Search for dissertations about: "cyclization"

Showing result 6 - 10 of 40 swedish dissertations containing the word cyclization.

  1. 6. Transition-Metal Catalyzed Synthesis of Small- and Medium-Sized Rings Applications toward oxazole synthesis, cycloheptadienes, and natural products

    University dissertation from Department of Chemistry, Lund University

    Author : Henrik von Wachenfeldt; Lund University.; Lunds universitet.; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; catalysis; transition metal; cyclization; cycloaddition; natural product;

    Abstract : This thesis deals with the development of novel methodologies for the synthesis of hetero- and carbocycles enabled by transition metal catalysis. The second chapter of the thesis describes a gold-catalyzed three-component reaction to form a variety of substituted oxazoles from readily available N-benzylimines, terminal alkynes, and acyl chlorides. READ MORE

  2. 7. Metal‐Free Arylations of Oxygen and Nitrogen Nucleophiles : Applications of Diaryliodonium Salts

    University dissertation from Stockholm : Stockholm University

    Author : Elin Stridfeldt; Stockholms universitet.; [2015]
    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

  3. 8. Construction of Five-Membered Heterocycles via Radical Cyclization

    University dissertation from Stockholm : Stockholm University

    Author : Stefan Berlin; Uppsala universitet.; [2001]
    Keywords : ;

    Abstract : .... READ MORE

  4. 9. Development of Peptide Binders Applied to Human CRP, Carbonic Anhydrase (II, IX) and Lysine Demethylase 1

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Jie Yang; Uppsala universitet.; [2017]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; polypeptide conjugates; molecular recognition; peptide cyclization; protein targets;

    Abstract : In this thesis, a polypeptide binder concept is illustrated. By conjugation to a set of sixteen polypeptides, a small binding molecule can evolve into a polypeptide binder with increased affinity and selectivity. READ MORE

  5. 10. Carbon-Carbon Bond Formation via Radical Cyclization and Transition Metal Catalysis

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Puneet Srivastava; Uppsala universitet.; [2010]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Radical cyclizations; transition metal catalysis; NATURAL SCIENCES Chemistry; NATURVETENSKAP Kemi; Chemistry with specialization in Organic Chemistry; Kemi med inriktning mot organisk kemi;

    Abstract : Free radical cyclization methodology has been used extensively in synthesis for manipulation of complex molecules such as alkaloids, terpenes, carbohydrates, peptides and nucleic acids. The methodology has emerged as a result of work by physical organic chemists who determined rate constants for the most common radical reactions used in organic synthesis. READ MORE