C鈥揌 Bond Activation by Radical Ion Pairs Derived from R3P/Al(C6F5)3 Frustrated Lewis Pairs and N2O

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• 作者：Gabriel M茅nard ; Jillian A. Hatnean ; Hugh J. Cowley ; Alan J. Lough ; Jeremy M. Rawson ; Douglas W. Stephan
• 刊名：The Journal of the American Chemical Society
• 出版年：2013
• 出版时间：May 1, 2013
• 年：2013
• 卷：135
• 期：17
• 页码：6446-6449
• 全文大小：250K
• 年卷期：v.135,no.17(May 1, 2013)
• ISSN：1520-5126

文摘

Al(C₆F₅)₃/R₃P [R = tert-butyl (tBu), mesityl (Mes), naphthyl (Nap)] frustrated Lewis pairs react with N₂O to form species having the formula R₃P(N₂O)Al(C₆F₅)₃, which react with additional alane to generate proposed frustrated radical ion pairs formulated as [R₃P路][(渭-O路)(Al(C₆F₅)₃)₂] that can activate C鈥揌 bonds. For R = tBu, C鈥揌 activation of a tBu group affords [tBu₂PMe(C(CH₂)Me)][(渭-OH)(Al(C₆F₅)₃)₂]. In the case of R = Mes, the radical cation salt [Mes₃P路][(渭-HO)(Al(C₆F₅)₃)₂] is isolated, while for R = Nap, the activation of toluene and bromobenzene gives [(Nap)₃PCH₂Ph][(渭-OH)(Al(C₆F₅)₃)₂] and [(Nap)₃PC₆H₄Br][(渭-HO)(Al(C₆F₅)₃)₂], respectively.