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Countercations Direct One- or Two-Electron Oxidation of an Al(III) Complex and Al(III)–Oxo Intermediates Activate C–H Bonds

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posted on 10.08.2011, 00:00 by Thomas W. Myers, Louise A. Berben
Hydrogen abstraction by aluminum(III)–oxo intermediates via reaction pathways reminiscent of late transition metal chemistry has been observed. Oxidation of M+[(IP2–)2Al] (IP = iminopyridine, M = Na, Bu4N) yielded [Na(THF)(DME)][(IP)(IP2–)Al(OH)] (3) or [(IP)2Al(OH)] (4), via O-atom transfer and subsequent C–H activation or proton abstraction, respectively.