3803-16-5Relevant academic research and scientific papers
PREPARATION AND STRUCTURE ELUCIDATION OF SOME N-ALKYLPYRAZINIUM SALTS AND THEIR N-OXIDES
Jovanovic, Misa V.
, p. 2299 - 2315 (2007/10/02)
Several N4-alkylpyrazinium N-oxide salts were prepared in high yields by heating the corresponding pyrazine N1-oxides in the presence of alkylating reagent and solvent.The proton nmr data point to the quinoidal nature of these compounds.Pyrazine di-N-oxides deoxygenated rapidly under same reaction conditions to yield a mixture of N-alkylpyrazinium and N-alkylpyrazinium mono-N-oxide salts.Mechanism is proposed to account for these reductive deoxygenations of the pyrazine nucleus.
