Volume 44, Issue 26 pp. 4083-4087
Communication

Sequential Enzymatic Oxidation of Aminoarenes to Nitroarenes via Hydroxylamines

Robert Winkler

Robert Winkler

Leibniz Institute for Natural Products Research and Infection Biology, HKI, Beutenbergstrasse 11a, 07745 Jena, Germany, Fax: (+49) 3641-656-705

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Christian Hertweck

Christian Hertweck

Leibniz Institute for Natural Products Research and Infection Biology, HKI, Beutenbergstrasse 11a, 07745 Jena, Germany, Fax: (+49) 3641-656-705

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First published: 17 June 2005
Citations: 71

We thank the Deutsche Forschungsgemeinschaft for financial support in the priority program SPP1152 “Evolution of Metabolic Diversity” (HE 3469/2) and A. Perner for MS measurements.

Graphical Abstract

The at-line detection of an amino group oxidation catalyzed by the N-oxygenase AurF provides the first direct evidence for a stepwise enzymatic oxidation of aromatic amines to nitro groups via a hydroxylamine intermediate (see scheme). The sequential nature of this reaction is further supported by biotransformation of the intermediate and the identification of a p-aminobenzoate-derived azoxy side product.

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