78482-11-8Relevant academic research and scientific papers
Reactivity of Heterocyclic Compounds. VI. 2,6-Diaminopyrimidine-5-carbonitriles and 3,5-Dicyanopyridones from 2-Amino-4H-pyran-3,5-dicarbonitriles
Seoane, C.,Soto, J. L.,Quinteiro, M.
, p. 35 - 41 (2007/10/02)
The reaction of different 2-amino-4H-pyrans (1, 10) with guanidine affords 2,6-diaminopyrimidine derivatives (3).Treatment of the pyrans mentioned or their acetylated derivatives with trityl tetrafluoroborate does not yield pyrylium salts, and pyrid-2-one
Synhesis of Heterocyclic Compounds. Part 46. The reactions of Malonamide and 2-Cyanoacetamide with Substituted Propenones
Soto, Jose L.,Seoane, Carlos,Zamorano, Pilar,Rubio, Maria J.,Monforte, Alejandro,Quinteiro, Margarita
, p. 1681 - 1686 (2007/10/02)
The synthesis of substituted 2-pyridone derivatives from malonamide (1) and 2-cyanoacetamide (2) is reported.Conjugate addition of these compounds to substituted propenones (3) and (4) leads to 6-hydroxy-2-piperidones, which can be dehydrated and aromatiz
Ring Transformations of 4H-Pyrans. Pyridines from 2-Amino-4H-Pyrans
Seoane, Carlos,Soto, Jose L.,Zamorano, Pilar,Quinteiro, Margarita
, p. 309 - 314 (2007/10/02)
Ring transformations of 4H-pyrans into pyridines are reported.Treatment of 2-amino-4,6-diaryl-3,5-dicyano-4H-pyrans (I) with nitrosylsulfuric acid brings about their transformation into 3,5-dicyano-4,6-diaryl-2-pyridones (VI) which can also be obtained fr
