Preferential α-hydrosilylation of terminal alkynes by bis-N-heterocyclic carbene rhodium(III) catalysts
We describe a bis-N-heterocyclic carbene rhodium(III) complex, featuring two trifluoroacetato ligands, that affords a variety of a-vinylsilanes in good yields by hydrosilylation of terminal alkynes. Selectivities around 7:1 α/β-(E) were reached, while the β-(Z) product was only marginally obtained....
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2015 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/133755 |
| Acceso en línea: | http://hdl.handle.net/10261/133755 |
| Access Level: | acceso abierto |
| Palabra clave: | NHC Vinylsilanes Carbene Hydrosilylation Rhodium |
| Sumario: | We describe a bis-N-heterocyclic carbene rhodium(III) complex, featuring two trifluoroacetato ligands, that affords a variety of a-vinylsilanes in good yields by hydrosilylation of terminal alkynes. Selectivities around 7:1 α/β-(E) were reached, while the β-(Z) product was only marginally obtained. This example sharply contrasts with the β-(Z)-selectivity observed for its parent diiodido complex |
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