Data di Pubblicazione:
2007
Citazione:
New routes to vitamin K3 / O.A. Kholdeeva, O.V. Zalomaeva, A.B. Sorokin, I.D. Ivanchikova, C. Della Pina, M. Rossi. - In: CATALYSIS TODAY. - ISSN 0920-5861. - 121:1/2(2007), pp. 58-64.
Abstract:
New clean and efficient methods for the production of 2-methyl-1,4-naphthoquinone (MNQ, menadione, Vitamin K3) based on the oxidation of 2-methyl-1-naphthol (MNL) with cheap and environmentally benign oxidants, aqueous hydrogen peroxide, tert-butyl hydroperoxide and molecular oxygen, using three types of true heterogeneous catalysts, such as hydrothermally stable mesoporous titanium-silicate Ti-MMM-2, silica supported iron phthalocyanine and supported gold nanoparticles, are reported. Advantages and drawbacks of the catalytic systems are discussed. Surprisingly, non-catalytic oxidation of MNL with molecular oxygen shows superior selectivity and volume yield of MNQ compared to the known catalytic methods.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
2-Methyl-1,4-naphthoquinone; 2-Methyl-1-naphthol; H2O2; Menadione; Molecular oxygen; Tert-butyl hydroperoxide
Elenco autori:
O.A. Kholdeeva, O.V. Zalomaeva, A.B. Sorokin, I.D. Ivanchikova, C. Della Pina, M. Rossi
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