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Selectfluor
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1-Chloromethyl-4-fluoro-1,4-diazoniabicyclo()octane bis(tetrafluoroborate) or Selectfluor, a trademark of Air Products and Chemicals, is a reagent in chemistry that is used as a fluorine donor. This compound is a derivative of the heterocycle DABCO . This colourless salt was first described in 1992 and has since been commercialized for use in organofluorine chemistry for electrophilic fluorination.
==Preparation==
Selectfluor is synthesized by the N-alkylation of diazabicyclo()octane (DABCO) with dichloromethane, followed by ion exchange with sodium tetrafluoroborate (replacing the chloride counterion for the tetrafluoroborate). Finally, this salt is treated with elemental fluorine and sodium tetrafluoroborate:〔
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抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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