Aromatic C−H Activation and Catalytic Hydrophenylation of Ethylene by TpRu{P(OCH2)3CEt}(NCMe)Ph

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• 作者：Nicholas A. Foley ; Zhuofeng Ke ; T. Brent Gunnoe ; Thomas R. Cundari ; Jeffrey L. Petersen
• 刊名：Organometallics
• 出版年：2008
• 出版时间：July 14, 2008
• 年：2008
• 卷：27
• 期：13
• 页码：3007 - 3017
• 全文大小：845K
• 年卷期：v.27,no.13(July 14, 2008)
• ISSN：1520-6041

文摘

The complexes TpRu{P(OCH₂)₃CEt}(L)R {L = PPh₃ or NCMe; R = Cl, OTf (OTf = trifluoromethanesulfonate), or Ph; Tp = hydridotris(pyrazolyl)borate} and TpRu{P(OCH₂)₃CEt}(η³-C₃H₄Me) were synthesized and isolated. TpRu{P(OCH₂)₃CEt}(NCMe)Ph was found to initiate C−H activation of benzene and to catalyze the hydrophenylation of ethylene to produce ethylbenzene. Ethylene C−H activation to ultimately produce TpRu{P(OCH₂)₃CEt}(η³-C₃H₄Me) kinetically competes with the catalytic hydrophenylation of ethylene. Computational studies were undertaken on reactions in the proposed catalytic ethylene hydrophenylation cycle as well as key side reactions.