Reaction of dihydropyrazine-1,4-dioxides with organolithium compounds. Synthesis of nitroxyl radicals - derivatives of tetrahydropyrazine oxide

Article abstract of DOI:10.1007/BF00698953

Reaction of dihydropyrazine-1,4-dioxides with organolithium compounds followed by oxidation with MnO2 gives stable nitroxides of the pyrazine series.The reaction of a pyrazine containing methylnitrone groupings with ethylbenzoate in the presence of NaH or