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Biosourced Polymetallic Catalysis: A Surprising and Efficient Means to Promote the Knoevenagel Condensation
Zn hyperaccumulator (Arabidobsis halleri) and Zn accumulator Salix “Tordis” (Salix schwerinii × Salix viminalis) have shown their interest in the phytoextraction of polluted brownfields. Herein, we explore a novel methodology based on the chemical valorization of Zn-rich biomass produced by these me...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Frontiers Media S.A.
2018
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5881248/ https://www.ncbi.nlm.nih.gov/pubmed/29637065 http://dx.doi.org/10.3389/fchem.2018.00048 |
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author | Deyris, Pierre-Alexandre Bert, Valérie Diliberto, Sébastien Boulanger, Clotilde Petit, Eddy Legrand, Yves-Marie Grison, Claude |
author_facet | Deyris, Pierre-Alexandre Bert, Valérie Diliberto, Sébastien Boulanger, Clotilde Petit, Eddy Legrand, Yves-Marie Grison, Claude |
author_sort | Deyris, Pierre-Alexandre |
collection | PubMed |
description | Zn hyperaccumulator (Arabidobsis halleri) and Zn accumulator Salix “Tordis” (Salix schwerinii × Salix viminalis) have shown their interest in the phytoextraction of polluted brownfields. Herein, we explore a novel methodology based on the chemical valorization of Zn-rich biomass produced by these metallophyte plants. The approach is based on the use of polymetallic salts derived from plants as bio-based catalysts in organic chemistry. The formed ecocatalysts were characterized via ICP-MS, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) in order to precise the chemical composition, structure, and behavior of the formed materials. The Doebner-Knoevenagel reaction was chosen as model reaction to study their synthetic potential. Significant differences to usual catalysts such as zinc (II) chloride are observed. They can principally be related to a mixture of unusual mineral species. DFT calculations were carried out on these salts in the context of the Gutmann theory. They allow the rationalization of experimental results. Finally, these new bio-based polymetallic catalysts illustrated the interest of this concept for green and sustainable catalysis. |
format | Online Article Text |
id | pubmed-5881248 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-58812482018-04-10 Biosourced Polymetallic Catalysis: A Surprising and Efficient Means to Promote the Knoevenagel Condensation Deyris, Pierre-Alexandre Bert, Valérie Diliberto, Sébastien Boulanger, Clotilde Petit, Eddy Legrand, Yves-Marie Grison, Claude Front Chem Chemistry Zn hyperaccumulator (Arabidobsis halleri) and Zn accumulator Salix “Tordis” (Salix schwerinii × Salix viminalis) have shown their interest in the phytoextraction of polluted brownfields. Herein, we explore a novel methodology based on the chemical valorization of Zn-rich biomass produced by these metallophyte plants. The approach is based on the use of polymetallic salts derived from plants as bio-based catalysts in organic chemistry. The formed ecocatalysts were characterized via ICP-MS, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) in order to precise the chemical composition, structure, and behavior of the formed materials. The Doebner-Knoevenagel reaction was chosen as model reaction to study their synthetic potential. Significant differences to usual catalysts such as zinc (II) chloride are observed. They can principally be related to a mixture of unusual mineral species. DFT calculations were carried out on these salts in the context of the Gutmann theory. They allow the rationalization of experimental results. Finally, these new bio-based polymetallic catalysts illustrated the interest of this concept for green and sustainable catalysis. Frontiers Media S.A. 2018-03-27 /pmc/articles/PMC5881248/ /pubmed/29637065 http://dx.doi.org/10.3389/fchem.2018.00048 Text en Copyright © 2018 Deyris, Bert, Diliberto, Boulanger, Petit, Legrand and Grison. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Chemistry Deyris, Pierre-Alexandre Bert, Valérie Diliberto, Sébastien Boulanger, Clotilde Petit, Eddy Legrand, Yves-Marie Grison, Claude Biosourced Polymetallic Catalysis: A Surprising and Efficient Means to Promote the Knoevenagel Condensation |
title | Biosourced Polymetallic Catalysis: A Surprising and Efficient Means to Promote the Knoevenagel Condensation |
title_full | Biosourced Polymetallic Catalysis: A Surprising and Efficient Means to Promote the Knoevenagel Condensation |
title_fullStr | Biosourced Polymetallic Catalysis: A Surprising and Efficient Means to Promote the Knoevenagel Condensation |
title_full_unstemmed | Biosourced Polymetallic Catalysis: A Surprising and Efficient Means to Promote the Knoevenagel Condensation |
title_short | Biosourced Polymetallic Catalysis: A Surprising and Efficient Means to Promote the Knoevenagel Condensation |
title_sort | biosourced polymetallic catalysis: a surprising and efficient means to promote the knoevenagel condensation |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5881248/ https://www.ncbi.nlm.nih.gov/pubmed/29637065 http://dx.doi.org/10.3389/fchem.2018.00048 |
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