Synthesis, Inhaltsverzeichnis Synthesis 2022; 54(13): 3105-3113DOI: 10.1055/a-1775-2910 paper Selenium Radical-Triggered Spiro-Tricyclization of N-Aryl-N-(2-hydroxyethyl)propiolamides Feng Pan‡ a School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, P. R. of China b College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, P. R. of China , Huilin Xie‡ c Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, 86 Hongqi Road, Ganzhou 34100, P. R. of China , Wenlin Xie∗ a School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, P. R. of China , Yu-Chao Wang b College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, P. R. of China c Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, 86 Hongqi Road, Ganzhou 34100, P. R. of China , Jin-Biao Liu ∗ c Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, 86 Hongqi Road, Ganzhou 34100, P. R. of China , Guanyinsheng Qiu ∗ b College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, P. R. of China › Institutsangaben Artikel empfehlen Abstract Artikel einzeln kaufen Alle Artikel dieser Rubrik Abstract A blue LED-promoted dearomative oxo-spirocyclization of N-aryl-N-(2-hydroxyethyl)propiolamides is developed. The reaction works well to provide a series of selenium-containing benzo[b]pyrrolo[2,1-c][1,4]oxazine-3,9-diones with high efficiency and good tolerance for functional groups. Besides, diselenium-containing benzo[b]pyrrolo[2,1-c][1,4]oxazine-3,9-diones can also be efficiently synthesized in the presence of Oxone. In this process, it is believed that a selenium radical-triggered ipso-cyclization and oxo-Michael addition are involved. 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