Synthesis and Reactivity of (Pentamethylcyclopentadienyl)ruthenium Complexes of the Stable Neutral Silylene Si(tBuNCHCHNtBu)

Jeffrey M. Dysard; T Don Tilley

doi:10.1021/om000517j

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Synthesis and Reactivity of (Pentamethylcyclopentadienyl)ruthenium Complexes of the Stable Neutral Silylene Si(tBuNCHCHNtBu)

Article 2000 en

Abstract

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The coordination chemistry of the stable silylene (1) in Cp*Ru complexes has been investigated. Silylene 1 reacts with 0.25 equiv of [Cp*RuCl]4 to give the 16-electron Ru silylene complex (2). This complex reacts with primary silanes to give the unusual products (3, R = Ph; 4, R = Hex (n-hexyl)). The structures of these products were confirmed by 1H, 13C, and 29Si NMR and IR spectroscopy and, in the case of 4, by X-ray crystallography. In addition, reaction of 1 with 1 equiv of [Cp*Ru(NCMe)3]OTf gave the product of displacement of one acetonitrile group from Ru, (5). Heating 5 in THF results in precipitation of a crystalline complex formulated as (6).

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Synthesis and Reactivity of (Pentamethylcyclopentadienyl)ruthenium Complexes of the Stable Neutral Silylene Si(<sup>t</sup>BuNCHCHN<sup>t</sup>Bu)

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