Volume 39, Issue 20 pp. 3646-3649
Communication

Remarkable Anionic Axial Ligand Effects of Iron(III) Porphyrin Complexes on the Catalytic Oxygenations of Hydrocarbons by H2O2 and the Formation of Oxoiron(IV) Porphyrin Intermediates by m-Chloroperoxybenzoic Acid

Wonwoo Nam Prof. Dr.

Wonwoo Nam Prof. Dr.

Department of Chemistry and Division of Molecular Life Sciences Ewha Womans University, Seoul 120-750 (Korea) Fax: (+82) 2-3277-2384

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Mi H. Lim

Mi H. Lim

Department of Chemistry and Division of Molecular Life Sciences Ewha Womans University, Seoul 120-750 (Korea) Fax: (+82) 2-3277-2384

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So-Young Oh

So-Young Oh

Department of Chemistry and Division of Molecular Life Sciences Ewha Womans University, Seoul 120-750 (Korea) Fax: (+82) 2-3277-2384

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Jung H. Lee

Jung H. Lee

Department of Chemistry and Division of Molecular Life Sciences Ewha Womans University, Seoul 120-750 (Korea) Fax: (+82) 2-3277-2384

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Ha J. Lee

Ha J. Lee

Department of Chemistry and Division of Molecular Life Sciences Ewha Womans University, Seoul 120-750 (Korea) Fax: (+82) 2-3277-2384

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Seung K. Woo

Seung K. Woo

Department of Chemistry Sogang University Seoul 121-742 (Korea)

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Cheal Kim Prof. Dr.

Cheal Kim Prof. Dr.

Department of Fine Chemistry Seoul National Polytechnic University Seoul 139-743 (Korea)

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Woonsup Shin Prof. Dr.

Woonsup Shin Prof. Dr.

Department of Chemistry Sogang University Seoul 121-742 (Korea)

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This work was supported by Center for Cell Signaling Research (1999-2-122-002-4), the Korean Research Foundation (KRF-99-042-D00068), and the MOST through the Women's University Research Fund (99-N6-01-01-A-07).

Abstract

A marked influence on the catalytic epoxidation and hydroxylation of hydrocarbons by aqueous 30 % H2O2 in an aprotic solvent and on the formation of oxoiron(IV) porphyrin intermediates in m-chloroperoxybenzoic acid (m-CPBA) reactions in polar solvent is shown by the anionic axial ligands of an electron-deficient iron(III) porphyrin complex [Fe(tpfpp)X] (tpfpp=meso-tetrakis(pentafluorophenyl)porphinato dianion; see scheme).

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