Oxidation Reactions of Marchantin A Trimethyl Ether and Some Aromatic Compounds Using m-Chloroperbenzoic Acid. Formation of Muconic Acid Ester and m-Chlorobenzoate
Activation of Chelated Catecholatoiron Species for Catalytic Oxygenation of Catechols by Catecholdioxygenase-model Iron Complexes
Reactivity of the isolated catecholatoiron complex with O2 and the spectroscopic observation of the reversible catecholate ligand exchange reveal that a stable chelated catecholate species may be activated to be reactive with O2 in the catalytic system.
Catalytic Oxidation of Phenols to p-Quinones with the Hydrogen Peroxide and Methyltrioxorhenium(VII) System
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Adam, Waldemar,Herrmann, Wolfgang A.,Lin, Jianhua,Saha-Moeller, Chantu R.
p. 8281 - 8283
(2007/10/02)
Extradiol Oxygenation of 3,5-Di-tert-butylcatechol with O2 by Iron Chlorides in Tetrahydrofuran-Water as a Model Reaction for Catechol-2,3-dioxygenases
Selective extradiol oxygenation of 3,5-di-tert-butylcatechol 1 with O2 catalysed by Fe2+ is achieved in THF in the presence of water; the different selectivity obtained by FeCl2 and FeCl3 in THF-H2O and THF-pyridine supports the explanation of the intra- and extra-diol oxygenations by Fe3+ and Fe2+, respectively, as proposed in the enzymatic systems.
Oxidation of catechol and of 2,6-di-tert butylphenol by dioxiranes
In a biomimetic transformation, the selective oxidation of catechol (2) to Z,Z-muconic acid (3) has been achieved under extremely mild conditions using methyl(trifluoromethyl)dioxirane (1b). Both dioxirane 1b and dimethyldioxirane (1a) have been applied to the oxidation of 2,6-di-tert-butylphenol (4); the product natures suggest the incursion of radical pathways.
Altamura,Fusco,D'Accolti,Mello,Prencipe,Curci
p. 5445 - 5448
(2007/10/02)
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