Search for dissertations about: "nucleophilic aromatic addition"

Showing result 1 - 5 of 8 swedish dissertations containing the words nucleophilic aromatic addition.

  2. 1. Arene Iron Complexes in Organic Synthesis. New Routes to Benzophenones, Diaryl Selenides, Xanthones and Thioxanthones

    Author : J Peter Storm; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Directed remote Metalation; nucleophilic aromatic addition; nucleophilic aromatic substitution; Arene-iron complexes; balanol; Organic chemistry; Organisk kemi;

    Abstract : A multi-step route to unsymmetrically substituted benzophenones based on cationic hapto6-arene-hapto5-cyclopentadienyl iron complexes has been developed. The key features are nucleophilic aromatic substitution reactions performed on hapto6-2-chlorocarbomethoxybenzene-hapto5-cyclopentadienyl iron hexafluorophosphate with phenoxides, followed by intramolecular Friedel-Crafts ring-closure. READ MORE

  4. 2. Perfluroaryl azides : Reactivities, Unique Reactions and their Applications in the Synthesis of Theranostic Agents

    Author : Sheng Xie; Mingdi Yan; Olof Ramström; Stefan Bräse; KTH; []
    Keywords : Click Chemistry; Dipolar Cycloaddition; Enamine; Triazoline; Amidine; Aggregation-induced emission; pure nanodrugs; aryl amide; thioacid azide reaction; nucleophilic aromatic substitution; azide-masked fluorophore; nitrene insertion; Kemi; Chemistry;

    Abstract : The work centersaround perfluoroaryl azides (PFAAs), and theirability to undergo certain fast and robusttransformations. The chemistry was furtherappliedfor biomedical applications.The first section focuses on the azide-aldehyde-amine cycloaddition using PFAAs. READ MORE

  5. 3. Naphthoxylosides Investigations into glycosaminoglycan biosynthesis

    Author : Mårten Jacobsson; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Organisk kemi; proteoglycan; Organic chemistry; nucleophilic aromatic substitution; thioether; glycosaminoglycan; xylosides; naphthoxylosides;

    Abstract : Glycosaminoglycans (GAGs) are members of a family of polysaccharide structures consisting mostly of repeating disaccharide units. Most GAGs are attached to specific serine residues in proteins to form proteoglycans (PGs). READ MORE

  6. 4. Theoretical Investigations of C–O Activation in Biomass

    Author : Pemikar Srifa; Joseph Samec; Supa Hannongbua; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; DFT calculations; global minima hopping; reactive force field; lignin; palladium; nucleophilic substitution; organisk kemi; Organic Chemistry;

    Abstract : This thesis focuses on using computational chemistry approaches to study how biobased molecules interact with both homo- and heterogeneous catalysts. The reaction mechanisms of such transformations have also been studied. READ MORE

  7. 5. Synthesis and evaluation of bicyclic 1,3-diols (BODOLs) as ligands for asymmetric catalysis

    Author : Ian Sarvary; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Organisk kemi; Organic chemistry; yeast reductions; supramolecular chemistry; diethylzinc; computation; structure of Ti-diolates; diol ligands; titanates; asymmetric catalysis; asymmetric synthesis;

    Abstract : Several ligands based upon 2-substituted bicyclic[2.2.2]octane-2,6-diols (BODOLs) were synthesized and evaluated in two catalytic reactions: I) the Ti(IV)-mediated catecholborane asymmetric reduction of prochiral ketones and II) as catalysts in the asymmetric addition of diethylzinc to aromatic aldehydes. READ MORE