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Alkene Isomerisation Catalysed by a Ruthenium PNN Pincer Complex.
- Source :
-
Chemistry - A European Journal . Nov2014, Vol. 20 Issue 47, p15434-15442. 9p. - Publication Year :
- 2014
-
Abstract
- The [Ru(CO)H(PNN)] pincer complex based on a dearomatised PNN ligand (PNN: 2-di- tert-butylphosphinomethyl-6-diethylaminomethylpyridine) was examined for its ability to isomerise alkenes. The isomerisation reaction proceeded under mild conditions after activation of the complex with alcohols. Variable-temperature (VT) NMR experiments to investigate the role of the alcohol in the mechanism lend credence to the hypothesis that the first step involves the formation of a rearomatised alkoxide complex. In this complex, the hemilabile diethylamino side-arm can dissociate, allowing alkene binding cis to the hydride, enabling insertion of the alkene into the metal-hydride bond, whereas in the parent complex only trans binding is possible. During this study, a new uncommon Ru0 coordination complex was also characterised. The scope of the alkene isomerisation reaction was examined. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ISOMERIZATION
*RUTHENIUM
*PLATINUM group
*LIGANDS (Chemistry)
*ALKENES
Subjects
Details
- Language :
- English
- ISSN :
- 09476539
- Volume :
- 20
- Issue :
- 47
- Database :
- Academic Search Index
- Journal :
- Chemistry - A European Journal
- Publication Type :
- Academic Journal
- Accession number :
- 99277120
- Full Text :
- https://doi.org/10.1002/chem.201403236