Journal
CATALYSIS SCIENCE & TECHNOLOGY
Volume 1, Issue 3, Pages 431-436Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1cy00026h
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Funding
- Royal Society of Edinburgh
- Leverhulme Trust
- EPSRC
- EaStCHEM
- EPSRC [EP/G063591/1, EP/F030576/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/G063591/1, EP/F030576/1] Funding Source: researchfish
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In the course of studies on the tandem hydroformylation-reductive amination (hydroaminomethylation), fluorinated mono-phosphines were found to be more active than their more electron-donating counterparts in the enamine hydrogenation step of the reaction; this is in contrast to the widely held view that alkene hydrogenation activity increases with ligand donor strength. DFT calculations comparing the reaction pathways for a simple alkene and a representative enamine show that the rate-determining step changes from the first insertion into a Rh-H bond for but-2-ene to the final reductive elimination step from the Rh-hydride-alkyl species in the enamine hydrogenations.
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