Biomimetic Aryl Hydroxylation Derived from Alkyl Hydroperoxide at a Nonheme Iron Center. Evidence for an Fe<sup>IV</sup>O Oxidant
作者:Michael P. Jensen、Steven J. Lange、Mark P. Mehn、Emily L. Que、Lawrence Que
DOI:10.1021/ja028478l
日期:2003.2.1
[(L(1))Fe(II)(NCCH(3))(2)](ClO(4))(2), [(L(6))Fe(II)(OTf)(2)], and [(L(8))Fe(II)(OTf)(2)](2). The complexes react with tert-butyl hydroperoxide ((t)()BuOOH) in CH(3)CN solutions to give iron(III) complexes of ortho-hydroxylated ligands. The product complex derived from L(1) was identified as the solvated monomeric complex [(L(1)O(-))Fe(III)](2+) in equilibrium with its oxo-bridged dimer [(L(1)O(-))(
许多非血红素铁依赖性酶激活分子氧以催化芳烃底物的羟基化。这种化学的主要特征是通过用单个 α-芳烃取代基修饰三(2-吡啶基甲基)胺 (TPA) 获得的四齿三足配体家族的配合物开发的。这些包括以下:-C(6)H(5)(即,6-PhTPA)、L(1);-oC(6)H(4)D, od(1)-L(1); -C(6)D(5),d(5)-L(1);-mC(6)H(4)NO(2), L(2); -mC(6)H(4)CF(3), L(3); -mC(6)H(4)Cl, L(4); -mC(6)H(4)CH(3), L(5); -mC(6)H(4)OCH(3), L(6); -pC(6)H(4)OCH(3), L(7)。此外,还合成了具有一个 α-苯基和两个 α-甲基取代基 (6,6-Me(2)-6-PhTPA, L(8)) 的相应配体。[(L(1))Fe(II)(NCCH(3))(2)](ClO(4))(2)