Trifluoroacetic acid → Methyl 4-(1-carboxycyclopropyl)-2,3,5,6-tetrafluorobenzoate

Participants

Reaction Steps

In 60 ml of anisole was dissolved 22.5 g of methyl 4-(1-diphenylmethoxycarbonylcyclopropyl)-2,3,5,6tetrafluorobenzoate. To the resulting solution was added 80 ml of trifluoroacetic acid. The resulting mixture was stirred at room temperature for 2 hours. The reaction mixture was concentrated under reduced pressure. n-Hexane was added to the residue obtained. The resulting crystals were collected by filtration to obtain 12.7 g (yield: 88.8%) of methyl 4-(1-carboxycyclopropyl)-2,3,5,6tetrafluorobenzoate.

Provenance & Evidence