A mild, one-pot Stadler–Ziegler synthesis of arylsulfides facilitated by photoredox catalysis in batch and continuous-flow

Visible advance: A mild, one-pot Stadler–Ziegler process for CS bond formation has been developed. The method employs the photoredox catalyst [Ru(bpy)3Cl2]·6¿H2O irradiated with visible light. A variety of aryl–alkyl and diaryl sulfides were prepared from readily available arylamines and aryl/alkylthiols in good yields. The use of a photo microreactor led to a significant improvement with respect to safety and efficienc