Triethyloxonium tetrafluoroborate

Structural formula
General
Surname	Triethyloxonium tetrafluoroborate
other names	Meerwein's reagent (ambiguous)
Molecular formula	(C 2 H 5 ) 3 O (BF 4 )
Brief description	white solid
External identifiers / databases
CAS number 368-39-8 EC number 206-705-1 ECHA InfoCard 100.006.096 PubChem 2723982 Wikidata Q7841464
properties
Molar mass	189.99 g mol −1
Physical state	firmly
Melting point	84-89 ° C
safety instructions
GHS labeling of hazardous substances danger H and P phrases H: 314 P: 280-305 + 351 + 338-310
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Triethyloxonium tetrafluoroborate is a chemical compound from the group of trialkyloxonium salts.

presentation

Triethyloxonium tetrafluoroborate can be obtained by reacting boron trifluoride diethyl etherate with epichlorohydrin .

properties

Triethyloxonium tetrafluoroborate is a white solid. It is available either as a solution in dichloromethane or stabilized with 1 to 5% diethyl ether .

use

Triethyloxonium tetrafluoroborate is a powerful ethylating agent . It can also be used to esterify acids and modify carboxyl residues in proteins.

Individual evidence

1. ↑ ^{a b c d e f} data sheet Triethyloxonium tetrafluoroborate from Sigma-Aldrich , accessed on May 20, 2017 ( PDF ).
2. ↑ data sheet Triethyloxonium tetrafluoroborate, 95%, stab. with 3-5% diethyl ether from AlfaAesar, accessed December 5, 2014 ( PDF )(JavaScript required) .
3. ↑ H. Meerwein: TRIETHYLOXONIUM FLUOBORATE In: Organic Syntheses . 46, 1966, p. 113, doi : 10.15227 / orgsyn.046.0113 ; Coll. Vol. 5, 1973, p. 1080 ( PDF ).