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483885

Sigma-Aldrich

1,1′-Difluoro-2,2′-bipyridinium bis(tetrafluoroborate)

Synonym(s):

MEC-31

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About This Item

Empirical Formula (Hill Notation):
C10H8B2F10N2
CAS Number:
178439-26-4
Molecular Weight:
367.79
MDL number:
MFCD01073546
UNSPSC Code:
12352101
PubChem Substance ID:
24871924
NACRES:
NA.22

mp

175 °C (dec.) (lit.)

Quality Level

200

storage temp.

2-8°C

SMILES string

F[B-](F)(F)F.F[B-](F)(F)F.F[n+]1ccccc1-c2cccc[n+]2F

InChI

1S/C10H8F2N2.2BF4/c11-13-7-3-1-5-9(13)10-6-2-4-8-14(10)12;2*2-1(3,4)5/h1-8H;;/q+2;2*-1

InChI key

IDFABAACDRPWQX-UHFFFAOYSA-N

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Application

1,1′-Difluoro-2,2′-bipyridinium bis(tetrafluoroborate) or SynFluor can be used as an electrophilic fluorinating reagent to synthesize various organofluorine compounds. This reagent is very reactive with high fluorine content, which can be activated by the addition of a catalytic amount of sodium triflate (NaOTf).
  • Fluorinating agent

Reactant for:
  • Electrophilic fluorination
  • Preparation of electrophiles from common anions via fluorination

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H302,H314

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1B

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
MKBL3290V
MKBB7575
01512AE
14413JU

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Exploration of fluorination reagents starting from FITS reagents
Umemoto T
Journal of Fluorine Chemistry, 167, 3-15 (2014)
1, 1?-Difluoro-2, 2?-bipyridinium bis (Tetrafluoroborate)
Singh RP and Umemoto T
Encyclopedia of Reagents for Organic Synthesis, Second Edition (2001)

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