Search for dissertations about: "salts"

Showing result 1 - 5 of 299 swedish dissertations containing the word salts.

  2. 1. Iodonium Salts : Preparation, Chemoselectivity and Metal-Catalyzed Applications

    Author : Joel Malmgren; Berit Olofsson; Jérome Waswer; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Diaryliodonium salts; chemoselectivity; heterogeneous catalysis; organisk kemi; Organic Chemistry;

    Abstract : This thesis concerns the preparation and use of diaryliodonium salts. In Project I various unsymmetrical diaryliodonium salts were reacted with three different nucleophiles in order to study the chemoselectivity of the reactions of the salts. READ MORE

  4. 2. Diaryliodonium Salts : Synthesis, Applications and Computational Investigations

    Author : Marcus Reitti; Berit Olofsson; Michael Greaney; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; diaryliodonium salt; hypervalent iodine; density functional theory; aryne; phenol; nitroarene; organisk kemi; Organic Chemistry;

    Abstract : Organic chemists have the ability to create complex organic molecules by connecting molecular building blocks in different ways. To name a few, these molecules are used as medicines, pesticides or in our household electronics, and are therefore crucial to life as we know it. READ MORE

  5. 3. Diaryliodonium Salts : Development of Synthetic Methodologies and α-Arylation of Enolates

    Author : Marcin Bielawski; Berit Olofsson; Antonio Togni; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Hypervalent Iodine Compounds; One-Pot Synthesis; Regiospecific Synthesis; Aromatic Substitution; Aryl Iodides; Arenes; Boronic Acids; Heteroaromatics; Arylations; Reaction Mechanisms; Density Functional Calculations; Large Scale Synthesis; Organic synthesis; Organisk syntes; organisk kemi; Organic Chemistry;

    Abstract : This thesis describes novel reaction protocols for the synthesis of diaryliodonium salts and also provides an insight to the mechanism of α-arylation of carbonyl compounds with diaryliodonium salts.  The first chapter gives a general introduction to the field of hypervalent iodine chemistry, mainly focusing on recent developments and applications of diaryliodonium salts. READ MORE

  6. 4. Metal‐Free Arylations of Oxygen and Nitrogen Nucleophiles : Applications of Diaryliodonium Salts

    Author : Elin Stridfeldt; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; arylation; aryloxyamines; cyclization; diaryliodonium salts; O-aryloximes; sigmatropic rearrangement;

    Abstract : This thesis concerns development of new methods for metal‐free arylations in organic synthesis. The protocols discussed in the thesis are based on a class of hypervalent iodine compounds called diaryliodonium salts. These reagents are known to transfer aryl moieties to suitable nucleophiles. READ MORE

  7. 5. Unsymmetrical Diaryliodonium Salts : Development and Chemoselectivity studies

    Author : Joel Malmgren; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The first part describes a chemoselectivity study on diaryliodonium salts where oxygen, nitrogen and carbon nucleophiles have been arylated. Twelve different unsymmetric phenyl(aryl)iodonium salts were designed with a systematic variation of the steric and electronic properties of the aryl group. READ MORE