Reaction of 4-aminouracil with 2-(arylmethylene)indan-1, 3-diones

The reaction of the arylmethyleneindanones (I) with 4-aminouracil or its N-methyl derivative (IV) gives new multinuclear nitrogencontaining systems—5-aryl-2,4,6-trioxo-1-R-3-R-1,2,3,4,5,11-hexahydro-11-azafluoreno3,2-d]pyrimidines (V), which are oxidized by chromic anhydride to 5-aryl-2,4,6-trioxo-1-R-3-R-1,2,3,4-tetrahydro-11-azafluoreno3,2-d]pyrimidines (VI). The UV and IR spectra of the compounds synthesized are given.