Search for dissertations about: "metal-mediated reactions"

Showing result 1 - 5 of 8 swedish dissertations containing the words metal-mediated reactions.

2. 1. Novel Metal-Mediated Organic Transformations : Focusing on Microwave Acceleration and the Oxidative Heck Reaction

   Author : Per-Anders Enquist; Mats Larhed; Anders Hallberg; Troels Skrydstrup; Uppsala universitet; []
   Keywords : Organic chemistry; palladium II ; oxidative Heck reaction; high-throughput-chemistry; microwave acceleration; dicobalt octacarbonyl; in situ carbonylation; urea; diaryl ketones; ESI-MS; Organisk kemi;

   Abstract : Transition metals have played an important role in synthetic organic chemistry for more than a century, and offer catalytic transformations that would have been impossible with classical chemistry. One of the most useful and versatile of the transition metals is palladium, which over the years has catalyzed many important carbon-carbon forming reactions. READ MORE

4. 2. Transition Metal-Mediated Selective Functionalizations of Bio-Derived Building Blocks

   Author : Petter Dunås; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; phenols; Heck reaction; microbial arene oxidation; green chemistry; domino reactions; chirality transfer; palladium; metal carbonyl; azulenes; renewable resources; iron;

   Abstract : In order to transition to a more sustainable chemical industry, it is necessary to replace the fossil starting materials that are largely used today with renewable ones. Starting materials available from abundant natural sources, or which can be efficiently produced via a biotransformation, are of high interest in this regard. READ MORE

5. 3. New Strategies for Transition Metal-mediated (Hetero)arene Functionalization

   Author : Fredric Ingner; Lukasz Pilarski; Joanna Wencel-Delord; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES;

   Abstract : This thesis describes new approaches to achieve efficient and selective (hetero)arene derivatization using transition metals. The main focus falls on the use of strategies based on C–H activation and organo-main group reactivity to render the synthesis of various (hetero)arene derivatives more direct, efficient, regioselective and sustainable. READ MORE

6. 4. General Protocols for the Preparation of Tröger's Base Analogues and Molecular Recognition by Designed Tröger's Base Receptors

   Author : Jacob Jensen; Centrum för analys och syntes; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Organic chemistry; Organisk kemi; non-covalent bonds.; molecular recognition; desymmetrization; metal-mediated reactions; Tröger s base; synthetic protocols;

   Abstract : 2,8-Dihalo substituted analogues of Tröger’s base were prepared via the Tröger’s base condensation reaction. These compounds were used as synthetic intermediates for the preparation of otherwise inaccessible functionalized Tröger’s base analogues. READ MORE

7. 5. [11C]Carbon Monoxide in Rhodium-/Palladium-Mediated Carbonylation Reactions

   Author : Julien Barletta; Bengt Långström; Yu-Shin Ding; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Organic chemistry; carbonylation reaction; carbon monoxide; PET; 11C-labelling; rhodium; palladium; Organisk kemi; Organic chemistry; Organisk kemi;

   Abstract : Methods for the 11C-labeling of carbonyl compounds applicable in the preparation of radiotracers for Positron Emission Tomography (PET) are described. To this end [11C]carbon monoxide at low concentration was used in transition metal- mediated reactions. READ MORE