A mild, practical, and environmentally friendly route to vinyl sulfones and sulfonamides has been developed based on the reaction of aliphaticamines with arenesulfonyl chlorides in the presence of eosin Y as a photocatalyst under visible light. The method permits the selective formation of vinyl sulfones or sulfonamides, depending on the oxidation environment and solvent. A wide range of products
reductive elimination of the C–X bond. These reactions enable the synthesis of aryliodides, bromides, and chlorides using alkali metal halides. Regarding the reaction mechanism, the Xantphos ligand emerges as a crucial factor in promoting reductive elimination, leading to the formation of a stablePd(0) intermediate and an oxidative adduct trans-(Xantphos)Pd(ArCO)X. Two proposed mechanisms involve Xantphos-promoted