Synthesis of Pentafluorophenyl or Chlorotetrafluorophenyl Allenes

Abstract

The sequential reaction of phosphonium salt 1 with n-butyllithium, hexafluorobenzene or chloropentafluorobenzene, hexanoyl chloride and triethylamine affords pentalfuorophenyl or chlorotetrafluorophenyl allenes in 82–95% yields.

References

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