RESUMO
A simple and efficient method for the visible light induced direct carbon alkylation of quinoxalin-2(1H)-ones at the C3 position is described. This protocol employs cheap and readily available phenyliodine(iii) dicarboxylates as the alkylation reagents to conduct decarboxylative radical coupling reaction with quinoxalin-2(1H)-ones. The process exhibits excellent compatibility to functional groups and provides a convenient and selective access to various 3-alkylquinoxalin-2(1H)-ones in good yields.
RESUMO
In the title compound, C25H25NO2, the phenyl ring on the 1,3-oxazole ring is disordered over two positions with occupancies of 0.600â (4) and 0.400â (4). The inter-planar angle between these two disordered rings is 77.8â (2)°. There is an intra-molecular O-Hâ¯N hydrogen bond of moderate strength. In the crystal, C-Hâ¯π inter-actions interconnect neighbouring molecules. The absolute structure has been derived from the known absolute structure of the reagents.