Gaertner, Dominik and Welther, Alice and Rad, Babak Rezaei and Wolf, Robert and Jacobi von Wangelin, Axel (2014) Heteroatom-Free Arene-Cobalt and Arene-Iron Catalysts for Hydrogenations. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 53 (14). pp. 3722-3726. ISSN 1433-7851, 1521-3773
Full text not available from this repository. (Request a copy)Abstract
75 years after the discovery of hydroformylation, cobalt catalysts are now undergoing a renaissance in hydrogenation reactions. We have evaluated arene metalates in which the low-valent metal species is-conceptually different from heteroatom-based ligands-stabilized by pi coordination to hydrocarbons. Potassium bis(anthracene)cobaltate 1 and -ferrate 2 can be viewed as synthetic precursors of quasi-"naked" anionic metal species; their aggregation is effectively impeded by (labile) coordination to the various p acceptors present in the hydrogenation reactions of unsaturated molecules (alkenes, arenes, carbonyl compounds). Kinetic studies, NMR spectroscopy, and poisoning studies of alkene hydrogenations support the formation of a homogeneous catalyst derived from 1 which is stabilized by the coordination of alkenes. This catalyst concept complements the use of complexes with heteroatom donor ligands for reductive processes.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ASYMMETRIC TRANSFER HYDROGENATION; ELECTRONIC-STRUCTURE; CARBONYL-COMPLEXES; OLEFINS; DEHYDROGENATION; NANOPARTICLES; CHEMISTRY; MECHANISM; RELEVANT; KINETICS; arene complexes; cobalt; homogeneous catalysis; hydrogenations; iron |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie > Arbeitskreis Prof. Dr. Robert Wolf Chemistry and Pharmacy > Institut für Organische Chemie > Arbeitskreis Prof. Dr. Axel Jacobi von Wangelin |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Nov 2019 13:56 |
| Last Modified: | 14 Nov 2019 13:56 |
| URI: | https://pred.uni-regensburg.de/id/eprint/10338 |
Actions (login required)
 |
View Item |
