Sökning: "carbonyl"

Visar resultat 1 - 5 av 153 avhandlingar innehållade ordet carbonyl.

1. 1. Iron Carbonyl Mediated Parallel Synthesis

   Författare :Henrik Gradén; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; dienyl; scavenger; solid phase; galectin inhibitor; oseltamivir; iron carbonyl complex; polymer bound reagent; cation; linker; parallel synthesis; active ester;

   Sammanfattning : This thesis describes the examination and development of cationic iron carbonyl complexes for use in parallel synthesis both in solution phase and on solid phase. A solution phase methodology for carbon-carbon and carbon-heteroatom formation, utilizing polymer bound reagents and scavengers and amenable for automation has been successfully developed. LÄS MER

3. 2. Bioreduction of Carbonyl Compounds to Chiral Alcohols by Whole Yeast Cells: Process Optimisation, Strain Design and Non-Conventional Yeast Screening

   Författare :Michael Katz; Teknisk mikrobiologi; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; bicyclic diketone; carbonyl; yeast; candida; cerevisiae; reductase; ketone; reduction; whole cell; YMR226c; YDR368w; Microbiology; bacteriology; virology; mycology; Biokemisk teknik; Biochemical technology; mykologi; virologi; Mikrobiologi; bakteriologi;

   Sammanfattning : Chiral building blocks are needed for the production of drugs and fine chemicals, which requires the use of several synthetic routes to produce a specific enantiomer of interest. One promising approach to introduce chirality into molecules is the stereo-selective whole cell bioreduction of carbonyl compounds or ketones to the corresponding chiral alcohols. LÄS MER

4. 3. Deactivation of cobalt and nickel catalysts in Fischer-Tropsch synthesis and methanation

   Författare :Javier Barrientos; Magali Boutonnet; Claude Mirodatos; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cobalt; nickel; Fischer-Tropsch synthesis; methanation; deactivation; carbonyl; sintering; carbon fomation. sulfur; poisoning; Chemical Engineering; Kemiteknik;

   Sammanfattning :             A potential route for converting different carbon sources (coal, natural gas and biomass) into synthetic fuels is the transformation of these raw materials into synthesis gas (CO and H2), followed by a catalytic step which converts this gas into the desired fuels. The present thesis has focused on two catalytic steps: Fischer-Tropsch synthesis (FTS) and methanation. LÄS MER

5. 4. Copper(I) Alkoxides and Aryloxides

   Författare :Cesar Lopes; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; alkoxides; infrared; carbonyl; synthesis; crystal structure; triphenylphosphine; NMR; phenoxides; cryoscopy; aryloxides; Copper I ;

   Sammanfattning : Copper(I) alkoxides and aryloxides have been prepared from mesitylcopper(I) and alcohols or phenols. The solid state structures of the alkoxides and aryloxides are .my.2- and/or . LÄS MER

7. 5. Embryonic Stem Cells: Differentiation into Insulin Producing Cells and Elimination of Damaged Proteins

   Författare :Gabriella Brolén; Stamcellscentrum (SCC); []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Medicin människa och djur ; oxidatively damaged proteins; diabetes; carbonyl; C-peptide; Medicine human and vertebrates ; insulin; human embryonic stem cell; 20S proteasome; AGE; Pdx1; proinsulin;

   Sammanfattning : This thesis includes two different parts: One focusing on how to induce human embryonic stem cells (hESCs) to differentiate into insulin producing cells by following the normal pancreatic development pathway. These cells have then the potential to be an unlimited source for diabetes regenerative medicine. LÄS MER