Abstract
H-atom transfer is a key step in the catalytic process of numerous oxidizing enzymes. It can be promoted by organic radicals or by metal-oxo species. The essential chemical features of these processes are briefly summarized in this review. Radical enzymes are a fascinating class of enzymes particularly suited for H-atom abstraction. Some examples are depicted herein. A special emphasis is devoted to galactose oxidase in which the active species is a tyrosyl radical coupled to a copper(II) centre. Selected biomimetic models are also discussed. To cite this article: J.-L. Pierre, F. Thomas, C. R. Chimie 8 (2005) .
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