Sökning: "Wittig reaction"

Visar resultat 6 - 8 av 8 avhandlingar innehållade orden Wittig reaction.

1. 6. Novel Organophosphorus Compounds for Materials and Organic Synthesis

   Författare :Keyhan Esfandiarfard; Sascha Ott; Declan Gilheany; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : This thesis is devoted to the development of new organophosphorus compounds for potential uses in material science and as reagents in Organic Chemistry. Organophosphorus compounds in a single molecule or organic electronics context are appealing as the phosphorous centers perturb the electronic properties of the π-conjugated systems while at the same time provide synthetic handles for subsequent synthetic modifications. LÄS MER

3. 7. Selectivity in Host-Guest Chemistry

   Författare :Gunnar Westman; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : This thesis describes host-guest complexes with the use of a biphenyl crown ether or cyclodextrin as host. Complexes between the biphenyl crown ether and salts form phenylalanine esters were studied. LÄS MER

4. 8. Late-stage 11C-carbonylation of drug-like molecules for PET

   Författare :Kaisa Horkka; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Positron emission tomography (PET) is a non-invasive in vivo imaging technique used for translational biomedical research and clinical diagnosis. A fundamental pre-condition for PET is the radiolabelled tracer molecule used in the emission measurement, and there is a pressing need to accelerate the development of novel PET tracers to meet an increasing demand from the healthcare system, academia and drug industry. LÄS MER