[reaction: see text] The radicalchainreaction of benzenethiol with alkynylthiol esters provides a new, valuable protocol for the tin-free generation of acylradicals that arise from intramolecular substitution at sulfur by the initial sulfanylvinyl radicals.
The generation of 2-indolylacyl radicals from the corresponding phenyl selenoesters under reductive conditions and their behavior in intramolecularaddition reactions to carbon-carbondoublebonds located at the indole nitrogen have been studied. [reaction: see text]