Photoredox-catalyzed procedure for carbamoyl radical generation: 3,4-dihydroquinolin-2-one and quinolin-2-one synthesis
作者:Wade F. Petersen、Richard J. K. Taylor、James R. Donald
DOI:10.1039/c7ob01274h
日期:——
A reductive approach for carbamoylradical generation from N-hydroxyphthalimido oxamides under photoredox catalysis is outlined. This strategy was applied to the synthesis of 3,4-dihydroquinolin-2-ones via the intermolecular addition/cyclization of carbamoylradicals with electron deficient olefins in a mild, redox-neutral manner. Under a general set of reactionconditions, diversely substituted 3
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