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Hydrogen fluoride pyridine

ALDRICH/184225 - pyridine ~30 %, hydrogen fluoride ~70 %

Synonym: HF-Pyridine; Olah′s reagent; PPHF; Poly(pyridine fluoride); Pyridine hydrofluoride; Pyridinium poly(hydrogen fluoride); Pyridinium polybifluoride

CAS Number: 62778-11-4
MDL Number: MFCD00012436
Product Type: Chemical

Catalog Number PKG Qty. Price Quantity
45-184225-25G 25 g
$80.90
1/EA
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45-184225-100G 100 g
$144.00
1/EA
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composition hydrogen fluoride, ~70%
  pyridine, ~30%
density 1.1 g/mL at 20 °C (lit.)
form liquid
InChI 1S/C5H5N.FH/c1-2-4-6-5-3-1;/h1-5H;1H
InChI key GRJJQCWNZGRKAU-UHFFFAOYSA-N
Quality Level 200 
SMILES string F[H].c1ccncc1
storage temp. −20°C
Application: Convenient form of anhydrous HF, stable up to 50°C. Has been used for the preparation of β-fluoroamines from amino alcohols and for the fluorination of acetylenes.
Used together with hypervalent iodine(III) reagents for ipso-fluorination of para-substituted phenols providing cyclohexadienones. Employed with Selectfluor (Catalog No. 439479) for geminal fluorination of 2,2-diaryl-1,3-dithiolanes.
Application: Reactant for preparation of:
• Epimers of shikimic acid with the features of fucosylated glycans via zinc-mediated reductive ring opening followed by a Barbier reaction
• Vaccinia H1-related (VHR) phosphatase inhibitor with a nonacidic phosphate-mimicking core structure
• Candidates for nucleic acid drugs
• ω-substituted gem-difluoroalkanes by oxidative desulfurization-difluorination

Reagent for:
• Halofluorination reactions
General description: May contain or form low levels of calcium fluoride during storage. Presence of this does not impact the specification values.
Legal Information: Selectfluor is a registered trademark of Merck KGaA, Darmstadt, Germany
Legal Information: Sure/Pac is a trademark of Sigma-Aldrich Co. LLC
Packaging: 25, 100 g in poly bottle
Density 1.1 g/mL at 20 °C (lit.)
Storage Temp. −20°C
UNSPSC 12352301

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