Convenient crystalline highly chemoselective deoxofluorination reagent with a broad substrate scope.Deoxofluorination reagent with a better safety profile, that doesn′t generate corrosive HF which makes it suitable for use in standard borosilicate vessels, and does not react violently with water Convenient crystalline highly chemoselective deoxofluorination reagent with a broad substrate scope.Deoxofluorination reagent with a better safety profile, that doesn′t generate corrosive HF which makes it suitable for use in standard borosilicate vessels, and does not react violently with water