Abstract
Oxidation of silanes into silanols using water/air has attracted considerable attention. The known methods with no exception required a metal catalyst. Herein we report the first metal-free method: 2 mol% Rose Bengal as the catalyst, air (O2) as the oxidant, water as the additive and under visible light irradiation. While this method produces various silanols in a simple, cost-effective, efficient (92%–99% yields) and scalable fashion, its reaction mechanism is very different than the reported ones associated with metal catalysis.
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Acknowledgements
This work was supported by the National Key R&D Program of China (2017YFA0505200) and the National Natural Science Foundation of China (21625104, 21521091).
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Wang, J., Li, B., Liu, LC. et al. Metal-free visible-light-mediated aerobic oxidation of silanes to silanols. Sci. China Chem. 61, 1594–1599 (2018). https://doi.org/10.1007/s11426-018-9289-9
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DOI: https://doi.org/10.1007/s11426-018-9289-9