1-Fluoro-2,6-dichloropyridinium Triflate → HCID 58349833, Verbindung

HRID 1426663Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1426663
[F:1][C:2]1[C:7]([C:8]2[NH:12][CH:11]=[C:10]([CH:13]=[O:14])[CH:9]=2)=[CH:6][CH:5]=[CH:4][N:3]=1.[O-]S(C(F)(F)[F:20])(=O)=O.F[N+]1C(Cl)=CC=CC=1Cl>C(#N)C.O1CCCC1.C(=O)([O-])O.[Na+]>[F:20][C:9]1[C:10]([CH:13]=[O:14])=[CH:11][NH:12][C:8]=1[C:7]1[C:2]([F:1])=[N:3][CH:4]=[CH:5][CH:6]=1

Komponenten

6

Edukt 2

HCID 27373111-Fluoro-2,6-dichloropyridinium TriflateHCID 58349828HCID 58349828, Verbindung

Produkt 1

HCID 58349833HCID 58349833, VerbindungAusbeute 15,2 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 6342AcetonitrileLösungsmittelHCID 8028TetrahydrofuranLösungsmittelHCID 516892Sodium BicarbonateLösungsmittel

Versuchsvorschrift

5-(2-Fluoropyridin-3-yl)-1H-pyrrole-3-carbaldehyde (660 mg) was dissolved in acetonitrile (30 mL) and tetrahydrofuran (30 mL), 1-fluoro-2,6-dichloropyridinium triflate (1.32 g) was added, and the mixture was stirred for 2 hr. The reaction mixture was diluted with saturated aqueous sodium hydrogen carbonate solution, and extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (eluent: hexane-ethyl acetate=3:2→3:7) to give the title compound as pale-yellow crystals (yield 110 mg, 15%).

Aufarbeitung

  1. extractionextracted with ethyl acetate
  2. washThe extract was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was purified by silica gel column chromatography (eluent: hexane-ethyl acetate=3:2→3:7)

Quellen und Nachweise

ORD-Eintrag
ord-970ef6308c754e219258abd8596786ee
Quelldatensatz
uspto-grants-2015_01
Patentnummer
US08933105B2

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