We present a method for the synthesis of substituted indolo[1,2-a]quinoline-5(6H)-ones starting from 1-(2-ethynylphenyl)-1H-indoles. The transformation involves gold-catalyzed oxidation of the triple bond followed by acid-promoted intramolecular c...
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CO‐Boosted Protocol for the Photocatalytic C‐H Thiolation of Aldehydes Using Phenylthiobenzenesulfonate
European Journal of Organic Chemistry, März 2024, DOI. Login für Volltextzugriff.
Von Wiley-VCH zur Verfügung gestellt
The formyl C-H thiolation of aldehydes using thiosulfonates using the decatungstate anion as a photocatalyst is reported. Using this photocatalytic protocol, both aromatic and aliphatic thioesters can be synthesized in good yields. The transformation consists of a cascade of double SH2 reactions, HAT and an ArS group transfer, and the yields are improved when the reaction is carried out in a CO atmosphere, which serves to limit the extent of decarbonylation acyl radicals that are generated in the reaction.
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