Organic sulfides are of great importance as efficient intermediates for the synthesis of a diverse range of biological, pharmaceutical and natural active molecules as well as valuable synthetic compounds. The deoxygenation of sulfoxides to their corresponding sulfides is among one of the most fundamental processes and transformations in organic synthetic chemistry. In recent times, from 2004 to 2016, various research groups exploited transition metal complexes, electrophilic reagents and Lewis acids as the promoter and catalyst or reducing agent for the reduction of sulfoxides to the corresponding sulfides. In this review, we have summarized and studied recently reported synthetic protocols in the arena of transformation of sulfoxides into organic sulfides.
