| Autor: |
Lizette Schmieder-van de Vondervoort, Johannes G. de Vries, André H.M. de Vries, Monique Anna Maria Walet, John Mommers, Huub J.W. Henderickx, Parlevliet Floris Jacobus |
| Přispěvatelé: |
Stratingh Institute of Chemistry, Synthetic Organic Chemistry |
| Jazyk: |
angličtina |
| Rok vydání: |
2002 |
| Předmět: |
|
| Zdroj: |
Advanced Synthesis & Catalysis, 344(9). WILEY-V C H VERLAG GMBH |
| Popis: |
Ligand-free palladium can be recovered almost quantitatively from Heck reaction mixtures by filtration after its deposition on a carrier such as silica or celite. Subsequently, it is re-activated to its original activity by adding a small amount of iodine or bromine prior to the next reaction cycle. The catalyst results in excellent yields and selectivities, even for the less reactive aryl bromides. A catalytic cycle based on anionic palladium intermediates is proposed. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
