Search for dissertations about: "beta-unsaturated"

Showing result 1 - 5 of 6 swedish dissertations containing the word beta-unsaturated.

  2. 1. New Applications of Monoorganocopper/Iodotrimethylsilane Reagents in Conjugate Additions

    Author : Magnus Eriksson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; beta-unsaturated; halosilane; conjugate addition; alpha; copper iodide; copper acetylides; organocopper; iodotrimethylsilane; Claisen rearrangement;

    Abstract : The thesis reports new applications of monoorganocopper compounds, RCu(LiI), and iodotrimethylsilane in conjugate additions. The present investigation demonstrates conjugate addition of alkylcopper compounds and iodotrimethylsilane to reactive .alpha.,. READ MORE

  4. 2. Metal Mediated Synthesis. Synthetic and Mechanistic Investigations of Conjugate Addition and Reductive Amination

    Author : Anders Johansson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; halosilane; all-trans-geranylgeraniol; copper reagent; primary amines; S -geranylcitronellol; iminium salt; alfa; cuprate; beta-unsaturated; lithium iodide; borane dimethyl sulfide complex; reductive amination; conjugate addition;

    Abstract : The thesis is divided into two separate parts, one treating conjugate addition and the other reductive aminations. The first part of the thesis is concerned with organocopper promoted conjugate addition to .alfa.,. READ MORE

  5. 3. Synthetic studies of nitrogen containing heterocycles, particularly pyrazole and benzotriazine derivatives

    Author : Azadeh Nakhai; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Pyrazole; indazole; tetrahydroindazoles; hexahydroindazoles; alpha; beta-unsaturated ketones; dihydropyrazolone; 3; 3 -biindolyl; 3; 3 -biindazolyl; o-azidobenzonitriles; benzotriazine; aryl-triazene;

    Abstract : This thesis will mainly focus on the chemistry of nitrogen containing heterocyclic compounds, particularly pyrazole and benzotriazine and related ring systems to these compounds. The first part includes a short introduction to biologically important compounds as well as a description of reactivity and chemistry of benzo[c]pyrazole (indazole) and its derivatives. READ MORE

  6. 4. Iodotrimethylsilane-Promoted Conjugate Addition of Organocopper Reagents, DDQ oxidation of Arylpropenes and Synthesis of 2-Arylcoumarans

    Author : Tommy Iliefski; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; 2; DDQ; arylcoumaran; cinnamaldehyde; 6-dicyanobenzoquinone; iodotrimethylsilane; copper acetylides; 1; 3-dichloro-5; neolignan; 4-addition; arylpropene; TMSI; organocopper; conjugate addition;

    Abstract : This thesis is divided into three parts: conjugate additions of organocopper reagents, DDQ oxidations of arylpropenes, and synthesis and steric assignment of 2-arylcoumarans. The iodotrimethylsilane(TMSI)-promoted conjugate addition of alkylcopper and copper acetylides to certain a,b-unsaturated carbonyl compounds is investigated. READ MORE

  7. 5. Natural Products from Cameroonian Medicinal Plants

    Author : Apollinaire Tsopmo; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Växtbiokemi; Plant biochemistry; antiplasmodial.; antitrypanosomal; diarylheptanoids; terpenoids; flavonoids; aframodial; Aframomum; Reneilmia cincinnata; Dorstenia; Euphorbia; Lepidobotrys staudtii; Pentadiplandra brazzeanea; Vernonia guineensis; Natural products; Myrica arborea;

    Abstract : Natural product chemistry is a main research area in Cameroon, as well as for the division of Bioorganic Chemistry at Lund Institute of Technology. A review of the results obtained recently with Cameroonian medicinal plants shows that a large number of compounds, many with complex structures, have been isolated and characterised, and the work presented in this thesis is part of this effort. READ MORE