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Solid Molecular Frustrated Lewis Pairs in a Polyamine Organic Framework for the Catalytic Metal-free Hydrogenation of Alkenes

Willms, Andrea ; Schumacher, Hannah ; Tabassum, Tarnuma ; Qi, Long ; Scott, Susannah L. ; Hausoul, Peter J. C. ; Rose, Marcus (2018)
Solid Molecular Frustrated Lewis Pairs in a Polyamine Organic Framework for the Catalytic Metal-free Hydrogenation of Alkenes.
In: ChemCatChem, 10 (8)
doi: 10.1002/cctc.201701783
Article, Bibliographie

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Abstract

We report for the first time a metal-free heterogeneously catalyzed hydrogenation using a semi-solid frustrated Lewis pair (FLP). The catalyst consists of a solid polyamine organic framework and molecular tris(pentafluorophenyl)borane (BCF) that form a semi-immobilized FLP in situ in the catalytic hydrogenation of diethyl benzylidenemalonate. 11B NMR spectroscopy proves the successful hydrogen activation by the FLP. Furthermore, the B−N interactions between the polyamine and BCF are investigated by IR and solid state NMR spectroscopy. The FLP 1,4-diazabicyclo[2.2.2]octane (DABCO)/BCF, which combines the features of a FLP and a classical Lewis adduct, functions as molecular reference in both, catalysis and characterization. Furthermore, computational studies enable a better insight into the hydrogen activation through DABCO/BCF and polyamine/BCF.

Item Type: Article
Erschienen: 2018
Creators: Willms, Andrea ; Schumacher, Hannah ; Tabassum, Tarnuma ; Qi, Long ; Scott, Susannah L. ; Hausoul, Peter J. C. ; Rose, Marcus
Type of entry: Bibliographie
Title: Solid Molecular Frustrated Lewis Pairs in a Polyamine Organic Framework for the Catalytic Metal-free Hydrogenation of Alkenes
Language: German
Date: 2018
Place of Publication: Weinheim
Publisher: Wiley
Journal or Publication Title: ChemCatChem
Volume of the journal: 10
Issue Number: 8
DOI: 10.1002/cctc.201701783
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Abstract:

We report for the first time a metal-free heterogeneously catalyzed hydrogenation using a semi-solid frustrated Lewis pair (FLP). The catalyst consists of a solid polyamine organic framework and molecular tris(pentafluorophenyl)borane (BCF) that form a semi-immobilized FLP in situ in the catalytic hydrogenation of diethyl benzylidenemalonate. 11B NMR spectroscopy proves the successful hydrogen activation by the FLP. Furthermore, the B−N interactions between the polyamine and BCF are investigated by IR and solid state NMR spectroscopy. The FLP 1,4-diazabicyclo[2.2.2]octane (DABCO)/BCF, which combines the features of a FLP and a classical Lewis adduct, functions as molecular reference in both, catalysis and characterization. Furthermore, computational studies enable a better insight into the hydrogen activation through DABCO/BCF and polyamine/BCF.

Divisions: 07 Department of Chemistry
07 Department of Chemistry > Ernst-Berl-Institut
07 Department of Chemistry > Ernst-Berl-Institut > Fachgebiet Technische Chemie
07 Department of Chemistry > Ernst-Berl-Institut > Fachgebiet Technische Chemie > Technische Chemie II
Date Deposited: 26 Jun 2018 07:13
Last Modified: 19 Feb 2024 08:58
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