Nitronium tetrafluoroborate is an inorganic compound with formula NO2BF4. It is a salt of nitronium cation and tetrafluoroborate anion.[1] It is a colorless crystalline solid, which reacts with water to form the corrosive acids HF and HNO3. As such, it must be handled under water-free conditions. It is sparsely soluble in many organic solvents.

Preparation

Nitronium tetrafluoroborate can be prepared by adding a mixture of anhydrous hydrogen fluoride and boron trifluoride to a nitromethane solution of nitric acid or dinitrogen pentoxide.[2]

Applications

Nitronium tetrafluoroborate is used in organic synthesis as an electrophilic nitrating agent and a mild oxidant.[3]

References

  1. ^ Krossing, Ingo; Raabe, Ines; Birtalan, Esther (2007-01-12). "Nitronium tetrafluoroborate". Acta Crystallographica Section E: Structure Reports Online. 63 (2): i43 – i44. doi:10.1107/S1600536807000207. ISSN 1600-5368.
  2. ^ Kenneth Schofield (1980). Aromatic nitration. CUP Archive. p. 88. ISBN 0-521-23362-3.
  3. ^ Olah, George A.; Prakash, G. K. Surya; Wang, Qi; Li, Xing-ya (2001-04-15), John Wiley & Sons, Ltd (ed.), "Nitronium Tetrafluoroborate", Encyclopedia of Reagents for Organic Synthesis, Chichester, UK: John Wiley & Sons, Ltd, doi:10.1002/047084289x.rn043, ISBN 978-0-471-93623-7, retrieved 2024-11-27
Allikas: https://en.wikipedia.org/wiki/Nitronium_tetrafluoroborate
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