The increasing use of acridinium photocatalysts as sustainable alternative to precious metal-based counterparts encourages the design and efficient synthesis of distinct catalyst structures. Herein, we report our exploration of the scope of the aryne–imine–aryne coupling reaction combined with a subsequent acridane oxidation for a short two-step approach towards various acridinium salts. The photophysical properties of the novel photocatalysts were investigated and the practical value was demonstrated by a cation-radical accelerated nucleophilic aromatic substitution reaction.

中文翻译：

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用于合成吖啶光催化剂的 Aryne-Imine-Aryne 偶联的多功能性

越来越多地使用吖啶光催化剂作为贵金属基对应物的可持续替代品，鼓励了不同催化剂结构的设计和有效合成。在此，我们报告了我们对芳炔-亚胺-芳炔偶联反应的范围的探索，结合随后的吖啶氧化，以对各种吖啶盐进行短两步法。研究了新型光催化剂的光物理性质，并通过阳离子自由基加速的亲核芳香取代反应证明了其实用价值。