A new route to -hydroxyquinoxaline-2,3-diones and some aza-analogues
作者:Michael D. McFarlane、David M. Smith
DOI:10.1016/s0040-4039(01)91374-7
日期:1987.1
Reactions of -(-nitroaryl)sarcosine esters with bases give 1-hydroxy-4-methyl-quinoxaline-2,3-diones as the principal products; the corresponding reactions of -(3-nitro-2-pyridyl)sarcosine esters give 1-hydroxy-4-methylpyrido[2,3-]pyrazine-2,3-diones. The significance of these results, in relation to a general mechanism for nitro-group condensations, is discussed.