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

Morad, Moataz, Nowicka, Ewa ORCID: https://orcid.org/0000-0001-7449-2720, Douthwaite, John, Iqbal, Sarwat, Miedziak, Peter, Edwards, Jennifer ORCID: https://orcid.org/0000-0003-4089-2827, Brett, Gemma, He, Qian ORCID: https://orcid.org/0000-0003-4891-3581, Knight, David, Morgan, David ORCID: https://orcid.org/0000-0002-6571-5731, Alshammari, Hammed, Bethell, Donald, Sankar, Meenakshisundaram ORCID: https://orcid.org/0000-0002-7105-0203 and Hutchings, Graham ORCID: https://orcid.org/0000-0001-8885-1560 2017. Multifunctional supported bimetallic catalysts for a cascade reaction with hydrogen auto transfer: synthesis of 4-phenylbutan-2-ones from 4-methoxybenzyl alcohols. Catalysis Science & Technology 7 (9) , pp. 1928-1936. 10.1039/C7CY00184C

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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.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Cardiff Catalysis Institute (CCI) Chemistry
Subjects:	Q Science > QD Chemistry
Publisher:	Royal Society of Chemistry
ISSN:	2044-4753
Funders:	EPSRC
Date of First Compliant Deposit:	29 March 2017
Date of Acceptance:	26 March 2017
Last Modified:	07 Nov 2024 22:23
URI:	https://orca.cardiff.ac.uk/id/eprint/99477

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