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:	Majid Vafaeezadeh, Ranja Saynisch, Andrea Lösch, Wolfgang Kleist, Werner R. Thiel
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	mesoporous Janus-type catalyst modified mesoporous silica aqueous-phase oxidation palladium catalyst hydrogen peroxide Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/dc77a2f779d04d0bb0696dff032ae268
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spelling	oai:doaj.org-article:dc77a2f779d04d0bb0696dff032ae2682021-11-11T18:27:43ZFast and Selective Aqueous-Phase Oxidation of Styrene to Acetophenone Using a Mesoporous Janus-Type Palladium Catalyst10.3390/molecules262164501420-3049https://doaj.org/article/dc77a2f779d04d0bb0696dff032ae2682021-10-01T00:00:00Zhttps://www.mdpi.com/1420-3049/26/21/6450https://doaj.org/toc/1420-3049A 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 <sup>13</sup>C and <sup>29</sup>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.Majid VafaeezadehRanja SaynischAndrea LöschWolfgang KleistWerner R. ThielMDPI AGarticlemesoporous Janus-type catalystmodified mesoporous silicaaqueous-phase oxidationpalladium catalysthydrogen peroxideOrganic chemistryQD241-441ENMolecules, Vol 26, Iss 6450, p 6450 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	mesoporous Janus-type catalyst modified mesoporous silica aqueous-phase oxidation palladium catalyst hydrogen peroxide Organic chemistry QD241-441
spellingShingle	mesoporous Janus-type catalyst modified mesoporous silica aqueous-phase oxidation palladium catalyst hydrogen peroxide Organic chemistry QD241-441 Majid Vafaeezadeh Ranja Saynisch Andrea Lösch Wolfgang Kleist Werner R. Thiel Fast and Selective Aqueous-Phase Oxidation of Styrene to Acetophenone Using a Mesoporous Janus-Type Palladium Catalyst
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 <sup>13</sup>C and <sup>29</sup>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.
format	article
author	Majid Vafaeezadeh Ranja Saynisch Andrea Lösch Wolfgang Kleist Werner R. Thiel
author_facet	Majid Vafaeezadeh Ranja Saynisch Andrea Lösch Wolfgang Kleist Werner R. Thiel
author_sort	Majid Vafaeezadeh
title	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_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_sort	fast and selective aqueous-phase oxidation of styrene to acetophenone using a mesoporous janus-type palladium catalyst
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/dc77a2f779d04d0bb0696dff032ae268
work_keys_str_mv	AT majidvafaeezadeh fastandselectiveaqueousphaseoxidationofstyrenetoacetophenoneusingamesoporousjanustypepalladiumcatalyst AT ranjasaynisch fastandselectiveaqueousphaseoxidationofstyrenetoacetophenoneusingamesoporousjanustypepalladiumcatalyst AT andrealosch fastandselectiveaqueousphaseoxidationofstyrenetoacetophenoneusingamesoporousjanustypepalladiumcatalyst AT wolfgangkleist fastandselectiveaqueousphaseoxidationofstyrenetoacetophenoneusingamesoporousjanustypepalladiumcatalyst AT wernerrthiel fastandselectiveaqueousphaseoxidationofstyrenetoacetophenoneusingamesoporousjanustypepalladiumcatalyst
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Fast and Selective Aqueous-Phase Oxidation of Styrene to Acetophenone Using a Mesoporous Janus-Type Palladium Catalyst

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