Kubis, Christoph and Profir, Irina and Fleischer, Ivana and Baumann, Wolfgang and Selent, Detlef and Fischer, Christine and Spannenberg, Anke and Ludwig, Ralf and Hess, Dieter and Franke, Robert and Boerner, Armin (2016) In Situ FTIR and NMR Spectroscopic Investigations on Ruthenium-Based Catalysts for Alkene Hydroformylation. CHEMISTRY-A EUROPEAN JOURNAL, 22 (8). pp. 2746-2757. ISSN 0947-6539, 1521-3765
Full text not available from this repository. (Request a copy)Abstract
Homogeneous ruthenium complexes modified by imidazole-substituted monophosphines as catalysts for various highly efficient hydroformylation reactions were characterized by in situ IR spectroscopy under reaction conditions and NMR spectroscopy. A proper protocol for the preformation reaction from [Ru-3(CO)(12)] is decisive to prevent the formation of inactive ligand-modified polynuclear complexes. During catalysis, ligand-modified mononuclear ruthenium(0) carbonyls were detected as resting states. Changes in the ligand structure have a crucial impact on the coordination behavior of the ligand and consequently on the catalytic performance. The substitution of CO by a nitrogen atom of the imidazolyl moiety in the ligand is not a general feature, but it takes place when structural prerequisites of the ligand are fulfilled.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TARGET ENTROPY MINIMIZATION; PHOSPHITE-MODIFIED HYDROFORMYLATION; COMPONENT SPECTRAL RECOVERY; P-C BOND; CARBON-DIOXIDE; IONIC LIQUIDS; ASYMMETRIC HYDROFORMYLATION; HOMOGENEOUS CATALYSIS; IRIDIUM CATALYSTS; TERMINAL ALKYNES; homogeneous catalysis; hydroformylation; IR spectroscopy; P ligands; ruthenium |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Organische Chemie > Arbeitskreis Dr. Ivana Fleischer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 12 Mar 2019 09:07 |
| Last Modified: | 12 Mar 2019 09:07 |
| URI: | https://pred.uni-regensburg.de/id/eprint/2397 |
Actions (login required)
 |
View Item |
