DBU-catalyzed, aromatization-oriented, regioselective domino synthesis of 2-aminopyrimidines from ß-dicarbonyl compounds, DMF-DMA, and cyanamide.

A multicomponent domino synthesis has been developed for the preparation of 2-aminopyrimidines from ß-dicarbonyl compounds, N,N-dimethylformamide dimethyl acetal, and cyanamide. The protocol was used for the regioselective preparation of 4-amide/ester/ketone substituted 2-aminopyrimidines. Twelve 2-aminopyrimidines were isolated in good yields (56-93%).

Synthesis of new naphtho[2,3-f]quinoxaline-2,7,12(1H)-trione and anthra-9,10-quinone dyes from furan-2,3-diones.

Novel naphtho[2,3-f]quinoxaline-2,7,12(1H)-trione and anthra-9,10-quinone dyes were synthesized in good yield from furan-2,3-diones using 1,2-diaminoanthra-9,10-quinone and 1,4-diaminoanthra-9,10-quinone. The chromophores were characterized by molecular spectroscopy methods.