ACETALS OF LACTAMS AND ACID AMIDES. 39. SYNTHESIS OF THREE-RING DERIVATIVES OF PYRIDOPYRIMIDINES ON THE BASIS OF THE REACTION OF DIMETHYLFORMAMIDE ACETAL WITH DICYANOMETHYLENECYCLOALKANES

Article abstract of DOI:10.1007/BF00506895

The reaction of dicyanomethylenecyclopentane and -cyclohexane with dimethylformamide diethylacetal was used to synthesize dieneamino nitriles, from which isoquinoline and 2-pyridine derivatives were obtained by treatment with ammonia.The reaction of 3-ami