D. Chapman
1966
Citations
0
Influential Citations
8
Citations
Journal
Journal of The Chemical Society C: Organic
Abstract
The compound previously formulated as ethyl 1,2-dihydro-2-oxoquinoxalin-3-ylacetate has the isomeric structure 3-ethoxycarbonylmethylene-2-oxo-1,2,3,4-tetrahydroquinoxaline in the solid state. In solution the 1-methyl derivative has been shown by nuclear magnetic resonance studies to exist as a tautomeric mixture of unsaturated and saturated esters.