[A11471] CAS 373-61-5 | Boron trifluoride-acetic acid complex,35-36.5% BF3

CAS : 373-61-5
UN# : UN1742
MDL : MFCD00036359
Hazard Class : 8
EINECS : 206-768-5
Packing Group : II

Chemical Properties

Formula : BF3•2CH3CO2H
Formula weight : 187.91
Melting Point : -47°
Boiling Point : 143-146° Flash point: 83°(181°F)
Density : 1.345
Refractive Index : 1.3670
Sensitivity : Moisture Sensitive. Store under Nitrogen. Ambient temperatures.
Form : Liquid
Solubility : It reacts with water.

Literature References

Mild acid catalyst which has found use as a desilylating agent: Allylsilanes undergo desilylation, via ß-stabilized carbocations, to give alkenes with allylic rearrangement: Tetrahedron Lett., 446 (1979); J. Chem. Soc., Perkin 1, 3267 (1992). -Silyl tertiary alcohols undergo a pinacol-like rearrangement to give alkenes: Tetrahedron Lett., 22, 2321 (1981). Has been used in the protodesilylation of the phenyl group as part of the conversion of the dimethylphenylsilyl group into a hydroxyl group with retention of configuration: J. Chem. Soc., Perkin 1, 317 (1995). For reaction scheme, see Chlorodimethyl­phenyl­silane, A15638.

Applications

It is an important raw material and intermediate used in Organic Synthesis, Pharmaceuticals, Agrochemicals and Dyestuff. It is also used as a desilylating agent. It is also been used in the protodesilylation of the phenyl group as part of the conversion of the dimethylphenylsilyl group into a hydroxyl group with retention of configuration.

Grade Specifications

GHS Hazard and Precautionary Statements

Hazard Statements : H301-H330-H314-H318-H227Toxic if swallowed.Fatal if inhaled.Causes severe skin burns and eye damage.Causes serious eye damage.Combustible liquid.
Precautionary Statements : P210-P301+P310-P303+P361+P353-P304+P340-P305+P351+P338-P320-P330-P405-P501aKeep away from heat/sparks/open flames/hot surfaces. – No smoking.IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.Specific treatment is urgent (see label).Rinse mouth.Store locked up.Dispose of contents/container in accordance with local/regional/national/international regulations.Other References:Beilstein: 3686177UN#: UN1742