Syntheses, Characterization, and Reactivity of Diruthenium Hydrido Complexes
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- 作者：Heather R. Wiltse ; Alyssa N. Johnson ; Raphael J. Durand ; William Brennessel ; Robert M. Chin
- 刊名：Organometallics
- 出版年：2016
- 出版时间：April 25, 2016
- 年：2016
- 卷：35
- 期：8
- 页码：1079-1085
- 全文大小：379K
- 年卷期：0
- ISSN：1520-6041
文摘
The reaction of [cis-{(η5-C5H3)2(CMe2)2}Ru2(κ2-4,4′-di-tert-butyl-2,2′-bipyridine)2(MeCN)2][OTf]2, 1, with H2 yields a μ-dihydrido complex, [cis-{(η5-C5H3)2(CMe2)2}Ru2(κ2-4,4′-di-tert-butyl-2,2′-bipyridine)2(μ-H)2][OTf]2, 2, in 79% yield. The reaction of 2 with Et3SiH affords a mono-μ-hydrido complex, cis-{(η5-C5H3)2(CMe2)2}Ru2(κ2-4,4′-di-tert-butyl-2,2′-bipyridine)2(μ-H)][OTf], 3. The reaction of either 2 or 3 (1–2 mol %) with C6H6 and Et3SiH results in the catalytic cleavage of the C–H bond in benzene along with the cleavage of the Si–Et bond to form PhEt2SiH (23–27% conversion) and C2H6. The reaction of 2 or 3 (1 mol %) with THF and Et3SiH results in the cleavage of the C–H bond in THF followed by the insertion of the SiEt2 group into the C–O bond, forming 2,2-diethyl-1-oxa-2-silacyclohexane (14% conversion) as one of the products.