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

被引：14
作者：
Adams, C. [1 ]
Riviere, P. [2 ]
Riviere-Baudet, M. [2 ]
Morales-Verdejo, C. [3 ]
Dahrouch, M. [4 ]
Morales, V. [1 ]
Castel, A. [2 ]
Delpech, F. [2 ]
Manriquez, J. M. [1 ]
Chavez, I. [1 ]
机构：
[1] Pontificia Univ Catolica Chile, Fac Quim, Dept Quim Inorgan, Santiago, Chile
[2] Univ Toulouse 3, UMR 5069, Lab Heterochim Fondamentale & Appl, F-31062 Toulouse 9, France
[3] Univ Bernardo OHiggins, Dept Ciencias Quim Biol, Lab Bionanotecnol, Santiago, Chile
[4] Univ Concepcion, Fac Ciencias Quim, Dept Quim Organ, Concepcion, Chile
来源：
JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2014年 / 749卷
关键词：
Heterobimetallic complexes; Cooperative effect; Dehydrogenativesylilation; Selectivity; INTRAMOLECULAR HYDROSILATION; HYDROSILYLATION; ALKENES; VINYLSILANES; MECHANISM; TRIALKYLSILANES; ALCOHOLYSIS; DERIVATIVES; CHEMISTRY; PRECURSOR;
D O I：
10.1016/j.jorganchem.2013.10.017
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
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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页码：266 / 274
页数：9
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