Olefin‐Dependent Discrimination between Two Nonheme HOFe V O Tautomeric Species in Catalytic H 2 O 2 Epoxidations
2009; Wiley; Volume: 15; Issue: 14 Linguagem: Inglês
10.1002/chem.200802597
ISSN1521-3765
AutoresAnna Company, Yan Feng, Mireia Güell, Xavi Ribas, Josep M. Luis, Lawrence Que, Miguel Costas,
Tópico(s)Metalloenzymes and iron-sulfur proteins
ResumoWet oxygenase models: Unprecedented high levels of water incorporation into products (up to 75%) is observed in epoxidation reactions with H(2)O(2) by a bioinspired nonheme iron catalyst. A surprising substrate-dependent incorporation of water is observed, and is proposed to arise from fast equilibrium between two high-valent HO-Fe(V)=O isomeric species exhibiting different reactivity.
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