Tsutskiridze, Armaz and Kralova, Dana and Ghosh, Indrajit and Koenig, Burkhard (2025) Merocyanine-based photoacids as recyclable catalysts in visible-light-driven transformations. CHEMICAL COMMUNICATIONS, 61 (36). pp. 6651-6654. ISSN 1359-7345, 1364-548X
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Visible light-driven proton transfer is crucial in nature and catalysis. Here, we report that protic merocyanine-based photoswitches act as efficient and recyclable homogeneous Br & oslash;nsted acid catalysts under blue or green light irradiation. Photo-promoted proton release efficiently enables Friedel-Crafts reactions with easy catalyst recovery and reuse. Furthermore, by leveraging the high two-photon absorption cross-section of merocyanines, we successfully promote the reaction using near-IR light (lambda similar to 975 nm).
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | 2-PHOTON ABSORPTION; STATE; SPIROPYRAN; DESIGN |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Organische Chemie > Lehrstuhl Prof. Dr. Burkhard König |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 05 May 2026 06:49 |
| Last Modified: | 05 May 2026 06:49 |
| URI: | https://pred.uni-regensburg.de/id/eprint/66657 |
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