1352001-01-4Relevant articles and documents
Reactions of pyrazinium salts with phenols: From σh- adducts to SN H products and transformations into benzo[b]furans
Verbitskiy,Kvashnin,Slepukhin,Kuchin,Rusinov,Chupakhin,Charushina
, p. 919 - 928 (2011)
The reaction of 5-(het)aryl-2,3-dicyano-1-ethylpyrazinium salts with phenol derivatives affords relatively stable dihydropyrazines, whereas the reactions of 6-(het)aryl-1,2,5-oxadiazolo[3,4-b]pyrazin-4-ium protic salts, depending on the phenol structure,