Abstract
Unprecedented divergent synthesis of gem-difluorovinylacetic acid and glutaric acid derivatives from α-CF3 alkenes with formate as the carbonyl source was disclosed. The reaction can undergo selective mono- or triple C-F bond cleavage by simply switching the photocatalyst and hydrogen atom transfer (HAT) catalyst under visible-light-induced conditions at room temperature. Foramte acts as both the C1 source and the reductant through the generation of CO2•− species, which underwent Giese radical addition to electron-deficient alkenes to trigger the consecutive C-F bond cleavage and carboxylation process.
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Acknowledgements
This work was supported by the National Natural Science Foundation of China (22001224), the Natural Science Foundation of Jiangsu Province (BK20201014, BK20200106), and the Start-up Funding provided by Xuzhou Medical University. This work was also supported by the Jiangsu Specially-Appointed Professor Program (Xu Zhu) and Jiangsu Province Shuangchuang PhD Program (Pei Xu, JSSCBS20211267). The Public Experimental Research Centre of Xuzhou Medical University was also acknowledged.
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Divergent defluorocarboxylation of α-CF3 alkenes with formate via photocatalyzed selective mono- or triple C-F bond cleavage
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Wang, XY., Xu, P., Liu, WW. et al. Divergent defluorocarboxylation of α-CF3 alkenes with formate via photocatalyzed selective mono- or triple C-F bond cleavage. Sci. China Chem. 67, 368–373 (2024). https://doi.org/10.1007/s11426-023-1731-x
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DOI: https://doi.org/10.1007/s11426-023-1731-x