61378-38-9Relevant articles and documents
Reactions of naphthalen-2-ol Mannich bases with β-aminoacrylonitriles and methyl 3-morpholinoacrylate
Lukashenko, Anton V.,Osipov, Dmitry V.,Osyanin, Vitaly А.,Klimochkin, Yuri N.
, p. 529 - 536 (2020/06/10)
[InlineMediaObject not available: see fulltext.]3-Amino-2,3-dihydro-1H-benzo[f]chromenes and 2-[(2-hydroxynaphthalen-1-yl)methyl]-2,3-dihydro-1H-benzo[f]chromene-2-carbonitriles were obtained via the reaction of naphthalen-2-ol Mannich bases with β-aminoa
β-enaminonitriles in heterocyclic synthesis: Synthesis of new 1,4-dihydropyridine, pyrazolo[1,5-a]pyrimidine, aminothiophene and pyridine derivatives
Hafiz, Ibrahim S. A.
, p. 321 - 325 (2007/10/03)
Utility of 3-aminocinnamonitrile (1) in the synthesis of new 1,4-dihydropyridine, pyrazolo[1,5-a]pyrimidine, aminothiophene and pyridine derivatives is reported.
Studies on β-Enaminonitriles: Part I- Benzoylation in Presence of Sodium in Benzene
Sarkar, Mili,Chattopadhyay, S.,Mahalanabis, Kumar K.
, p. 1133 - 1137 (2007/10/02)
Sodium dust in benzene brings about an unusual reductive decyanation of β-aminocrotononitrile (1) to afford N-benzoylisopropylamine (2) as the major product, for which a tentative mechanism involving radical addition has been suggested.Benzoylation of β-aryl-β-aminoacrylonitriles (10, 11 and 12), however, under somilar conditions furnish a complex mixture of compounds, namely, β-aryl-β-amino-α-benzoylacrylonitriles (14, 18 and 22), pyrimidines (13, 17 and 21), β-ketonitriles (19, 20 and 23) and benzamide (16) in varying yields but in no case the formation of the corresponding reductive decyanation products have been observed.
SYNTHESIS OF 3,5-DICYANO-4-PHENYL-2,6-BIS(4-p-TERPHENYLYL)-1,4-DIHYDROPYRIDINE. AN ATTEMPT AT EXTENDING THE HANTZSCH SYNTHESIS
Marchalin, Stefan,Kuthan, Josef
, p. 1962 - 1970 (2007/10/02)
The 3-oxopropanenitrile IIIc, prepared from 4-acetyl-p-terphenyl (IV) by the sequence IV -> V -> VI -> IIIc, reacts with benzaldehyde and ammonium acetate in acetic acid to give the Hantzsch dihydropyridine VIIc and the corresponding pyridine derivative VIIIc.The alternative cyclocondensation of benzylidene derivative IIc and 3-oxopropanenitrile IIIc in the presence of ammonium acetate exclusively gives the pyridine derivative VIIIc.Rate of thermal and oxidative aromatizations of the 1,4-dihydropyridine derivatives, VIIa-VIIc -> VIIIa-VIIIc, decreases in the order VIIc > VIIb > VIIa.Mechanism of these transformations and spectral characteristics of compounds VIIc and VIIIc are discussed with regard to their molecular structure.
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