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Mesoporous graphitic carbon nitride as a heterogeneous organic photocatalyst in the dual catalytic arylation of alkyl bis(catecholato)silicates

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Savateev,  Aleksandr
Aleksandr Savateev, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Antonietti,  Markus
Markus Antonietti, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Citation

Schirmer, T. E., Abdellaoui, M., Savateev, A., Ollivier, C., Antonietti, M., Fensterbank, L., et al. (2022). Mesoporous graphitic carbon nitride as a heterogeneous organic photocatalyst in the dual catalytic arylation of alkyl bis(catecholato)silicates. Organic Letters, 24(13), 2483-2487. doi:10.1021/acs.orglett.2c00529.


Cite as: http://hdl.handle.net/21.11116/0000-000A-2BE2-7
Abstract
Mesoporous graphitic carbon nitride (mpg-CN) is introduced as a heterogeneous photocatalyst to perform dual photoredox- and nickel-catalyzed cross-coupling reactions between alkyl bis(catecholato)silicates as radical precursors and aryl or alkenyl bromides. The synergy between this recyclable photocatalyst and the broadly applied homogeneous nickel complex [Ni(dtbbpy)Br2] gives access to C(sp2)–C(sp3) cross-coupling products in a sustainable fashion. The recycled mpg-CN photocatalyst was analyzed by time-resolved emission spectroscopy and EPR spectroscopy.