3-Difluoroacetylated quinolines and 3-fluoroacetylated quinolines were synthesized via a visible-light-induced cascade addition/cyclization of N-propargyl aromatic amines with ethyl bromodifluoroacetate or ethyl bromofluoroacetate catalyzed by fac-Ir(ppy)₃ under mild conditions. For the substrates bearing various substituents on the aniline ring and benzene ring, the reaction proceeded smoothly to give the corresponding difluoroacetylated or fluoroacetylated quinolines in moderate to high yields.

中文翻译：

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N-炔丙基芳族胺的光氧化还原催化级联加成/环化反应：获得3-二氟乙酰化或3-氟乙酰化喹啉

3-二氟乙酰化喹啉和3-氟乙酰化喹啉是通过在可见光条件下由fac -Ir（ppy）₃催化的N-炔丙基芳族胺与溴二氟乙酸乙酯或溴氟乙酸乙酯的级联加成/环化反应合成的。对于在苯胺环和苯环上带有各种取代基的底物，反应平稳进行，以中等至高产率得到相应的二氟乙酰化或氟乙酰化喹啉。