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| Title: | Visible-Light Mediated Metal-free Synthesis of 3-Bromo Coumarins Using In situ Generated Transient Non-Symmetric Bromoiodanes |
| Authors: | Bajya, Kalu Ram Sermadurai, Selvakumar |
| Keywords: | Bromocyclization;Hypervalent iodine reagent;Photolysis;Radicals;Visible light |
| Issue Date: | 2023 |
| Publisher: | John Wiley and Sons Inc |
| Citation: | Rajput, S., Kaushik, V., Babu, P., Pandey, S. K., & Kumar, M. (2023). All optical modulation in vertically coupled indium tin oxide ring resonator employing epsilon near zero state. Scientific Reports. Scopus. https://doi.org/10.1038/s41598-023-44438-3 |
| Abstract: | We report herein the in situ generated transient non-symmetric bromoiodanes promoted regioselective intramolecular halocyc-lization of alkynoates for the first time under visible light irradiation enables the formation of 4-aryl-3-bromocoumarin derivatives. Using this protocol, a broad range of valuable brominated coumarins can be synthesized in moderate to excellent yield using simple household CFL bulb as light source under photocatalyst free condition. In addition, preliminary control studies were conducted to gain more insights to propose the plausible reaction mechanism. © 2023 Wiley-VCH GmbH. |
| URI: | https://doi.org/10.1002/slct.202300496 https://dspace.iiti.ac.in/handle/123456789/12924 |
| ISSN: | 2365-6549 |
| Type of Material: | Journal Article |
| Appears in Collections: | Department of Chemistry |
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