Article discussing platinum(II)-catalyzed ethylene hydrophenylation and the influence of dipyridyl chelate ring size on catalyst activity and longevity.
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Article discussing platinum(II)-catalyzed ethylene hydrophenylation and the influence of dipyridyl chelate ring size on catalyst activity and longevity.
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9 p.: ill.
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Reprinted with permission from Organometallics. Copyright 2013 American Chemical Society.
Abstract: The series of Ptᴵᴵ complexes [(˟bpy)Pt(Ph)(THF)][BAr'₄] (˟bpy = 4,4'-X-2,2'-bipyridyl, X = OMe, ᵗBu, H, Br, CO₂Et, NO₂; Ar' = 3,5-bis(trifluoromethyl)phenyl) are catalyst precursors for ethylene hydrophenylation. The bipyridyl substituent provides a tunable switch for catalyst selectivity that also has significant influence on catalyst activity and longevity. Less electron donating 4,4'-substituents increase the propensity toward styrene formation over ethyl-benzene.
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McKeown, Bradley A.; Gonzalez, Hector Emanuel; Friedfeld, Max R.; Brosnahan, Anna M.; Gunnoe, T. Brent; Cundari, Thomas R., 1964- et al.Platinum(II)-Catalyzed Ethylene Hydrophenylation: Switching Selectivity between Alkyl- and Vinylbenzene Production,
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