Photoexcited sulfenylation of C(sp)-H bonds in amides using thiosulfonates

A photoexcited sulfenylation of C(sp 3 )-H bonds in amides is developed for the synthesis of sulfenyl amides using thiosulfonates as a sulfur source. In the presence of easily available and inexpensive Na 2 -eosin Y, TBHP and K 2 CO 3 , various sulfenyl amides can be obtained under the irradiation of blue light at room temperature. Photoexcited organic dye-catalyzed synthesis of sulfenyl amides through a direct sulfenylation of C(sp 3 )-H bonds using thiosulfonates as a sulfur source at room temperature.