Triethyloxonium tetrafluoroborate

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Triethyloxonium tetrafluoroborate
IUPAC name Triethyloxonium tetrafluoroborate
Identifiers
CAS number [368-39-8]
SMILES CC[O+](CC)CC.F[B-](F)(F)F
Properties
Molecular formula C6H15BF4O
Molar mass 189.99 g/mol
Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)

Infobox disclaimer and references

Triethyloxonium tetrafluoroborate is a chemical compound with the formula [(C2H5)3O]+[BF4]-.

It is a powerful ethylating agent used in chemical synthesis. One of the three ethyl groups is readily transferred to a nucleophile It is used for esterification of acids. When proteins are treated with this reagent, carboxyl residues are ethylated.

[edit] References

  • Sigma-Aldrich Handbook of Fine Chemicals 2007, page 2388, and literature cited there.