Photocatalytic C-H Azolation of Arenes Using Heterogeneous Carbon Nitride in Batch and Flow.
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Wen, Z., Wan, T., Vijeta, A., Casadevall, C., Buglioni, L., Reisner, E., & Noël, T. (2021). Photocatalytic C-H Azolation of Arenes Using Heterogeneous Carbon Nitride in Batch and Flow.. ChemSusChem https://doi.org/10.1002/cssc.202101767
Funder: China Scholarship Council (CSC)
Funder: Cambridge Trust and Science and Engineering Research Board (SERB) India
Funder: University of Cambridge; Id: http://dx.doi.org/10.13039/501100000735
The functionalization of aryl C(sp2 )-H bonds is a useful strategy for the late-stage modification of biologically active molecules, especially for the regioselective introduction of azole heterocycles to prepare medicinally-relevant compounds. Herein, we describe a practical photocatalytic transformation using a mesoporous carbon nitride (mpg-CNx ) photocatalyst, which enables the efficient azolation of various arenes through direct oxidation. The method exhibits a broad substrate scope and is amenable to the late-stage functionalization of several pharmaceuticals. Due to the heterogeneous nature and high photocatalytic stability of mpg-CNx , the catalyst can be easily recovered and reused leading to greener and more sustainable routes, using either batch or flow processing, to prepare these important compounds of interest in pharmaceutical and agrochemical research.
azolation, carbon nitride, flow chemistry, heterogeneous catalysis, photocatalysis
European Commission Horizon 2020 (H2020) Marie Sk?odowska-Curie actions (890745)
Engineering and Physical Sciences Research Council (EP/P030467/1)
External DOI: https://doi.org/10.1002/cssc.202101767
This record's URL: https://www.repository.cam.ac.uk/handle/1810/329763
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