Semiheterogeneous Intrinsic FeTiO3-Photoredox/Ph3N Dual-Catalyzed Fluoroalkylation of N-Heteroarenes with Alkenes and
Qiong-Hui Peng1, Ying-Li Cai1, Hui Dai1
1School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China.
Abstract:
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.
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