Abstract
The solid state structure, phosphine dissociation rates and catalytic activity of several Rh-N-heterocyclic carbene complexes were studied. Catalytic activity for the hydrogenation of β-methylstyrene was improved by up to two orders of magnitude upon the addition of copper chloride. The catalyst with the highest inherent activity was found to be [Rh(IMes)(P-p-FC6H 4)3], although the p-methoxy derivative benefited the most from the addition of CuCl, giving turnover numbers of over 400 h-1.
Original language | English |
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Pages (from-to) | 5736-5746 |
Number of pages | 11 |
Journal | Journal of Organometallic Chemistry |
Volume | 690 |
Issue number | 24-25 |
DOIs | |
Publication status | Published - 1 Dec 2005 |
Externally published | Yes |
Keywords
- Catalysis
- Hydrogenation
- N-heterocyclic carbene
- Phosphine exchange
- Rhodium
- Saturation transfer
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Allen, D. P., Crudden, C. M., Calhoun, L. A., Wang, R., & Decken, A. (2005). Rhodium N-heterocyclic carbene complexes: Synthesis, structure, NMR studies and catalytic activity. Journal of Organometallic Chemistry, 690(24-25), 5736-5746. https://doi.org/10.1016/j.jorganchem.2005.07.037