Catalytic study of heterobimetallic rhodium complexes derived from partially alkylated s-indacene in dehydrogenative silylation of olefins

Adams C.; Riviere, P; Riviere-Baudet, M; Morales-Verdejo, C; Dahrouch M.; Morales, V; Castel A; Delpech, F; Manriquez, JM; Chavez, I

Abstract

This work describes the catalytic study of heterobimetallic rhodium compounds derived from partially alkylated s-indacene in dehydrogenative silylation of olefins in order to elucidate as much as possible the effects of: solvent, temperature, chemical substrates, olefin effect, silane effect, and secondary metallic fragment. The rhodium complexes, anti-[Cp*Fe-s-Ic'-Rh(COD)] 1, anti-[Cp*Ru-s-Ic'-Rh(COD)] 2, and syn-[Cp*Ru-s-Ic'-Rh(COD)] 2' (with s-Ic': 2,6-diethyl-4,8-dimethyl-s-indaceneiide) were previously synthesized and characterized, and were compared with the catalytic activity of the complexes previously reported; monometallic [(COD)Rh-s-Ic'H] 3, and homobimetallic anti-[{(COD)Rh}(2)-s-Ic'] 4, and syn-[{(COD)Rh}(2)-s-Ic'] 4'. The heterobimetallic complexes show a high activity and selectivity for the dehydrogenative silylation of styrene and these complexes show also the presence of a cooperative effect between both metallic centers, which is evidenced when compared with monometallic complex. (C) 2013 Elsevier B. V. All rights reserved.

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Título según WOS: Catalytic study of heterobimetallic rhodium complexes derived from partially alkylated s-indacene in dehydrogenative silylation of olefins
Título de la Revista: JOURNAL OF ORGANOMETALLIC CHEMISTRY
Volumen: 749
Editorial: ELSEVIER SCIENCE SA
Fecha de publicación: 2014
Página de inicio: 266
Página final: 274
Idioma: English
URL: http://linkinghub.elsevier.com/retrieve/pii/S0022328X13007560
DOI:

10.1016/j.jorganchem.2013.10.017

Notas: ISI