Sökning: "organocopper"

Visar resultat 1 - 5 av 9 avhandlingar innehållade ordet organocopper.

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

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

   Sammanfattning : 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. LÄS MER

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

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

   Sammanfattning : 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.,. LÄS MER

4. 3. Homoleptic Arylcopper Complexes

   Författare :Henrik Eriksson; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; cocrystallisation; Grignard; organocopper; bromide; thienyl; mesityl; crystal structure; synthesis; copper I ; arylcopper;

   Sammanfattning : New arylcopper complexes have been synthesised and characterised structurally. The reaction between the Grignard reagent (viph)MgBr (viph = ortho-vinylphenyl) and CuCl has been studied and two unstable mixed aryl/halide intermediates, [Mg(THF)6][Cu5(viph)2Br4]2.THF and [Mg(THF)5Cl][Cu5(viph)4Br2]. LÄS MER

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

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

   Sammanfattning : .... LÄS MER

7. 5. Mechanistic Studies of Organocopper Chemistry by NMR Spectroscopy: Conjugate Additions to Alkynes and Alkenes

   Författare :Karolina Nilsson; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; cyanocuprate; organocopper reagents; ynones; lithium dimethylcuprate; 13C and 15N NMR spectroscopy; pi-complexes; mechanism; enoates; 6Li; 1H-HOESY; ynoates; conjugate addition;

   Sammanfattning : This thesis focuses on the mechanisms of organocopper reactions, in particular the reactions with activated alkynes (ynoates and ynones). These reactions are of interest in the formation of new highly functionalized double bonds with control of the stereochemistry. LÄS MER