remained elusive. Herein, we provide UV-Vis, EPR, NMR, XAS and DFT evidence supporting the formation of a metal–iminoiodane complex 2 and its scandium adduct 2-Sc. 2 and 2-Sc are reactive toward substrates in the hydrogen-atom and nitrene transfer reactions, which confirm their potential as active oxidants in metal-catalyzed oxidative transformations. Oxidation of para-substituted 2,6-di-tert-butylphenols
除了含氧金属[M n + O]和亚氨基金属[M n + NR]单元之外,过渡金属–碘亚芳烃[M (n -2)+ –O IPh]和金属–亚氨基碘[M (n −2)+ –N (R)IPh]加合物通常被称为可能的“第二氧化剂”,负责羰基和酰亚胺基团的转移反应。尽管最近已经分离和/或通过光谱表征了一些金属-碘杂芳烃加合物,但金属-亚氨基碘烷加合物仍然难以捉摸。在此,我们提供UV-Vis,EPR,NMR,XAS和DFT证据支持金属-亚氨基碘络合物2及其and加合物2-Sc的形成。2个2-Sc和2-Sc在氢原子和腈转移反应中对底物具有反应性,这证实了它们在金属催化的氧化转化中作为活性氧化剂的潜力。氧化对-取代的2,6-二-叔-butylphenols由2和2-Sc合金可由两个耦合和非耦合质子和电子转移机制发生; 确切的机制依赖于的性质对取代。