Abstract Perfluoroalkylation at the C-5 position of uracil has been achieved in yields of 38– 56% by the reaction of its bis (trimethylsilyl) derivative with bis (perfluoroalkanoyl) peroxides and the hydrolytic deprotection of the silylated products. A substituent or nitrogen replacement at C-6 does not interfere with perfluoroalkylation at C-5, but no significant reaction occurs at C-6 when C-5 is blocked.
[Dolman, Nigel P.; More, Julia C. A.; Alt, Andrew; Knauss, Jody L.; Pentikaeinen, Olli T.; Glasser, Carla R.; Bleakman, David; Mayer, Mark L.; Collingridge, Graham L.; Jane, David E. Journal of Medicinal Chemistry, 2007 , vol. 50, # 7 p. 1558 - 1570]