Highly Selective and Catalytic Oxygenations of C−H and C=C Bonds by a Mononuclear Nonheme High‐Spin Iron(III)‐Alkylperoxo Species
作者:Ivy Ghosh、Sridhar Banerjee、Satadal Paul、Teresa Corona、Tapan Kanti Paine
DOI:10.1002/anie.201906978
日期:2019.9.2
iron(III)-alkylperoxo intermediate [FeIII (t-BuLUrea )(OOCm)(OH2 )]2+ (2), generated from [FeII (t-BuLUrea )(H2 O)(OTf)](OTf) (1) [t-BuLUrea =1,1'-(((pyridin-2-ylmethyl)azanediyl)bis(ethane-2,1-diyl))bis(3-(tert-butyl)urea), OTf=trifluoromethanesulfonate] with cumyl hydroperoxide (CmOOH), toward the C-H and C=C bonds of hydrocarbons is reported. 2 oxygenates the strong C-H bonds of aliphatic substrates with high
由[FeII(t-BuLUrea)(H2 O)(OTf)生成的单核高自旋铁(III)-烷基过氧中间体[FeIII(t-BuLUrea)(OOCm)(OH2)] 2+(2)的反应性)](OTf)(1)[t-BuLUrea = 1,1'-(((吡啶-2-基甲基)氮杂二基)双(乙烷-2,1-二基))双(3-(叔丁基)脲),OTf =三氟甲磺酸盐]与氢过氧化枯基(CmOOH),朝向烃的CH和C = C键。2在2,6-二甲基吡啶存在下,以高化学和立体选择性氧化脂肪族底物的强CH键。尽管2本身是一种缓慢的氧化剂,但2,6-二甲基吡啶有助于金属键合的烷基过氧杂合的OO键裂解,从而产生了基于金属的反应性氧化剂。脲基团在支持配体和碱上的作用,