One electron oxidation of benzyltrialkylsilanes catalysed by lignin peroxidase: comparison with the oxidation induced by chemical oxidants (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• One electron oxidation of benzyltrialkylsilanes catalysed by lignin peroxidase: comparison with the oxidation induced by chemical oxidants (Articolo in rivista) (literal)

Anno

• 2003-01-01T00:00:00+01:00 (literal)

Alternative label

• Gerini M. F., Lanzalunga O. (2003)
  One electron oxidation of benzyltrialkylsilanes catalysed by lignin peroxidase: comparison with the oxidation induced by chemical oxidants
  in Biochemical and biophysical research communications (Print)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Gerini M. F., Lanzalunga O. (literal)

Pagina inizio

• 567 (literal)

Pagina fine

• 571 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 303 (literal)

Rivista

• Biochemical and biophysical research communications (Rivista)

Note

• ISI Web of Science (WOS) (literal)

Titolo

• One electron oxidation of benzyltrialkylsilanes catalysed by lignin peroxidase: comparison with the oxidation induced by chemical oxidants (literal)

Abstract

• Lignin peroxidase catalyses the H2O2-induced oxidation of 4-methoxybenzyltrimethylsilane by an electron transfer mechanism. The intermediate radical cation undergoes preferentially Ca–H deprotonation to give 4-methoxybenzaldehyde whereas Ca–Si bond cleavage is a minor fragmentation pathway and leads to 4-methoxybenzyl alcohol. Similar results are obtained in the oxidation catalysed by the water soluble model compound 5,10,15,20-tetra(N-methyl-4-pyridyl)porphyrinatoiron(III) pentachloride. Instead, in the oxidation promoted by the genuine one-electron transfer oxidant potassium dodecatungstocobalt(III)ate Ca–Si bond cleavage is the exclusive fragmentation process of the intermediate radical cation. It is suggested that in the enzymatic and biomimetic oxidations of 4-methoxybenzyltrimethylsilane the deprotonation of the intermediate radical cation is promoted by the reduced form [PorFe+.(IV)=O] of the active oxidant, which is an iron-oxo porphyrin radical cation. (literal)

Prodotto di

• Istituto di metodologie chimiche (IMC) (Istituto)

Incoming links:

Prodotto

• Istituto di metodologie chimiche (IMC) (Istituto)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Biochemical and biophysical research communications (Rivista)