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

Moataz Morad, Moataz Morad, Ewa Nowicka, Mark Douthwaite, Sarwat Iqbal, Peter Miedziak, Jennifer K. Edwards, Gemma L. Brett, Qian He, David Morgan, Hamed Alshammari, Hamed Alshammari, Donald Bethell, David W. Knight, Meenakshisundaram Sankar, Graham J. Hutchings

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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 CC. 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.
Original languageEnglish
Pages (from-to)1928-1936
Number of pages9
JournalCatalysis Science and Technology
Volume7
Issue number9
Early online date28 Mar 2017
DOIs
Publication statusPublished - 2017

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