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31	Sirné reagenty pro nukleofilní a radikálové zavedení tetrafluorethylových a tetrafluorethylénových skupin / Sulfur-based reagents for nucleophilic and radical introduction of tetrafluoroethyl and tetrafluoroethylene groups Chernykh, Yana January 2014 (has links) Charles University in Prague, Faculty of Science Department of Organic Chemistry Ing. Yana Chernykh Sulfur-Based Reagents for Nucleophilic and Radical Introduction of Tetrafluoroethyl and Tetrafluoroethylene Groups Ph.D. Thesis Prague 2014 ABSTRACT This project was aimed at developing new methodologies for selective introduction of tetrafluoroethyl and tetrafluoroethylene groups into organic molecules. The study was focused on reactivities of fluorinated sulfones and sulfides as tetrafluoroalkylation reagents. In the Introduction part of the thesis, main aspects of organofluorine chemistry are outlined, illustrating beneficial effects of fluorine atoms on physical, chemical and biological properties of organic compounds. General synthetic methods for the selective introduction of fluorine atoms and fluoroalkyl groups to organic molecules are described. Particular attention is given to reactivity and applications of CF2CF2-containing compounds, indicating challenges in synthetic approaches toward tetrafluoroalkylation. The Results and discussion part describes reactivities of four new fluorinated organosulfur reagents as tetrafluoroethyl and tetrafluoroethylene building blocks. The application of these reagents as various carbanionic or radical synthons proved to be effective for the incorporation of CF2CF2...
32	Folding control in ortho-phenylenes through guest binding and chiral induction Peddi, Sumalatha 02 August 2022 (has links) No description available. Chemistry Organic Chemistry Physical Chemistry Organic chemistry physical organic chemistry foldamers aromatic foldamers ortho-phenylenes host-guest crown ethers titration macrocyclic compounds NMR conformational analysis imides chiral induction in foldamers twist sense biasing helical handedness
33	Syntheses and Electron Density Determination of Novel Polyimido Sulfur Ylides / Synthesen und Elektronendichtebestimmung an neuen Polyimido-Schwefelyliden Deuerlein, Stephan 31 October 2007 (has links) No description available. 540 Chemie Mathematics and Computer Science Schwefelylide Organolithiumchemie Ladungsdichte Bindung QTAIM ylidisch ylenisch Metallcomplexe Zinn Magnesium Arsen Schwefel Stickstoff Kohlenstoff Lithium Imide Januskopf-Ligand homobimetallische Komplexe Komplexchemie Polymorphie sulfur ylides organolithium chemistry charge density bonding QTAIM ylidic ylenic metal complexes tin magnesium arsenic sulfur nitrogen carbon lithium imides janus-head ligand homobimetallic complexes complex chemistry polymorphism 35.11 35.44 35.60 35.90 SP 000: Strukturchemie SOC 250: Metallkomplexe Chelate {Chemie: Verbindungstypen} STJ 250: Lithium {Anorganische Chemie} STO 270: Schwefeloxyde

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