Reactivity of dioxygen-copper systems

被引:1140
作者
Lewis, EA
Tolman, WB
机构
[1] Univ Minnesota, Dept Chem, Minneapolis, MN 55455 USA
[2] Univ Minnesota, Ctr Met Biocatalysis, Minneapolis, MN 55455 USA
关键词
D O I
10.1021/cr020633r
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The mechanism by which copper complexes bind and activate dioxygen was analyzed. The kinetic and thermodynamic information was obtained through cryogenic stopped-flow studies of the oxygenation of Cu(I) compounds. It was shown that protonation or acylation of peroxo copper species appears to enhance their O-atom transfer reactivity. It was concluded that O-O homolysis or heterolysis in CuOOH(R) complexes is energetically disfavored because of thermodynamic instability of the resulting Cu(III/IV)-oxo species.
引用
收藏
页码:1047 / 1076
页数:30
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共 295 条
[11]   Kinetic deuterium isotope effect profiles and substituent effects in the oxidative N-demethylation of N,N-dimethylanilines catalyzed by tetrakis(pentafluorophenyl)porphyrin iron(III) chloride [J].
Baciocchi, E ;
Lanzalunga, O ;
Lapi, A ;
Manduchi, L .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (23) :5783-5787
[12]   COPPER(II)-CATALYZED OXIDATION OF CATECHOL BY MOLECULAR-OXYGEN IN AQUEOUS-SOLUTION [J].
BALLA, J ;
KISS, T ;
JAMESON, RF .
INORGANIC CHEMISTRY, 1992, 31 (01) :58-62
[13]   Preparation and oxygenation of (flavonolato)copper isoindoline complexes with relevance to quercetin dioxygenase [J].
Balogh-Hergovich, É ;
Kaizer, J ;
Speier, G ;
Huttner, G ;
Jacobi, A .
INORGANIC CHEMISTRY, 2000, 39 (19) :4224-4229
[14]   Kinetics and mechanism of the Cu(I) and Cu(II) flavonolate-catalyzed oxygenation of flavonol.: Functional quercetin 2,3-dioxygenase models [J].
Balogh-Hergovich, É ;
Kaizer, J ;
Speier, G .
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2000, 159 (02) :215-224
[15]   Kinetic studies on the copper(II)-mediated oxygenolysis of the flavonolate ligand.: Crystal structures of [Cu(fla)2] (fla = flavonolate) and [Cu(O-bs)2(py)3] (O-bs = O-benzoylsalicylate) [J].
Balogh-Hergovich, É ;
Kaizer, J ;
Speier, G ;
Argay, G ;
Párkányi, L .
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1999, (21) :3847-3854
[16]   Quercetin 2,3-dioxygenase mimicking ring cleavage of the flavonolate ligand assisted by copper.: Synthesis and characterization of copper(I) complexes [Cu(PPh3)2(fla)] (fla = flavonolate) and [Cu(PPh3)2(O-bs)] (O-bs = O-benzoylsalicylate) [J].
Balogh-Hergovich, É ;
Kaizer, J ;
Speier, G ;
Fülöp, V ;
Párkányi, L .
INORGANIC CHEMISTRY, 1999, 38 (17) :3787-3795
[17]   Copper-mediated oxygenation of flavonolate in the presence of a tridentate N-ligand.: Synthesis and crystal structures of [Cu(fla)(idpaH)]ClO4 and [Cu(idpaH)(O-bs)]ClO4, [fla = flavonolate, idpaH=3,3′-iminobis(N,N-dimethylpropylamine), O-bs = O-benzoylsalicylate] [J].
Balogh-Hergovich, É ;
Kaizer, J ;
Speier, G ;
Huttner, G ;
Zsolnai, L .
INORGANICA CHIMICA ACTA, 2000, 304 (01) :72-77
[18]  
Balogh-Hergovich É, 2002, EUR J INORG CHEM, P2287
[19]   THE OXYGENATION OF FLAVONOL BY COPPER(I) AND COPPER(II) FLAVONOLATE COMPLEXES - THE CRYSTAL AND MOLECULAR-STRUCTURE OF BIS(FLAVONOLATO)COPPER(II) [J].
BALOGHHERGOVICH, E ;
SPEIER, G ;
ARGAY, G .
JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1991, (08) :551-552
[20]   Synthesis and characterization of copper(I) and copper(II) flavonolate complexes with phthalazine ligand, and their oxygenation and relevance to quercetinase [J].
BaloghHergovich, E ;
Kaizer, J ;
Speier, G .
INORGANICA CHIMICA ACTA, 1997, 256 (01) :9-14