113271-96-8Relevant academic research and scientific papers
AMINATION OF THE PYRIDINIUM CATIONS IN BETAINES. SYNTHESIS OF SUBSTITUTED PYRIMIDO-1'-AZAQUINOLIZINE AND ITS DIHYDRO ANALOGS
Kochkanyan, R. O.,Lukanyuk, S. S.
, p. 563 - 566 (2007/10/02)
The pyridinium cations within betaines can be aminated under mild conditions with aqueous ammonia, ultimately undergoing cyclization to a new tricyclic system: 4-substituted-3,5-dioxopyrimido-1'-azaquinolizine.Intermediates in the reaction are 4-substituted-3,5-dioxo-2,2-dihydropyrimido-6H-1'-quinolizines.
