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<p>Known for its exceptional light-absorbing properties, conjugated organic molecule are capable of efficiently converting solar energy into chemical energy, providing a new avenue for the utilization of renewable energy. In this work, we successfully synthesized and designed a conjugated organic molecule with 4,7-di(9<i>H</i>-carbazol-9-yl)benzo[<i>c</i>][1,2,5]thiadiazole (<b>B2Cz</b>). In trifluoromethylation reactions, <b>B2Cz</b> exhibits unique activity by activating C–H bonds to selectively introduce trifluoromethyl groups. Furthermore, <b>B2Cz</b> acts as a photo-cocatalyst alongside NiBr<sub>2</sub> in C–N coupling reactions, which demonstrated excellent synergistic catalytic effects. This catalytic system not only enhances reaction efficiency but also significantly advances environmental friendliness and sustainability.</p> Graphical Abstract <p></p>

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Unveiling the Synthetic Potential of Conjugated Organic Molecule as Efficient Photo-catalytic Trifluoromethylation and Photo-cocatalytic C–N Coupling Reaction

  • 期刊论文

  • 发表日期：

    2025年1月3日

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  • Yumin Pan,
  • Tingting Xie,
  • Jiming Peng,
  • Cuihui Cao,
  • Bi-Qun Zou

摘要

Known for its exceptional light-absorbing properties, conjugated organic molecule are capable of efficiently converting solar energy into chemical energy, providing a new avenue for the utilization of renewable energy. In this work, we successfully synthesized and designed a conjugated organic molecule with 4,7-di(9H-carbazol-9-yl)benzo[c][1,2,5]thiadiazole (B2Cz). In trifluoromethylation reactions, B2Cz exhibits unique activity by activating C–H bonds to selectively introduce trifluoromethyl groups. Furthermore, B2Cz acts as a photo-cocatalyst alongside NiBr2 in C–N coupling reactions, which demonstrated excellent synergistic catalytic effects. This catalytic system not only enhances reaction efficiency but also significantly advances environmental friendliness and sustainability.

Graphical Abstract