Aromatic hydroxylation by molecular oxygen performed by mononuclear benzoato iron(II) complexes and preparation of new iron(III) complex with two minus ligand
Aromatic hydroxylation by molecular oxygen performed by mononuclear benzoato iron(II) complexes and preparation of new iron(III) complex with two minus ligand
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DOI:
10.1016/j.inoche.2007.12.032
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发表时间:
2008-04-01
影响因子:
3.8
通讯作者:
Okamoto, Ken-ichi
中科院分区:
文献类型:
--
作者:
Fujisawa, Kiyoshi;Tada, Naoki;Okamoto, Ken-ichi
A novel oxygen insertion reaction by molecular oxygen into an aromatic C-H bond in benzoato iron(II) complexes [Fe-II {HB(3-Ph-5-MePZ)(3))(eta(1) -O2CC6H4-p-X)(3-Ph-5-MepzH)] (2a (X = Cl), 2b (X = H), and 2c (X = OMe)) is described. The structures of the hydroxylated complexes [Fe-III {HB(3-OPh-5-Mepz)(3-Ph-5-MepZ)(2))(eta(1)-O2CC6H4-p-X)(3-Ph-5-MepzH)] (3a (X=Cl), 3b (X=H), and 3c (X = OMe)) were determined by X-ray crystallography and other spectroscopic characterizations were performed; one of the phenyl rings in the hydrotris(pyrazolyl)borate ligand was hydroxylated. A new purple colored iron(III) complex [Fe-III {HB(3-OPh-5-Mepz)(3-Ph-5-MePZ)(2)}(3-Ph-5-Mepz)] (4), which was obtained by the reaction of 3a with base, is also characterized. (C) 2008 Elsevier B.V. All rights reserved.