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Control of the Chemoselectivity in the Oxidation of Geraniol Over Lanthanum, Titanium and Niobium Catalysts Supported on Mesoporous Silica MCM-41

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Abstract

The selective catalytic oxidation of geraniol with hydrogen peroxide over lanthanum, titanium and niobium catalysts supported on mesoporous silica MCM-41 has been investigated. Among the various catalysts studied, Nb-MCM-41 showed an excellent selectivity for allylic epoxide. In contrast, La-MCM-41 and Ti-MCM-41 catalysts exhibited high selectivity to citral. Catalyst’s characterization and activity results clearly demonstrated that the differences in the product distribution were due to the presence of different acid sites and the better coordination of oxidant with the catalyst used. All the catalysts were characterized by nitrogen adsorption–desorption isotherms at 77 K, TPD-pyridine and XRD.

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Acknowledgments

We thank COLCIENCIAS-SENA and DIN-UPTC for the financial support under the project Nº 110948925094.

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Authors and Affiliations

  1. Johnson Matthey Catalysts Inc., Chemicals, Catalysts & Refining, 1246 Airport Road, Sevierville, TN, 37862, USA

    N. Marin-Astorga

  2. Grupo de Catálisis, Escuela de Ciencias Químicas, Universidad Pedagógica y Tecnológica de Colombia UPTC, Avenida Central del Norte, Vía Paipa, Tunja, Boyacá, Colombia

    J. J. Martinez, G. Borda, J. Cubillos, D. N. Suarez & H. Rojas

Authors
  1. N. Marin-Astorga
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  2. J. J. Martinez
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  3. G. Borda
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  4. J. Cubillos
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  5. D. N. Suarez
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  6. H. Rojas
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Correspondence to N. Marin-Astorga or H. Rojas.

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Marin-Astorga, N., Martinez, J.J., Borda, G. et al. Control of the Chemoselectivity in the Oxidation of Geraniol Over Lanthanum, Titanium and Niobium Catalysts Supported on Mesoporous Silica MCM-41. Top Catal 55, 620–624 (2012). https://doi.org/10.1007/s11244-012-9840-0

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  • DOI: https://doi.org/10.1007/s11244-012-9840-0

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