1854-28-0Relevant articles and documents
The Benzoyloxy Radical: Attempted Photochemical Generation for Kinetic Studies and Some Relative Rate Constants
Grossi, L.,Lusztyk, J.,Ingold, K. U.
, p. 5882 - 5885 (1985)
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Mechanism of an Oscillating Organic Reaction: Oxidation of Benzaldehyde with O2 Catalyzed by Co/Br
Roelofs, Mark G.,Wasserman, E.,Jensen, James H.,Nader, Allan E.
, p. 6329 - 6330 (1983)
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Dissociation or cyclization: Options for a triad of radicals released from oxime carbamates
McBurney, Roy T.,Walton, John C.
supporting information, p. 7349 - 7354 (2013/06/27)
A set of oxime carbamates having N-alkyl and N,N-dialkyl substituents were prepared via carbonyldiimidazole intermediates. It was shown by EPR spectroscopy that they underwent clean homolysis of their N-O bonds upon UV photolysis. During photolysis of acetophenone O-allylcarbamoyl oxime, the corresponding oxazolidin-2-onylmethyl radical was detected by EPR spectroscopy, providing the first evidence that N-monosubstituted carbamoyloxyl radicals can hold their structural integrity. N,N-Disubstituted carbamoyloxyl radicals dissociated rapidly at the lowest accessible temperatures. Above room temperature, both types of oxime carbamate acted as selective new precursors for aminyl and iminyl radicals. Rate parameters were measured for 5-exo cyclization of N-benzyl-N-pent-4-enylaminyl radicals; the rate constant was smaller than for C-centered and O-centered analogues. Oxime carbamates derived from the volatile diethylamine afforded aryliminyl radicals that proved convenient for phenanthridine preparations.
Radical formation and initiating activity of peroxide-transition metal acetylacetonate systems in low-temperature polymerization
Anisimov
, p. 1784 - 1788 (2007/10/03)
Dependence of the kinetics of radical formation and the initiating activity of redox systems on the nature of the coordinating metal in the chelate initiators is studied. The kinetic scheme of the process is considered, and the calculated and experimental
