Tetrahedron Letters p. 339 - 342 (1982)
Update date:2022-08-04
Topics:
Nishinaga, A.
Tomita, H.
Oda, M.
Matsuura, T.
p-Nitrophenylhydrazones, unsusceptible to autooxidation, are readily oxygenated in the presence of a five-coordinate cobalt(II)-Schiff base complex, Co(II)(MeOSalen)(Py) leading to quantitative formation of novel 1(p-nitrophenylazo)-1-peroxy Co(III) complexes 2, which were isolated as crystals.A plausible mechanism involving hydrogen abstraction by Co(III)(O2-.) from the substrate followed by formation of a substrate anion Co(III) complex intermediate is proposed.
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(1981)
