| Title: |
Furan-Indole-Chromenone-Based Organic Photocatalyst for α-Arylation of Enol Acetate and Free Radical Polymerization Under LED Irradiation |
| Authors: |
Galibert-Guijarro, Aurélien; Noon, Adel; Toufaily, Joumana; Hamieh, Tayssir; Besson, Eric; Gastaldi, Stéphane; Lalevée, Jacques; Feray, Laurence |
| Source: |
Galibert-Guijarro, A, Noon, A, Toufaily, J, Hamieh, T, Besson, E, Gastaldi, S, Lalevée, J & Feray, L 2025, 'Furan-Indole-Chromenone-Based Organic Photocatalyst for α-Arylation of Enol Acetate and Free Radical Polymerization Under LED Irradiation', Molecules, vol. 30, no. 2, 265. https://doi.org/10.3390/molecules30020265 |
| Publication Year: |
2025 |
| Collection: |
Maastricht University Research Publications |
| Subject Terms: |
alkene arylation; free radical polymerization; organic photocatalyst; photoinduced electron transfer; photoredox catalysis; redox potential |
| Description: |
In this study we report on the efficiency of a furane-indole-chromenone-based organic derivative ( ) as a photocatalyst in the a-arylation of enol acetate upon LED irradiation at 405 nm, and as a photoinitiator/photocatalyst in the free radical polymerization of an acrylate group in the presence of -(4- -butylphenyl)iodonium hexafluorophosphate (Iod) as an additive, or in the presence of both Iod and ethyl-4-(dimethyl amino) benzoate (EDB) under LED irradiation at 365 nm. The photochemical properties of this new light-sensitive compound are described, and the wide redox window (3.27 eV) and the high excited-state potentials / (+2.64 V vs. SCE) and / (-2.41 V vs. SCE) offered by this photocatalyst are revealed. The chemical mechanisms that govern the radical chemistry are discussed by means of different techniques, including fluorescence-quenching experiments, UV-visible absorption and fluorescence spectroscopy, and cyclic voltammetry analysis. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| ISSN: |
1420-3049 |
| Relation: |
info:eu-repo/semantics/altIdentifier/pissn/1420-3049 |
| DOI: |
10.3390/molecules30020265 |
| Availability: |
https://cris.maastrichtuniversity.nl/en/publications/5107953c-336d-4e00-875e-d93f85173e53; https://doi.org/10.3390/molecules30020265 |
| Rights: |
info:eu-repo/semantics/openAccess ; http://creativecommons.org/licenses/by/4.0/ |
| Accession Number: |
edsbas.42E7560B |
| Database: |
BASE |