Photoredox-Catalyzed Reductive Carbamoyl Radical Generation: A Redox-Neutral Intermolecular Addition–Cyclization Approach to Functionalized 3,4-Dihydroquinolin-2-ones
作者:Wade F. Petersen、Richard J. K. Taylor、James R. Donald
DOI:10.1021/acs.orglett.7b00022
日期:2017.2.17
reductive generation of carbamoyl radicals using photoredox catalysis for their formation is reported. This approach facilitated the development of a redox-neutral synthesis of functionalized 3,4-dihydroquinolin-2-ones via the novel intermolecular addition–cyclization of carbamoyl radicals across electron-deficient alkenes. To illustrate the versatility of this reaction, a diverse collection of 3,4-dihydroquinolin-2-ones
报道了使用光氧化还原催化形成氨基甲酰基自由基的第一还原性生成。这种方法通过跨电子缺陷烯烃的氨基甲酰基基团的新型分子间加成-环化作用,促进了功能化3,4-二氢喹啉-2-酮的氧化还原中性合成的发展。为了说明该反应的多功能性,已制备了3,4-二氢喹啉-2-酮的各种集合,包括受天然产物启发的稠合环状和螺环系统。