8.01663
Boron trifluoride-methanol complex
(20% solution in methanol) for synthesis
Synonym(s):
BF3 methanol
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About This Item
UNSPSC Code:
12352301
NACRES:
NA.22
Recommended Products
vapor pressure
4 hPa ( 20 °C)
Quality Level
form
liquid
autoignition temp.
420 °C
expl. lim.
5.5 % (v/v) Methanol)
transition temp
flash point 16 °C
density
0.89 g/cm3 at 20 °C
storage temp.
2-30°C
General description
Boron trifluoride-methanol complex (BF-M) is Lewis acid boron trifluoride incoordination with methanol. BF-M is a powerful acidic catalyst for the esterification of fatty acids. In the deacetylation of acetanilides, the complex displayed excellent deprotection selectivity against amino-protecting groups.
Application
Boron trifluoride-methanol complex is used:
- As a reagent for deprotection of N-acetyl derivatives (acetylated amines of cyanine-type dyes).
- As a starting material in the automated radiosynthesis procedure for [18F]tetrafluoroborate.
Analysis Note
Assay BF3 (acidimetric): 14.0 - 16.0 %
Density (d 20 °C/ 4 °C): 0.880 - 0.895
Density (d 20 °C/ 4 °C): 0.880 - 0.895
signalword
Danger
Hazard Classifications
Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Eye Dam. 1 - Flam. Liq. 2 - Skin Corr. 1B - STOT SE 1
Storage Class
3 - Flammable liquids
wgk_germany
WGK 2
flash_point_f
60.8 °F
flash_point_c
16 °C
Certificates of Analysis (COA)
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Boron trifluoride--methanol complex-mild and powerful reagent for deprotection of labile acetylated amines
Miltsov S, et al.
Tetrahedron Letters, 44(11), 2301-2303 (2003)
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