Search for dissertations about: "4-addition"

Showing result 1 - 5 of 9 swedish dissertations containing the word 4-addition.

  2. 1. 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

  4. 2. Iodotrimethylsilane-promoted conjugate addition of monoorganocopper reagents to α,β-unsaturated carbonyl compounds

    Author : Tommy Iliefski; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; conjugate addition; halosilane; 1; organocopper; 4-addition; copper acetylides; iodotrimethylsilane; coppper reagent;

    Abstract : .... READ MORE

  5. 3. Organocopper compounds and iodotrimethylsilane in stereoselective conjugate additions

    Author : Mikael Bergdahl; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; organoccopper; stereoselective; 1.4 addition; TMSI; conjugate addition; iodotrimethylsilane; asymmetric; optical activity; halosilanes; chiral; copper reagerent;

    Abstract : .... READ MORE

  6. 4. Syntheses of functionalized Phe-Gly dipeptidomimetics

    Author : Wei Berts; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmaceutical chemistry; Farmaceutisk kemi; Pharmaceutical chemistry; Farmaceutisk kemi; Organic Pharmaceutical Chemistry; organisk farmaceutisk kemi;

    Abstract : The complete series of Boc-protected C-4 mono- and difluoroallyl Phe-Gly dipeptidomimetics and their corresponding saturated derivatives has been synthesized. A mechanism that rationalizes the formation of the two isomeric allylic mono-fluorides from an allylic alcohol with diethylaminosulfur trifluoride (DAST) has been investigated. READ MORE

  7. 5. Mechanisms and time course of cell death in embryonic nigral tissue and intrastriatal transplants

    Author : Mia Emgård; Neurobiologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; hypothermia; resveratrol; free radicals; ultrastructure; electron microscopy; mesencephalic; transplantation; rat; Parkinson s disease; dopamine; Neurology; neuropsychology; neurophysiology; Neurologi; neuropsykologi; neurofysiologi;

    Abstract : Parkinson’s disease (PD) is the second most common neurodegenerative disorder and severely affects about one in a hundred persons over the age of fifty years. In PD, there is a reduced striatal concentration of the neurotransmittor dopamine, mainly caused by a degeneration of the dopaminergic neurons in the substantia nigra. READ MORE