Trimethyloxonium tetrafluoroborate

Trimethyloxonium tetrafluoroborate
Names


IUPAC name Trimethyloxonium tetrafluoroborate
Other names Trimethyloxonium fluoborate
Identifiers
CAS Number	420-37-1^Y
3D model (Jmol)	Interactive image
ChemSpider	2016863
ECHA InfoCard	100.006.360
PubChem	2735153
InChI InChI=1S/C3H9O.BF4/c1-4(2)3;2-1(3,4)5/h1-3H3;/q+1;-1 Key: CZVZBKHWOFJNCR-UHFFFAOYSA-N
SMILES F[B-](F)(F)F.[O+](C)(C)C
Properties
Chemical formula	C₃H₉BF₄O
Molar mass	147.91 g·mol⁻¹
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Trimethyloxonium tetrafluoroborate Me₃OBF₄ (sometimes called the "Meerwein salt" after Hans Meerwein) is a strong methylating agent. It is the methyl analog to triethyloxonium tetrafluoroborate. Commercially available, this compound is prepared similarly, by reaction of boron trifluoride etherate with dimethyl ether and epichlorohydrin.^[1]

References

↑ T. J. Curphey (1988). "Trimethyloxonium Tetrafluoroborate". Org. Synth. ; Coll. Vol., 6, p. 1019

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