Unusual pyridone salts
Abstract
The reaction between N-alkyl-2-pyridones and tetracyanoethylene produces 2 : 1 salts of the pyridone with pentacyanopropene. Metathetical exchange of these salts with 4H-quinolizin-4-one leads to mono- and bis-quinolizone salts. Similar salts are formed with hydroquinone in place of pentacyanopropene.