K2S2O8-mediated metal-free direct C–H functionalization of quinones using arylboronic acids

Abstract

Direct C–H functionalization of quinones with arylboronic acids is achieved using K₂S₂O₈ as the sole and efficient green catalytic system. This method provides a straightforward and sustainable way to construct arylquinones via a radical pathway in moderate to good yields under metal-free conditions.