Fast and Selective Aqueous-Phase Oxidation of Styrene to Acetophenone Using a Mesoporous Janus-Type Palladium Catalyst

A heterogeneous Janus-type palladium interphase catalyst was obtained by selective surface modification of a hollow mesoporous silica material. The catalyst comprises hydrophobic octyl groups on one side of the silica nanosheets and single-site bis-imidazoline dichlorido palladium(II) complexes on t...

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Autores principales: Vafaeezadeh, Majid, Saynisch, Ranja, Lösch, Andrea, Kleist, Wolfgang, Thiel, Werner R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8586932/
https://www.ncbi.nlm.nih.gov/pubmed/34770859
http://dx.doi.org/10.3390/molecules26216450
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author Vafaeezadeh, Majid
Saynisch, Ranja
Lösch, Andrea
Kleist, Wolfgang
Thiel, Werner R.
author_facet Vafaeezadeh, Majid
Saynisch, Ranja
Lösch, Andrea
Kleist, Wolfgang
Thiel, Werner R.
author_sort Vafaeezadeh, Majid
collection PubMed
description A heterogeneous Janus-type palladium interphase catalyst was obtained by selective surface modification of a hollow mesoporous silica material. The catalyst comprises hydrophobic octyl groups on one side of the silica nanosheets and single-site bis-imidazoline dichlorido palladium(II) complexes on the other. The structure of this composite material has been analyzed by means of elemental analysis, atomic absorption spectroscopy, BET surface analysis, TGA, SEM and solid-state CP-MAS (13)C and (29)Si NMR spectroscopy. The catalyst showed extraordinary activity for the aqueous-phase oxidation of styrene to acetophenone using 30% hydrogen peroxide as the oxidant. An 88% yield of acetophenone could be achieved after 60 min.
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spelling pubmed-85869322021-11-13 Fast and Selective Aqueous-Phase Oxidation of Styrene to Acetophenone Using a Mesoporous Janus-Type Palladium Catalyst Vafaeezadeh, Majid Saynisch, Ranja Lösch, Andrea Kleist, Wolfgang Thiel, Werner R. Molecules Article A heterogeneous Janus-type palladium interphase catalyst was obtained by selective surface modification of a hollow mesoporous silica material. The catalyst comprises hydrophobic octyl groups on one side of the silica nanosheets and single-site bis-imidazoline dichlorido palladium(II) complexes on the other. The structure of this composite material has been analyzed by means of elemental analysis, atomic absorption spectroscopy, BET surface analysis, TGA, SEM and solid-state CP-MAS (13)C and (29)Si NMR spectroscopy. The catalyst showed extraordinary activity for the aqueous-phase oxidation of styrene to acetophenone using 30% hydrogen peroxide as the oxidant. An 88% yield of acetophenone could be achieved after 60 min. MDPI 2021-10-26 /pmc/articles/PMC8586932/ /pubmed/34770859 http://dx.doi.org/10.3390/molecules26216450 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Vafaeezadeh, Majid
Saynisch, Ranja
Lösch, Andrea
Kleist, Wolfgang
Thiel, Werner R.
Fast and Selective Aqueous-Phase Oxidation of Styrene to Acetophenone Using a Mesoporous Janus-Type Palladium Catalyst
title Fast and Selective Aqueous-Phase Oxidation of Styrene to Acetophenone Using a Mesoporous Janus-Type Palladium Catalyst
title_full Fast and Selective Aqueous-Phase Oxidation of Styrene to Acetophenone Using a Mesoporous Janus-Type Palladium Catalyst
title_fullStr Fast and Selective Aqueous-Phase Oxidation of Styrene to Acetophenone Using a Mesoporous Janus-Type Palladium Catalyst
title_full_unstemmed Fast and Selective Aqueous-Phase Oxidation of Styrene to Acetophenone Using a Mesoporous Janus-Type Palladium Catalyst
title_short Fast and Selective Aqueous-Phase Oxidation of Styrene to Acetophenone Using a Mesoporous Janus-Type Palladium Catalyst
title_sort fast and selective aqueous-phase oxidation of styrene to acetophenone using a mesoporous janus-type palladium catalyst
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8586932/
https://www.ncbi.nlm.nih.gov/pubmed/34770859
http://dx.doi.org/10.3390/molecules26216450
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