Meerwein-type Bromoarylation with Arylthianthrenium Salts

Herein, we report a photocatalyzed Meerwein-type bromoarylation of alkenes with stable arylthianthrenium salts, formed by site-selective C-H thianthrenation. This protocol can be applied to late-stage functionalization of a variety of biomolecules that are difficult to access by other aryl coupling reagents. Halogen introduction allows for a variety of follow-up transformations, affording numerous biologically active skeletons.

Automated summary

This study presents a photocatalyzed Meerwein-type bromoarylation of alkenes using stable arylthianthrenium salts, which are formed through site-selective C-H thianthrenation. This method allows for late-stage functionalization of biomolecules that are typically inaccessible with other aryl coupling reagents.