Chemically modified cyclodextrins adsorbed on Pd/C particles: New opportunities to generate highly chemo- and stereoselective catalysts for Heck reaction
| Autor: | Eric Monflier, Nicolas Kania, Frédéric Hapiot, Anne Ponchel, Sophie Fourmentin, Andy Cassez |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
inorganic chemicals
chemistry.chemical_classification Acrylate Cyclodextrin Process Chemistry and Technology Aryl chemistry.chemical_element Substrate (chemistry) General Chemistry Combinatorial chemistry Catalysis carbohydrates (lipids) chemistry.chemical_compound Adsorption chemistry Heck reaction polycyclic compounds Organic chemistry lipids (amino acids peptides and proteins) Palladium |
| Zdroj: | Catalysis Communications. 9:1346-1351 |
| ISSN: | 1566-7367 |
| DOI: | 10.1016/j.catcom.2007.11.031 |
| Popis: | The multifunctional properties of modified cyclodextrins (CDs) in a palladium–charcoal catalyzed Heck reaction have been investigated. Contrary to native CDs, the methylated CDs induced a significant increase in chemo- and stereoselectivities in the C–C coupling between aryl iodides and acrylate derivatives. These results were rationalized by considering that the key parameter is the adsorption of the cyclodextrin on the catalytic solid and not the solubilisation of the substrate into the aqueous phase by cyclodextrin. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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