Abstract Cyclocondensation of 3-aryl-2-benzylidene-3-oxopropanenitriles Ia and Ib with acetyl aromatic derivatives IIa-IIc in the presence of ammonium acetate affords 2, 6-diaryl-4- phenyl-3-cyanopyridines IV and V. Reaction of the nitrile Ib with 1, 2-diphenylethanone (III) gave 2-(4-biphenylyl)-4, 5, 6-triphenyl-3-cyanopyridine (VI). The relation between the structure of the synthesized pyridine derivatives IV-VI and their spectral properties is ...
