Herein, we report the sustainable semiheterogeneous synthesis of various fluoroalkylated N-heteroarenes using natural intrinsic iron(II) titanium oxide (FeTiO3) as a semiconductor photocatalyst and Ph3N as a redox mediator. This synergistic system combines photogenerated electron-mediated fluoroalkyl sulfonyl chloride (RfSO2Cl) reduction with photogenerated hole-induced oxidative dehydrogenation aromatization, enabling high-yielding transformations with excellent functional-group tolerance while avoiding stoichiometric redox reagents or sacrificial electron donors/acceptors.
Peng et al. (Thu,) studied this question.