Perfluoroalkyl-1,2,3-triazines: novel nucleophilic attack on ring nitrogen

Syntheses of trifluoro- and perfluoroisopropyl-1,2,3-triazine derivatives and the unusual nucleophilic attack by a perfluoroalkyl anion and phenylmagnesium bromide on ring nitrogen are described; cheletropic addition of 2,3-dimethylbutadiene to ring nitrogen and an analogous addition of 2,3-dimethylbut-2-ene occur.