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- W3211311805 abstract "Background: Halogenated furanones have been found to act as potent quorum sensing inhibitors in several bacterial species. It is believed that dihalofuranones covalently bind to the LuxS enzyme, which is necessary for autoinducer-2 synthesis. In addition to their antimicrobial activity, halogenated furanones also possess anti-cancer, antioxidant, and depigmentation properties. However, traditional routes to these compounds are low-yielding and capricious. Objective: The aim of this study was to investigate higher-yielding preparations of gemdihalofuranones and compare their reactivity using Suzuki chemistry. Methods: Ramirez dibromoolefination of maleic anhydride was optimised using a variety of conditions. A similar route was investigated for the preparation of bromofluorofuranones and dichlorofuranones. The conversion of a dichlorofuranone to the corresponding iodofuranone derivatives using microwave-assisted Finkelstein chemistry was also studied. Lastly, the reactivity of the different dihalofuranones was compared by Pd-mediated coupling with phenylboronic acid. Results: A higher-yielding, concise synthesis of dibromofuranones was developed using a modified Ramirez reaction. Additionally, a telescoped preparation of dichlorofuranone was higher yielding than previous approaches. Bromine- and iodine-substituted dihalofuranones proved more reactive than their chlorine-substituted analogues. Conclusion: Higher yielding routes to bromine-, fluorine-, chlorine- and iodine-containing dihalofuranones were successfully developed. Suzuki couplings of gem-dihalofuranones were found to proceed with high stereoselectivity." @default.
- W3211311805 created "2021-11-08" @default.
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- W3211311805 date "2022-08-01" @default.
- W3211311805 modified "2023-09-27" @default.
- W3211311805 title "Synthesis and Reactivity of Dihalofuranones" @default.
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- W3211311805 doi "https://doi.org/10.2174/1570178618666211027103633" @default.
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