Research Progress on the Construction of C—S Bond Using Aryl Disulfides as Radical Sulfur Reagents

Sulfur-containing compounds have been widely applied in numerous natural products, pharmaceuticals, agrochemicals, and organic functional materials, which has attracted great interest among researchers.Therefore, it is of great significance to develop efficient and green methods for the construction and transformation of sulfur-containing compounds.In recent years, stable and low-toxicity aryl disulfides have been used as ideal substitutes for thiol compounds endured with strong irritation and toxicity, which has opened up a new path for the construction of various sulfur-containing compounds.In this paper, the research progress of aryl disulfides as radical sulfur reagents to build C-S bond is reviewed, which is divided into three parts: photocatalysis, non-metallic participation, and transition metal catalysis.