Abstract A visible-light induced metal-free approach was described for the hydroxyalkylation of 2H-benzothiazoles with alcohols by using selectfluor as the oxidant. A variety of 2H-benzothiazoles and alcohols could be tolerated, providing a mild and simple method for the synthesis of C2-hydroxyalkylated 2H-benzothiazoles in moderate to good yields. Besides, ethers were also compatible in this reaction
Hydroxyalkylated N-heteroaromatics are interesting scaffolds in a wide range of biologically active natural molecules. Herein, a photoredox-catalyzed hydroxyalkylation method for azole derivatives with aldehydes in the aqueous phase under an air atmosphere has been established. Furthermore, our catalytic system is also suitable for the alkylation of azole derivatives with alkanes. This methodology