A convenient method for the synthesis of perfluoroalkylated indolizinyl-phosphonates via the 1,3-cycloaddition of pyridinium N-ylide and perfluoroalkynyl phosphonate in 49-77% yields is described.
perfluoroalkylated indolizinylphosphonate - 1,3-cycloaddition - pyridinium N-ylide - perfluoroalkynylphosphonate