113290-21-4Relevant articles and documents
DIELS-ALDER REACTIONS OF BICYCLIC 1,2,4-TRIAZINES: THE CONVERSION OF PYRIMIDO-1,2,4-TRIAZINES TO PYRIDOPYRIMIDINES (5-DEAZAPTERIDINES)
Taylor, Edward C.,McDaniel, Keith F.,Warner, John C.
, p. 1977 - 1980 (2007/10/02)
Inverse electron-demand cycloaddition of aldehyde enamines with 6-azapterins and 6-azalumazines (pyrimido-1,2,4-triazines) leads regiospecifically to 6-substituted 5-deazapterins and 5-deazalumazines (pyridopyrimidines) respectively. 5,6-Fused cyclopenteno and cyclohexeno derivatives are formed with enamines derived from cyclopentanone and cyclohexanone respectively.