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Merck
CN

90520

Triethyloxonium tetrafluoroborate

≥97.0% (T)

Synonym(s):

Et3OBF4, Meerwein′s reagent, Triethyloxonium fluoroborate

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About This Item

Linear Formula:
(C2H5)3O(BF4)
CAS Number:
Molecular Weight:
189.99
UNSPSC Code:
12352001
NACRES:
NA.22
PubChem Substance ID:
MDL number:
Beilstein/REAXYS Number:
3598090
Assay:
≥97.0% (T)
Form:
crystals
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Quality Level

assay

≥97.0% (T)

form

crystals

contains

1-3% ether as stabilizer

solubility

methylene chloride: 20 mg/mL, clear, colorless

functional group

ether

storage temp.

2-8°C

SMILES string

F[B-](F)(F)F.CC[O+](CC)CC

InChI

1S/C6H15O.BF4/c1-4-7(5-2)6-3;2-1(3,4)5/h4-6H2,1-3H3;/q+1;-1

InChI key

IYDQMLLDOVRSJJ-UHFFFAOYSA-N

Application

Triethyloxonium tetrafluoroborate can be used:
  • To prepare amino esters by reacting with lactams followed by hydrolysis.
  • In the preparation of substituted imidazolines from aziridines and nitriles via [3+2]-cycloaddition reaction.
  • For the N-alkylation of a series of N-arylsulfonyl-α-amino acid methyl esters having variable substituents at 4th position of the sulfonamide aromatic ring.

Other Notes

Powerful ethylating agent; Esterification of acids; Modifies carboxyl residues in proteins


pictograms

Corrosion

signalword

Danger

hcodes

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

supp_hazards

Storage Class

8A - Combustible corrosive hazardous materials

Regulatory Information

监管及禁止进口产品

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Synthesis of substituted imidazolines via [3+ 2]-cycloaddition of aziridines with nitriles
Prasad BAB, et al.
Tetrahedron Letters, 45(6), 1137-1141 (2004)
The identification of aspartic acid residue 52 as being critical to lysozyme activity.
S M Parsons et al.
Biochemistry, 8(10), 4199-4205 (1969-10-01)
M.J. Diem et al.
The Journal of Organic Chemistry, 42, 1801-1801 (1977)



Global Trade Item Number

SKUGTIN
90520-100G04061833247013
90520-25G04061833247020