Fluoro-ketones VIII. Synthesis of some fluoroquinoxaline compounds from fluoroketones

The reaction between a perfluoroalkylether ,β-diketone or perfluoroalkyletherketoester and o-phenylenediamine yielding quinoxaline compounds was studied in detail. The various intermediate compounds leading to the formation of the quinoxalines were examined by NMR, MS, GC/MS and IR. 2,3-Perfluoroalkylether substituted quinoxaline is the major product of the reaction. In addition however, the formation of a minor product 3-perfluoro-alkylether-2(1H)-quinoxalinone, indicates an alternate reaction path.