β-Amino-β-(pyrid-4-yl)acrylonitrile in heterocyclic synthesis: synthesis of some new pyridine, pyridone, pyrazole, thiophene, fused pyrimidine and triazine derivatives

β-Amino-β-(pyrid-4-yl)acrylonitrile reacts with various types of reagents with variable molar ratios under different conditions to yield pyridine derivatives and condensed heterocyclic compounds containing a pyridyl moiety.