Intermolecular Anti-Markovnikov Hydroamination of Alkenes with Sulfonamides, Sulfamides, and Sulfamates.

ABSTRACT: A general method for the light-driven intermolecular anti-Markovnikov hydroamination of alkenes with primary sulfonamides, sulfamides, and sulfamates is presented. The reaction is mediated by a ternary catalyst system composed of an iridium(III) chromophore, a fluorinated alkoxide base, and a thiol H-atom donor. We hypothesize that the reactions proceed through a proton coupled electron-transfer (PCET) mechanism wherein implementation of the alkoxide base imparts additional thermochemical driving force for the homolytic activation of strong N-H bonds that were previously inaccessible using this methodology. This furnishes electrophilic N-centered radicals that subsequently interface with a wide range of unactivated alkenes for C-N bond formation. This protocol exhibits a broad subst

SUBMITTER: Lin A 

PROVIDER: S-EPMC11804897 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature