Visible-Light-Induced α-Oxyamination of 1,3-Dicarbonyls with TEMPO via a Photo(electro)catalytic Process Applying DSSC Anode or in DSSC System

A green and enviromentally friendly photoelectrocatalytic one-pot method was developed for the α-oxyamination between 1,3-dicarbonyls and TEMPO via a photo(electro)catalytic process using visible light as the energy source. The recovered DSSC anode (photocatalyst) could be used more than 8 times, at the same time, the α-oxyamination reaction proceeding in the DSSC device might be involved in the photoelectrocatalysis process. Mechanistic studies establish that the reaction might undergo both the visible-light-induced radical and the ionic reaction processes.