Search for dissertations about: "nucleophilic substitution reactions"

Showing result 6 - 10 of 19 swedish dissertations containing the words nucleophilic substitution reactions.

  2. 6. 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

  4. 7. 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

  5. 8. Green Colloid Chemistry: Characterization of Environmentally Friendly Nonionic Surfactant Systems

    Author : Christy Whiddon; Fysikalisk kemi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; nucleophilic substitution; alkylglucosides; bicontinious micelles; self-diffusion NMR; nonionic surfactants; micellar catalysis; Physical chemistry; pKa; Fysikalisk kemi;

    Abstract : Phase diagrams of mixed alkylglucoside surfactants, n-nonyl-b-D-glucopyranoside and n-decyl-b-D-glucopyranoside (C9G1 and C10G1) have been examined for the purpose of determining the microstructure surrounding a closed-loop miscibiliyt gap. There are large deuterium isotope effects on the phase diagram. READ MORE

  6. 9. 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. 10. Computational Studies of Chemical Interactions: Molecules, Surfaces and Copper Corrosion

    Author : Joakim Halldin Stenlid; Tore Brinck; Thomas Bligaard; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; computational chemistry; density functional theory; chemical interactions; reactivity descriptors; copper corrosion; surface and materials science; nucleophilic substitution reactions; heterogeneous catalysis; transition metal oxides; nanotechnology; beräkningskemi; täthetsfunktionalteori; kemiska interaktioner; reaktivitetsdeskriptorer; kopparkorrosion; yt- och materialvetenskap; nukleofila substitutionsreaktioner; heterogen katalys; överångsmetalloxider; nanoteknologi; Kemi; Chemistry;

    Abstract : The chemical bond – a corner stone in science and a prerequisite for life – is the focus of this thesis. Fundamental and applied aspects of chemical bonding are covered including the development of new computational methods for the characterization and rationalization of chemical interactions. READ MORE