English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/111390
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Citado 16 veces en Web of Knowledge®  |  Pub MebCentral Ver citas en PubMed Central  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar otros formatos: Exportar EndNote (RIS)Exportar EndNote (RIS)Exportar EndNote (RIS)
Título

Reversible insertion of carbenes into ruthenium-silicon bonds

Autor Bernal, María J. ; Torres, Olga ; Martín, Marta ; Sola, Eduardo
Fecha de publicación 2013
EditorAmerican Chemical Society
Citación Journal of the American Chemical Society 135(50): 19008-19015 (2013)
ResumenThe five-coordinate carbene complexes [Ru{κP,P,Si-Si(Me)(C 6H4-2-PiPr2)2}Cl(=CHR)] (2, R = Ph; 3, R = SiMe3), analogues of the Grubbs catalyst, were prepared from the dimer [Ru(μ-Cl){κP,P,Si-Si(Me)(C6H4-2- PiPr2)2}]2 (1) and the corresponding diazoalkane N2CHR. The particular structural features that result from the presence of a strongly trans directing silyl group at the pincer ligand of these complexes are discussed on the basis of NMR information and the crystal structure of the vinylidene analogue [Ru{κP,P,Si-Si(Me)(C 6H4-2-PiPr2)2}Cl(=C=CHPh)] (4), which was also obtained from 1 and phenylacetylene. The reactions of 3 with reagents such as P(OMe)3, CO, NCMe, and K(acac) illustrate that the first response of these carbene complexes to an increase of the coordination number around ruthenium is the insertion of the carbene ligand into the Ru-Si bond. These reactions also indicate that the insertion process is reversible and allows typical transformations of carbene ligands such as C-H functionalizations via carbene insertion (in the acac ligand) or the formation of ketene from CO. In addition, the reactions of 3 with terminal alkynes such as phenylacetylene or 3,3-dimethyl-1-butyne show that the inserted carbenes can also undergo reactions typical of metal-bound alkyls such as alkyne insertion and C-H reductive elimination. © 2013 American Chemical Society.
Versión del editorhttp://dx.doi.org/10.1021/ja410822p
URI http://hdl.handle.net/10261/111390
DOI10.1021/ja410822p
Identificadoresdoi: 10.1021/ja410822p
issn: 0002-7863
e-issn: 1520-5126
Aparece en las colecciones: (ISQCH) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
ReversibleInsertionrevised.pdf738,1 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 



NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.