Novel reactiom of 5-nitro(or carbamoyl)uracil derivatives with amines. Thermal exchange reaction of N1-portion of the uracils for amines ring-opening and ring-closure processes
The reaction of 1,3-disubstituted uracilspossessing an electron withdrawing group at the 5-position with amines induced exchange of N1-portion of the uracil ring for amines. This reaction was accelerated by substitution of phenyl groups at the N1-position.