The Cover Feature shows the synthesis of substituted indolo[1,2-a]quinoline-5(6H)-ones starting from 1-(2-ethynylphenyl)-1H-indoles and N-oxides by a gold-catalyzed oxidation of the triple bond, followed by an acid-promoted intramolecular cyclization at the indole C-2 position. More information can be found in the Research Article by E. Brambilla, V. Pirovano and co-workers (DOI: 10.1002/ejoc.202400083). Cover design by Dominica Del Grosso.

中文翻译：

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封面专题：从 1-(2-乙炔基苯基)-1H-吲哚一锅金/酸催化合成吲哚[1,2-a]喹啉-5(6H)-酮 (Eur. J. Org. Chem. 23/2024）


封面专题展示了以 1-(2-乙炔基苯基)-1H-吲哚和 N-氧化物为原料，通过金催化的三元化合物氧化，合成取代的吲哚并[1,2-a]喹啉-5(6H)-酮键，然后在吲哚 C-2 位上进行酸促进的分子内环化。更多信息请参阅 E. Brambilla、V. Pirovano 及其同事的研究文章 (DOI: 10.1002/ejoc.202400083)。封面设计由多米尼加·德尔·格罗索 (Dominica Del Grosso) 设计。