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Issue 46, 2012
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Highly active mesoporous chromium silicate catalysts in side-chain oxidation of alkylaromatics

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Abstract

We approach a green method in the production of alkylaromatic ketones over hexagonally ordered mesoporous CrSBA-15 catalysts, which were used, in green routes, in the liquid-phase oxidation of alkylaromatics. A promising chemical treatment method was used with ammonium acetate solution to remove the toxic nature of non-framework chromium oxides deposited on the surface of calcined CrSBA-15(8), and the obtained green mesoporous CrSBA-15(8) catalyst was used to find its catalytic activity while the recyclability of mesoporous CrSBA-15 catalysts was also studied. Particularly, the mesoporous CrSBA-15 catalysts synthesized with a variety of chromium contents were extensively used in the production of acetophenone (AP[double bond, length as m-dash]O) with various reaction parameters. On the basis of all catalytic results, the mesoporous CrSBA-15(8) catalyst produced a higher selectivity of alkylaromatic ketones (76–100%) as compared to other CrSBA-15 catalysts and was found to be a highly active, recyclable and promising heterogeneous catalyst for selective synthesis of alkylaromatic ketones.

Graphical abstract: Highly active mesoporous chromium silicate catalysts in side-chain oxidation of alkylaromatics

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Publication details

The article was received on 16 Jul 2012, accepted on 12 Sep 2012 and first published on 12 Oct 2012


Article type: Paper
DOI: 10.1039/C2DT31571H
Citation: Dalton Trans., 2012,41, 14204-14210
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    Highly active mesoporous chromium silicate catalysts in side-chain oxidation of alkylaromatics

    M. Selvaraj, D.-W. Park, I. Kim, S. Kawi and C. S. Ha, Dalton Trans., 2012, 41, 14204
    DOI: 10.1039/C2DT31571H

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