75238-80-1Relevant articles and documents
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
SYNTHESIS OF HETEROCYCLIC COMPOUNDS XIX PREPARATION OF 4,6-DIARYL-3,5-DICYANO-2-PYRIDONES
Seoane, C.,Soto, J. L.,Zamorano, M. P.
, p. 639 - 642 (2007/10/02)
Reaction of cyanoacetamide with α-benzoylcinnamonitriles (I) leads to a new series of 4,6-diaryl-3,5-dicyano-2-pyridones (IV). The initial Michael's addition is followed by a cyclization to a 6-hydroxy-2-piperidone ring (II), whose acid dehydration gives rise to 3,4-dihydro-2-pyridones (III).The latter are easily aromatized to 4,6-diaryl-3,5-dicyano-2-pyridones (IV) by treatment with sodium nitrite in sulfuric acid.