ChemInform Abstract: Aminodifluorosulfinium Tetrafluoroborate Salts as Stable and Crystalline Deoxofluorinating Reagents.

The Synthesis and Glycoside Formation of Polyfluorinated Carbohydrates

“…Stable, crystalline derivatives such as diethylaminodifluorosulfinium tetrafluoroborate (XtalFluor-E, pronounced 'crystalfluor'), essentially the product of reaction from DAST with BF3, have been introduced by the Couturier team at OmegaChem. [129][130][131] Because its reactive fluoride is now sequestered by BF3, a promoter such as Et3N•3HF or 1,8-diazabicyclo [5.4.0]undec-7-ene (DBU) is required for the reaction.…”