| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1322826 | Journal of Organometallic Chemistry | 2013 | 4 Pages |
The reaction of (bromoethynyl)benzene with κ2-acetylacetonatobis(trimethylphosphine)rhodium(I), [Rh(acac)(PMe3)2] 1, was followed by in situ1H and 31P NMR spectroscopy. The kinetic product is that of cis-oxidative addition of the C–Br bond to Rh, and this species rearranges to the thermodynamically more stable trans-oxidative addition product trans-[Rh(acac)(Br)(CCPh)(PMe3)2] 3. The structures of both 1 and 3 have been determined by single-crystal X-ray diffraction.
Graphical abstractOxidative addition of the C–Br bond of (bromoethynyl)benzene to κ2-acetylacetonatobis(trimethylphosphine)rhodium(I), [Rh(acac)(PMe3)2] 1, was followed by in situ1H and 31P NMR spectroscopy. The kinetic cis-oxidative addition product rearranges to more stable trans-[Rh(acac)(Br)(CCPh)(PMe3)2] 3. The structures of both 1 and 3 have been determined by single-crystal X-ray diffraction.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Oxidative addition of a bromoalkyne to Rh(I) gives the cis kinetic product. ► The cis complex rearranges slowly to the thermodynamically more stable trans-complex. ► The starting material and final product were characterized by X-ray diffraction.
