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Multifunctional supported bimetallic catalysts for a cascade reaction with hydrogen auto transfer: synthesis of 4-phenylbutan-2-ones from 4-methoxybenzyl alcohols

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Abstract

We report the one-pot tandem synthesis of 4-(4-methoxyphenyl)butan-2-one directly from 4-methoxybenzyl alcohol and acetone using a multifunctional supported AuPd nanoalloy catalyst. This one-pot synthesis involves dehydrogenation, aldol condensation and hydrogenation of C[double bond, length as m-dash]C. In this supported AuPd catalyst, the bimetallic sites catalyse the dehydrogenation and hydrogenation steps and, in combination with the support, catalyse the C–C coupling (aldol) process. This supported bimetallic catalyst is also effective in utilizing hydrogen from the dehydrogenation reaction for the hydrogenation of 4-(4-methoxyphenyl)but-3-en-2-one to 4-(4-methoxyphenyl)butane-2-one via a hydrogen auto transfer route. These multifunctional catalysts were characterised using transmission electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy.

Graphical abstract: Multifunctional supported bimetallic catalysts for a cascade reaction with hydrogen auto transfer: synthesis of 4-phenylbutan-2-ones from 4-methoxybenzyl alcohols

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Publication details

The article was received on 29 Jan 2017, accepted on 26 Mar 2017 and first published on 28 Mar 2017


Article type: Paper
DOI: 10.1039/C7CY00184C
Citation: Catal. Sci. Technol., 2017, Advance Article
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    Multifunctional supported bimetallic catalysts for a cascade reaction with hydrogen auto transfer: synthesis of 4-phenylbutan-2-ones from 4-methoxybenzyl alcohols

    M. Morad, E. Nowicka, M. Douthwaite, S. Iqbal, P. Miedziak, J. K. Edwards, G. L. Brett, Q. He, D. Morgan, H. Alshammari, D. Bethell, D. W. Knight, M. Sankar and G. J. Hutchings, Catal. Sci. Technol., 2017, Advance Article , DOI: 10.1039/C7CY00184C

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