113272-00-7

Upstream product

• 69457-39-2 3-phenyl-6-(1-pyridinia)-5-formyluracil-2-olate 
• 113271-96-8 4-phenyl-3,5-dioxo-2,2-dihydropyrimido<5,6-c>-6H-1'-azaquinolizine 

Relevant academic research and scientific papers

AMINATION OF THE PYRIDINIUM CATIONS IN BETAINES. SYNTHESIS OF SUBSTITUTED PYRIMIDO-1'-AZAQUINOLIZINE AND ITS DIHYDRO ANALOGS

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.