Scope and Mechanistic Studies of Catalytic Hydrosilylation with a High-Valent Nitridoruthenium(VI)
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- 作者：Srinivas Abbina ; Shi Bian ; Casey Oian ; Guodong Du
- 刊名：ACS Catalysis
- 出版年：2013
- 出版时间：April 5, 2013
- 年：2013
- 卷：3
- 期：4
- 页码：678-684
- 全文大小：317K
- 年卷期：v.3,no.4(April 5, 2013)
- ISSN：2155-5435
文摘
Hydrosilylation catalyzed by a high-valent nitridoruthenium(VI) compound, [RuN(saldach)(CH3OH)]+[ClO4]鈭?/sup> (1, where saldach is the dianion of racemic N,N鈥?cyclohexan-diyl-bis(salicylideneimine)) is described. Using phenylsilane as reductant, a variety of unsaturated organic substrates, including aldehydes, ketones, and imines, are effectively reduced to alcohols and amines, respectively, accompanied by the redistribution of PhSiH3 at silicon. Mechanistic studies indicate that the catalysis proceeds via silane activation rather than carbonyl activation, and the silane is likely activated via multiple pathways, including a radical-based pathway.