A new compound, 5-acetyl-2-amino-4-(2-chloro-5-nitrophenyl)-6-oxo-1-phenyl-1,4,5,6-tetrahydropyridine-3-carbonitrile, was synthesized by the reaction of 2-chloro-5-nitrobenzylidenemalononitrile with malononitrile and aniline. Subsequently, it was subjected to catalytic rearrangement in the presence of ethylenediamine and a second new compound, 4-(2-chloro-5-nitrophenyl)-6-oxo-2-(phenylamino)-1,4,5,6-tetrahydropyridine-3-carbonitrile, was obtained. The structure of the products was determined using NMR spectroscopy and X-ray diffraction analysis. A probable mechanism of the rearrangement reaction was proposed.
F.N. Naghiyev (2025) studied this question.