2 research outputs found
Syntheses, Characterization, and Reactivity of Diruthenium Hydrido Complexes
No full textThe
reaction of [<i>cis-</i>{(η<sup>5</sup>-C<sub>5</sub>H<sub>3</sub>)<sub>2</sub>(CMe<sub>2</sub>)<sub>2</sub>}ÂRu<sub>2</sub>(κ<sup>2</sup>-4,4′-di-<i>tert</i>-butyl-2,2′-bipyridine)<sub>2</sub>Â(MeCN)<sub>2</sub>]Â[OTf]<sub>2</sub>, <b>1</b>, with H<sub>2</sub> yields a μ-dihydrido complex, [<i>cis-</i>{(η<sup>5</sup>-C<sub>5</sub>H<sub>3</sub>)<sub>2</sub>(CMe<sub>2</sub>)<sub>2</sub>}ÂRu<sub>2</sub>(κ<sup>2</sup>-4,4′-di-<i>tert</i>-butyl-2,2′-bipyridine)<sub>2</sub>Â(μ-H)<sub>2</sub>]Â[OTf]<sub>2</sub>, <b>2</b>, in 79% yield. The reaction of <b>2</b> with Et<sub>3</sub>SiH affords a mono<i>-</i>μ-hydrido complex, <i>cis-</i>{(η<sup>5</sup>-C<sub>5</sub>H<sub>3</sub>)<sub>2</sub>(CMe<sub>2</sub>)<sub>2</sub>}ÂRu<sub>2</sub>(κ<sup>2</sup>-4,4′-di-<i>tert</i>-butyl-2,2′-bipyridine)<sub>2</sub>Â(μ-H)]Â[OTf], <b>3</b>. The reaction of either <b>2</b> or <b>3</b> (1–2 mol %) with C<sub>6</sub>H<sub>6</sub> and Et<sub>3</sub>SiH results in the catalytic cleavage of
the C–H bond in benzene along with the cleavage of the Si–Et
bond to form PhEt<sub>2</sub>SiH (23–27% conversion) and C<sub>2</sub>H<sub>6</sub>. The reaction of <b>2</b> or <b>3</b> (1 mol %) with THF and Et<sub>3</sub>SiH results in the cleavage
of the C–H bond in THF followed by the insertion of the SiEt<sub>2</sub> group into the C–O bond, forming 2,2-diethyl-1-oxa-2-silacyclohexane
(14% conversion) as one of the products
Syntheses, Characterization, and Reactivity of Diruthenium Hydrido Complexes
No full textThe
reaction of [<i>cis-</i>{(η<sup>5</sup>-C<sub>5</sub>H<sub>3</sub>)<sub>2</sub>(CMe<sub>2</sub>)<sub>2</sub>}ÂRu<sub>2</sub>(κ<sup>2</sup>-4,4′-di-<i>tert</i>-butyl-2,2′-bipyridine)<sub>2</sub>Â(MeCN)<sub>2</sub>]Â[OTf]<sub>2</sub>, <b>1</b>, with H<sub>2</sub> yields a μ-dihydrido complex, [<i>cis-</i>{(η<sup>5</sup>-C<sub>5</sub>H<sub>3</sub>)<sub>2</sub>(CMe<sub>2</sub>)<sub>2</sub>}ÂRu<sub>2</sub>(κ<sup>2</sup>-4,4′-di-<i>tert</i>-butyl-2,2′-bipyridine)<sub>2</sub>Â(μ-H)<sub>2</sub>]Â[OTf]<sub>2</sub>, <b>2</b>, in 79% yield. The reaction of <b>2</b> with Et<sub>3</sub>SiH affords a mono<i>-</i>μ-hydrido complex, <i>cis-</i>{(η<sup>5</sup>-C<sub>5</sub>H<sub>3</sub>)<sub>2</sub>(CMe<sub>2</sub>)<sub>2</sub>}ÂRu<sub>2</sub>(κ<sup>2</sup>-4,4′-di-<i>tert</i>-butyl-2,2′-bipyridine)<sub>2</sub>Â(μ-H)]Â[OTf], <b>3</b>. The reaction of either <b>2</b> or <b>3</b> (1–2 mol %) with C<sub>6</sub>H<sub>6</sub> and Et<sub>3</sub>SiH results in the catalytic cleavage of
the C–H bond in benzene along with the cleavage of the Si–Et
bond to form PhEt<sub>2</sub>SiH (23–27% conversion) and C<sub>2</sub>H<sub>6</sub>. The reaction of <b>2</b> or <b>3</b> (1 mol %) with THF and Et<sub>3</sub>SiH results in the cleavage
of the C–H bond in THF followed by the insertion of the SiEt<sub>2</sub> group into the C–O bond, forming 2,2-diethyl-1-oxa-2-silacyclohexane
(14% conversion) as one of the products
