Abstract: Electrochemical synthesis is a green, efficient, and sustainable organic synthesis scheme, but its application in undergraduate basic experiments has not been effectively promoted. Sulfoxide compounds are commonly found in functional organic compounds and are also widely used in natural drugs or materials. The research on the synthesis methods of sulfoxide compounds has always been a hot topic in the field of organic synthesis, but traditional methods have many shortcomings. We have developed an electrochemical scheme for selectively oxidizing sulfides to sulfoxides, where sodium chloride plays a dual role: (1) as an electrolyte; (2) as a redox mediator.

Key words: Electrochemistry, Sulfides, Sulfoxides