemi; organisk kemi; Organic Chemistry;

    Abstract : The development of methodology for asymmetric catalytic transformation of alkenederivatives is summarized. The studies concern the [a] Cu(I)-catalyzed allylic oxidation,[b] isomerization of epoxides to allyl alcohols, and [c] Cu(I)-catalyzed alkeneaziridination, respectively.[a] The preparation of exo-2-azabicyclo[2.2. READ MORE

  3. 3. Oxidative Trifluoromethylation and other Functionalization Reactions of Alkenes and Alkynes

    University dissertation from Stockholm : Department of Organic Chemistry, Stockholm University

    Author : Pär Janson; Stockholms universitet.; [2014]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; palladium; copper; transition metal; trifluoromethylation; catalysis; acetoxylation; difunctionalization; oxidation; mechanistic study; alkenes; alkynes; quinones; Organic Chemistry; organisk kemi;

    Abstract : This thesis concerns the use of various potent oxidants in organic synthesis. The main focus is directed at selectively introducing trifluoromethyl groups into compounds containing double or triple bonds. All reactions proceed under mild conditions and can in most cases be performed on the bench-top. READ MORE

  4. 4. Asymmetric Hydrogenations of Imines, Vinyl Fluorides, Enol Phosphinates and Other Alkenes Using N,P-Ligated Iridium Complexes

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Jarle Sidney Diesen; Uppsala universitet.; [2008]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Organic chemistry; Catalysis; Asymmetric; Hydrogenations; Reductions; Alkenes; Imines; Vinyl fluorides; Enolphosphinates; Transition metal; Complexes; Iridium; Organisk kemi; MEDICINE Chemistry; MEDICIN Kemi;

    Abstract : The research described in this thesis is directed toward the efficient, enantioselective synthesis of chiral products that have useful functionality. This goal was pursued through catalytic asymmetric hydrogenation, a reaction class that selectively introduces one or two stereocenters into a molecule in an atom-efficient step. READ MORE

  5. 5. Catalytic Asymmetric Ketone and Alkene Reductions Using Transition Metal Complexes

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Klas Källström; Uppsala universitet.; [2006]
    Keywords : Organic chemistry; Catalytic; Asymmetric; Reductions; Ketones; Alkenes; Transition metal; Complexes; Organisk kemi;

    Abstract : This thesis contains seven papers dealing with iridium and ruthenium based catalytic asymmetric reductions, either of ketones into chiral alcohols, or olefins into chiral alkanes. The first part of the thesis describes how we have designed and evaluated new bicyclic ligands containing either N,S or N,N chelating atoms. READ MORE