α-Substituted Benzylic Complexes of Palladium(II) as Precursors of Palladium Hydrides
The adoption of a pseudoallylic (η3) form makes palladium benzylic derivatives a class of stabilized palladium alkyls that can undergo β-H elimination reactions in a more controlled way. α- (Pentafluorophenylmethyl)benzyl palladium complexes have been studied and they decompose by β-H elimination to...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2018 |
| País: | España |
| Institución: | Universidad de Valladolid |
| Repositorio: | UVaDOC. Repositorio Documental de la Universidad de Valladolid |
| OAI Identifier: | oai:uvadoc.uva.es:10324/31461 |
| Acceso en línea: | https://doi.org/10.1021/acs.organomet.8b00066 http://uvadoc.uva.es/handle/10324/31461 |
| Access Level: | acceso abierto |
| Palabra clave: | Chemistry Organometallic Chemistry Palladium Benzyl complexes Hydrides Transmetalation |
| Sumario: | The adoption of a pseudoallylic (η3) form makes palladium benzylic derivatives a class of stabilized palladium alkyls that can undergo β-H elimination reactions in a more controlled way. α- (Pentafluorophenylmethyl)benzyl palladium complexes have been studied and they decompose by β-H elimination to give palladium hydrides that, depending on the auxil- iary ligands can: a) transmetalate to another palladium atom and, by reductive elimina- tion, give hydrogenated products; this process is favored for a combination of bridging ligands (i.e halogens) and low coordinating ligands. b) Be used as a hydride source and get trapped by a diene to give palladium allylic derivatives. The presence of carbon mon- oxide does not induce a β-H elimination reactions and only CO insertion into the Pd- benzyl bond to give acyl derivatives is observed. |
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