Decarbonylation of benzaldehydes by dual photoorgano-cobalt catalysis.

Daniel Kolb, Martin Morgenstern, Burkhard König

Chemical communications (Cambridge, England) 2023 Jul 06

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We report a mild alternative to thermally-driven noble-metal catalyzed decarbonylation protocols for the defunctionalization of benzaldehydes in short reaction times. Our cooperative photocatalytic system involves thioxanthone as an inexpensive HAT-agent and a cobalt complex required for selective C(sp2)-C(sp2) bond cleavage. The generated acyl and phenyl intermediates are postulated to be stabilized as cobalt complexes.

Citation

Daniel Kolb, Martin Morgenstern, Burkhard König. Decarbonylation of benzaldehydes by dual photoorgano-cobalt catalysis. Chemical communications (Cambridge, England). 2023 Jul 06;59(55):8592-8595