Water → HCID 59226970, Verbindung

HRID 888456Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 888456
[CH3:1][C:2]1[CH:7]=[C:6]([C:8]([F:17])([C:13]([F:16])([F:15])[F:14])[C:9]([F:12])([F:11])[F:10])[CH:5]=[C:4]([CH3:18])[C:3]=1[NH:19][C:20](=[O:31])[C:21]1[CH:26]=[CH:25][C:24](F)=[C:23]([N+:28]([O-:30])=[O:29])[CH:22]=1.[C-:32]#[N:33].[Na+].O>CN(C)C=O>[C:32]([C:24]1[CH:25]=[CH:26][C:21]([C:20]([NH:19][C:3]2[C:2]([CH3:1])=[CH:7][C:6]([C:8]([F:17])([C:13]([F:15])([F:16])[F:14])[C:9]([F:12])([F:10])[F:11])=[CH:5][C:4]=2[CH3:18])=[O:31])=[CH:22][C:23]=1[N+:28]([O-:30])=[O:29])#[N:33]

Komponenten

5

Edukt 3

HCID 962WaterHCID 8929Sodium CyanideHCID 592023834-Fluoro-N-[4-(1,1,1,2,3,3,3-heptafluoropropan-2-yl)-2,6-dimethylphenyl]-3-nitrobenzamide

Produkt 1

HCID 59226970HCID 59226970, VerbindungAusbeute 49,1 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

To a solution of N[2,6-dimethyl-4-(1,2,2,2-tetrafluoro-1-trifluoromethyl-ethyl)-phenyl]-4-fluoro-3-nitro-benzamide (2.008 g, 4.4 mmol) (prepared according to WO 05/073165) in N,N-dimethylformamide (25 ml) was added sodium cyanide (0.237 g, 4.84 mmol). The reaction mixture was stirred at ambient temperature for 48 hours. Then water (20 ml) was added and the organic phase extracted three times with ethyl acetate (3×100 ml). The combined organic extracts were washed with water and brine, dried over sodium sulfate and concentrated. The residue was purified by column chromatography on silica gel (eluent: cyclohexane/ethyl acetate 1:4) to give 4-cyano-N-[2,6-dimethyl-4-(1,2,2,2-tetrafluoro-1-trifluoromethyl-ethyl)-phenyl]-3-nitro-benzamide (1.0 g, 49% yield). 1H-NMR (400 MHz, CDCl3): 8.85 (d, 1H), 8.38 (q, 1H), 8.11 (d, 1H), 7.55 (s, 1H), 7.40 (s, 2H), 2.33 (s, 6H) ppm.

Aufarbeitung

  1. extractionthe organic phase extracted three times with ethyl acetate (3×100 ml)
  2. washThe combined organic extracts were washed with water and brine
  3. dry with materialdried over sodium sulfate
  4. concentrationconcentrated
  5. customThe residue was purified by column chromatography on silica gel (eluent: cyclohexane/ethyl acetate 1:4)

Quellen und Nachweise

ORD-Eintrag
ord-dacf33cd734a4ae0ba61c2fd3f8684ef
Quelldatensatz
uspto-grants-2012_08
Patentnummer
US08247594B2

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