Infrared absorption of substituents in heterocyclic systems. Part X. Amine–imine tautomerism by infrared spectroscopy: further examples
Abstract
An infrared study involving deuteration has shown that compounds previously designated as 5,6-dihydro-2-imino-1H, 4H-imidazo[4,5,1-ij]quinoline and 1,2-dihydro-2-imino-4H-3,1-benzoxazin-4-one exist predominantly as their amino-tautomers.