A simple and convenient visible-light-induced difunctionalization of alkenes with ammonium thiocyanate and dioxygen has been developed at room temperature. A series of α-thiocyanato ketones could be easily and efficiently obtained in moderate to good yields through the formation of C–S and C=O bonds simply by using nontoxic and inexpensive Na2-Eosin Y as a photocatalyst.
Key words
visible-light catalysis - difunctionalization - alkenes - ammonium thiocyanate - α-thiocyanato ketones