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175501

Sigma-Aldrich

Boron trifluoride diethyl etherate

for synthesis

Synonym(s):

Boron trifluoride ethyl etherate

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About This Item

Linear Formula:
BF3 · O(C2H5)2
CAS Number:
109-63-7
Molecular Weight:
141.93
Beilstein/REAXYS Number:
3909607
EC Number:
203-689-8
MDL number:
MFCD00013194
UNSPSC Code:
12352106
PubChem Substance ID:
24850505
NACRES:
NA.22

grade

for synthesis

Quality Level

200

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.)

functional group

ether

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

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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

3 - Flammable liquids

wgk_germany

WGK 1

flash_point_f

137.3 °F - closed cup

flash_point_c

58.5 °C - closed cup

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

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Certificates of Analysis (COA)

Lot/Batch Number
SDBB1791
STBL2236
SHBP6999
SHBP6998
SHBP6997

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European Journal of Organic Chemistry, 5378-5378 (2006)
George R Pettit et al.
Journal of natural products, 74(9), 1922-1930 (2011-09-09)
The synthesis of bis-steroidal pyrazines derived from 3-oxo-11,21-dihydroxypregna-4,17(20)-diene (4) and glycosylation of a D-ring side chain with α-L-rhamnose have been summarized. Rearrangement of steroidal pyrazine 10 to 14 was found to occur with boron triflouride etherate. Glycosylation of pyrazine 10
M S F Lie Ken Jie et al.
Chemistry and physics of lipids, 125(2), 93-101 (2003-09-23)
Methyl santalbate (methyl trans-11-octadecen-9-ynoate) from Sandal wood seed oil, Santalbum alum) was epoxidized to methyl trans-11,12-epoxy-octadec-9-ynoate (1). Treatment of compound 1 with tetrabutylammonium dihydrogentrifluoride, and boron trifluoride etherate gave the corresponding anti- (2a) (57%) and syn- (2b) (35%) fluorohydrin derivatives
U C Reddy et al.
The Journal of organic chemistry, 74(6), 2605-2608 (2009-02-17)
A diastereoselective one-pot, three-component Prins-Friedel-Crafts reaction was developed for the synthesis of 4-aryltetrahydropyran derivatives from the reaction of carbonyl compounds with homoallylic alcohol in the presence of arene promoted by boron trifluoride etherate.
Meng-Yang Chang et al.
Organic letters, 12(6), 1176-1179 (2010-03-03)
An easy and straightforward synthesis of 6,10b-diarylhexahydrobenzo[f]isoquinoline by the repeated treatment of boron trifluoride etherate (BF(3) x OEt(2)) is reported. The overall transformation from 4-arylpiperidin-3-one to benzo[f]isoquinoline proceeds via ring contraction, chain elongation, and intramolecular electrophilic cyclization in moderate yields.
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