Catalytic Role of Multinuclear Palladium–Oxygen Intermediates in Aerobic Oxidation Followed by Hydrogen Peroxide Disproportionation
…, KL Walker, RN Zare, RM Waymouth
文献索引:Chung, Kevin; Banik, Steven M.; De Crisci, Antonio G.; Pearson, David M.; Blake, Timothy R.; Olsson, Johan V.; Ingram, Andrew J.; Zare, Richard N.; Waymouth, Robert M. Journal of the American Chemical Society, 2013 , vol. 135, # 20 p. 7593 - 7602
Aerobic oxidation of alcohols are catalyzed by the Pd–acetate compound [LPd (OAc)] 2 (OTf) 2 (L= neocuproine= 2, 9-dimethyl-1, 10-phenanthroline) to form ketones and the release of hydrogen peroxide, but the latter rapidly undergoes disproportionation. We employ a series of kinetic and isotope labeling studies made largely possible by electrospray ionization mass spectrometry to determine the role of intermediates in causing this complex ...