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175501

Sigma-Aldrich

Boron trifluoride diethyl etherate

for synthesis

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Synonym(s):
Boron trifluoride ethyl etherate
Linear Formula:
BF3 · O(C2H5)2
CAS Number:
Molecular Weight:
141.93
Beilstein:
3909607
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

grade

for synthesis

Quality Level

vapor density

4.9 (vs air)

vapor pressure

4.2 mmHg ( 20 °C)

form

liquid

expl. lim.

36 %

reaction suitability

core: boron
reagent type: Lewis acid
reagent type: catalyst

refractive index

n20/D 1.344 (lit.)

bp

126-129 °C (lit.)

mp

−58 °C (lit.)

density

1.15 g/mL (lit.)

storage temp.

2-8°C

SMILES string

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

InChI

1S/C4H10BF3O/c1-3-9(4-2)5(6,7)8/h3-4H2,1-2H3

InChI key

MZTVMRUDEFSYGQ-UHFFFAOYSA-N

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General description

Boron trifluoride diethyl etherate or boron trifluoride-ether complex is an organic compound widely used as a convenient source of boron trifluoride (BF3) in organic synthesis. It is also used as a Lewis acid for the activation of electrophiles.

Application

Catalyst used in the preparation of cyclopentyl- and cycloheptyl[b]indoles from aryl cyclopropyl ketones via [3+2] cycloaddition.
Lewis acid reagent with broad application

Packaging

The 25 mL Sure/Seal bottle is recommended as a single-use bottle. Repeated punctures will likely result in decreased performance of product.

Legal Information

Sure/Seal is a trademark of Sigma-Aldrich Co. LLC

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B - STOT RE 1 Inhalation

Target Organs

Kidney

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

137.3 °F - closed cup

Flash Point(C)

58.5 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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