The interaction of michael adducts with ethylenediamine and malononi

In this work reported some transformation reactions of Michael adducts. By the interaction of Michael adducts obtained on the base of dibenzoylmethane with ethylenediamine the compound (5) phenyl(5,7,8a-triphenyl-1,2,3,7,8,8a-hexahydroimidazo[1,2-a]pyridin-6-yl)methanone have been synthesized. 2-Acetyl-5-oxo-N,3,5-triphenylpentanamide, that is Michael adduct interacts with malononitrile at the presence of piperidine and forms compound with bicyclic structure, 3-amino-2,6,8-triphenyl-7,8-dihydroisoquinolin-1(2H)-one (10). The one-pot synthesis routes and plausible reaction mechanisms were suggested. Structures of all synthesized compounds confirmed by NMR spectroscopy.