Disilametallacycles as a Platform for Stabilizing M(II) and M(IV) (M = Fe, Ru) Centers: Synthesis and Characterization of Half-Sandwich Complexes and Their Application to Catalytic Double Silylation o

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• 作者：Yusuke Sunada ; Tsuyoshi Imaoka ; Hideo Nagashima
• 刊名：Organometallics
• 出版年：2013
• 出版时间：April 8, 2013
• 年：2013
• 卷：32
• 期：7
• 页码：2112-2120
• 全文大小：415K
• 年卷期：v.32,no.7(April 8, 2013)
• ISSN：1520-6041

文摘

A series of group 8 half-sandwich disilametallacycles, (畏⁶-arene)M^II(Me₂SiC₆H₄SiMe₂)L and (畏⁶-arene)M^IV(H)₂(Me₂SiC₆H₄SiMe₂) (M = Fe, Ru) in the formal oxidation states of M(II) and M(IV) were synthesized and characterized. Both the M(II) and the M(IV) oxidation states were effectively stabilized by the disilametallacycle skeleton, and facile interconversion between (畏⁶-arene)M^II鈥揹initrogen, (畏⁶-arene)M^II鈥揷arbonyl, and (畏⁶-arene)M^IV鈥揹ihydride complexes bearing a disilaferracycle framework was accomplished. These M(II) and M(IV) complexes can easily generate coordinatively unsaturated 16e disilametallacycles, (畏⁶-arene)M^II(Me₂SiC₆H₄SiMe₂), by dissociation of L or H₂, and stoichiometric and/or catalytic double silylation of alkenes and alkynes was realized thorough this 16e intermediate.