FeCl3-catalyzed three-component aryl-selenylation of alkenes

FeCl 3 -catalyzed three-component aryl-selenylation of alkenes with good to excellent yields has been disclosed. This method is characterized by synthesis of complicated products in a single-step reaction, simple operation and readily available commercially reagents. Finally, a reasonable mechanism of FeCl 3 -catalyzed aryl-selenylation is proposed.