Direct Coupling of Naphthalene and Sulfonimides Promoted by DDQ and Blue Light

Aromatic C–H amination chemistry has attracted significant attention as an alternative to conventional amination of aryl halides. Among C–H amination reactions, dehydrogenative coupling of arenes and N–H reagents represents an ideal transformation because prefunctionalization steps of arenes or aminating reagents are not required. Herein, we report direct C–H/N–H coupling between naphthalene and sulfonimides mediated by 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ) as a photosensitizer under irradiation of blue light.