Аннотация:
In the presence of an equimolar amount of triethylamine, 2,5-diphenyl-3,3,4,4-tetracyanopyrrolidine 1 reacts with vinyl ketones 3 to give 1-amino-5-acyl-2,3,3-tricyano-5-[phenyl(benzylidenamino)methyl]cyclopent-1-enes 6; the structure of molecule 6b has been determined by an X-ray study of the monocrystal.