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663883

Sigma-Aldrich

Potassium hydrogenfluoride solution

3.0 M in H2O

Synonym(s):

Potassium acid bifluoride solution, Potassium acid fluoride solution, Potassium bifluoride, Potassium fluoride hydrofluoride solution, Potassium hydrogen difluoride, Potassium monohydrogen difluoride solution

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About This Item

Linear Formula:
KHF2
CAS Number:
7789-29-9
Molecular Weight:
78.10
MDL number:
MFCD00011403
UNSPSC Code:
12352302
PubChem Substance ID:
24884664
NACRES:
NA.22

Quality Level

100

concentration

3.0 M in H2O

density

1.136 g/mL at 25 °C

SMILES string

F.[F-].[K+]

InChI

1S/2FH.K/h2*1H;/q;;+1/p-1

InChI key

VBKNTGMWIPUCRF-UHFFFAOYSA-M

Related Categories

Application

Reactant for:
  • Development of 18F-labeled trifluoroboroaryl-functionalized PAMAM dendron/biotin conjugates for targeting of HER-2 expressing cancer cells pretreated with avidin-conjugated antibody
  • Preparation of tetrabutylammonium trifluoroborates

  • Used as a nucleophile for charge delocalization and enhanced acidity in tricationic superelectrophiles
Reagent used to prepare potassium organotrifluoroborates from their corresponding boronic acids.

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

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
SHBK2306
SHBD0105V
79696DM
64396BM
47296HK

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Gary A Molander et al.
Organic letters, 8(10), 2031-2034 (2006-05-05)
[reaction: see text] Potassium bromo- and iodomethyltrifluoroborates have been prepared via in situ reaction of n-BuLi with dibromo- and diiodomethane, respectively, in the presence of trialkyl borates, followed by treatment with KHF(2). Moreover, a new synthetic method for the preparation
Reaction of 2-deoxy-6-O-[2,3-dideoxy-4,6-O-isopropylidene-2,3- (N-tosylepimino)-alpha-D-mannopyranosyl]-4,5-O-isopropylidene-1,3-di-N- tosylstreptamine with potassium hydrogenfluoride.
Y Kobayashi et al.
Carbohydrate research, 229(2), 363-368 (1992-05-22)
Gary A Molander et al.
The Journal of organic chemistry, 73(17), 6841-6844 (2008-08-07)
A number of alkynyl pinacolboronates bearing various functional groups were synthesized according to literature methods. These were then stereoselectively reduced to the cis-alkenyl pinacolboronates via hydroboration with dicyclohexylborane followed by chemoselective protodeboronation using acetic acid. Treatment with potassium hydrogen fluoride
Matthew J Hesse et al.
Angewandte Chemie (International ed. in English), 51(50), 12444-12448 (2012-11-07)
E-allylic boronic esters undergo a highly diastereoselective protodeboronation with TBAF⋅3 H(2)O to give Z-trisubstituted alkenes. The selectivity can be switched to give predominantly the E-alkene instead by using KHF(2)/TsOH (see scheme). The utility of the methodology has been illustrated in a

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