60847-65-6Relevant academic research and scientific papers
Synthesis of polysubstituted pyridines via reactions of chalcones and malononitrile in alcohols using Amberlite IRA-400 (OH-)
Bahrami, Kiumars,Khodaei, Mohammad M.,Naali, Fardin,Yousefi, Behrooz H.
supporting information, p. 5293 - 5298 (2013/09/12)
Polysubstituted pyridine derivatives were synthesized through economical one-pot multicomponent reactions of different α,β-unsaturated ketones, malononitrile, and ethanol or methanol in the presence of Amberlite IRA-400 (OH-) at room temperatur
Studies of Polyfunctionally Substituted Heteroaromatics: Synthesis of New Polyfunctionally Substituted Azabiaryls
Al-Omran, F.,Al-Awadi, N.
, p. 2201 - 2220 (2007/10/03)
The styryl derivatives 1a-e reacted with malononitrile by refluxing in ethanolic sodium ethoxide solution to yield the polyfunctionally substituted pyridine derivatives 4a-e rather than 7a-e, respectively.Compounds 4a-k were also obtained via condensation
A Facile Synthesis of 6-Alkoxy-2,4-diaryl-5-cyanopyridine
Al-Arab, Mohammad M.
, p. 1665 - 1673 (2007/10/02)
A new synthesis of substituted pyridine is reported.The base catalyzed reaction of substituted chalcones with malononitrile using sodium ethoxide in ethanol at room temperature afforded 2,4-diaryl-5-cyano-6-ethoxypyridine.Similarly, 2,4-diaryl-5-cyano-6-methoxypyridine have been prepared in presence of sodium methoxide in methanol as a catalyst.
A NOVEL SYNTHETIC ROUTE TO PHENYL-SUBSTITUTED PYRIDINES; SYNTHESIS OF BENZOPYRANOPYRIDINES, BENZOTHIOPYRANOPYRIDINES AND PYRIDOBENZOTHIAZINES(1-AZAPHENOTHIAZINES)
Tyndall, D. V.,Al Nakib, T.,Meegan, M. J.
, p. 2703 - 2706 (2007/10/02)
Reaction of 1,3-diphenylpropenone with malononitrile in base affords 1,4-diphenyl-2-methoxypyridine-3-carbonitrile.This reaction has been applied to a general synthesis of phenyl-substituted benzopyranopyridines, benzothiopyranopyridines and pyridobenzothiazines(1-azaphenothiazines).
CYCLIZATION OF NITRILES. IX. SYNTHESES BASED ON 2-ARYL-3-AROYL-1,1-DICYANOPROPANES
Shestopalov, A. M.,Promonenkov, V. K.,Sharanin, Yu. A.,Rodinovskaya, L. A.,Sharanin, S. Yu.
, p. 1382 - 1401 (2007/10/02)
2-Aryl-3-aroyl-1,1-dicyanopropanes and 2-aryl-3-aroyl-1-bromo-1,1-dicyanopropanes were synthesized from chalcones and malononitrile and were converted into 4,6-diaryl-2-bromo-3-cyanopyridines and 3-cyano-2(1H)-pyridinethiones.The 2-aryl-3-aroyl-1-bromo-1,1-dicyanopropanes proved convenient intermediates for the production of the corresponding cyclopropanes and other compounds.By their reaction with urea a new method was developed for the production of substituted 3-cyano-2(1H)-pyridinethiones.The 2-bromo-3-cyanopyridines contain a mobile bromine atom readily exchanged for the various nucleophilic residues of alcohols and amines and for iodide, and cyano and thiocyanato groups.The 3-cyano-2(1H)-pyridinethiones were used in the synthesis of 3-aminothienopyridines through the isolated 2-Z-methylthio-3-cyanopyridines.
