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Name: Triethyloxonium tetrafluoroborate

Synonyms:

Triethyloxidanium;

Et3OBF4, Meerwein′s reagent,

Triethyloxonium fluoroborate;

Oxonium, triethyl-, tetrafluoro borate(1-).

CAS No.: 368-39-8

EINECS: 206-705-1

MF: (C2H5)3O(BF4)

MW: 189.99

MP: 84-89℃

BP: N/A

FP: N/A

Density: 1.328 g/mL at 25 °C

Purity: 97% Min.

Appearance: White powder

Storage Condition: 2-8℃

Application: ionic liquid; Powerful ethylating agent; Esterification of acids; Modifies carboxyl residues in proteins

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.

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