A convenient method for N-1 arylation of uracil derivatives

1-(4-Nitrophenyl)- and 1-(2,4-dinitrophenyl)uracil derivatives were prepared by direct arylation of uracil and its 5-substituted derivatives using 1-fluoro-4-nitrobenzene or 1-fluoro-2,4-dinitrobenzene. The application of 1-(2,4-dinitrophenyl)-5-nitrouracil in ANRORC type reactions is also presented.