Hydrochloric Acid → 2-fluoro-4-(1H-1,2,4-triazol-1-yl)benzonitrile

HRID 1788139Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1788139
Cl.[F:2][C:3]1[CH:8]=[CH:7][C:6](CN)=[C:5]([N:11]2[CH:15]=[N:14][CH:13]=[N:12]2)[CH:4]=1.FC1C=CC([C:21]#[N:22])=C(N2C=NC=N2)C=1.Cl>C(O)C.[Pd]>[N:11]1([C:5]2[CH:6]=[CH:7][C:8]([C:21]#[N:22])=[C:3]([F:2])[CH:4]=2)[CH:15]=[N:14][CH:13]=[N:12]1

Komponenten

6

Edukt 3

HCID 313Hydrochloric AcidHCID 210698804-fluoro-2-(1H-1,2,4-triazol-1-yl)benzonitrileHCID 21069882(4-Fluoro-2-(1H-1,2,4-triazol-1-yl)phenyl)methanamine hydrochloride

Produkt 1

HCID 210698712-fluoro-4-(1H-1,2,4-triazol-1-yl)benzonitrileAusbeute 99 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 23938PalladiumKatalysatorHCID 702EthanolLösungsmittel

Versuchsvorschrift

(4-Fluoro-2-(1H-1,2,4-triazol-1-yl)phenyl)methanamine hydrochloride). Intermediate 67, 4-fluoro-2-(1H-1,2,4-triazol-1-yl)benzonitrile, (2.46 g, 13.13 mmol) was dissolved in hot ethanol (150 mL). To this was added 1N HCl (15 mL) followed by 10% Pd—C (200 mg). The mixture was treated with H2 at 55 psi for 4 h in a Parr shaker then filtered over Celite and the solvent removed under reduced pressure. The resulting residue was partitioned between ethyl acetate and water. The aqueous phase was separated and lyophilized to afford the title compound as a white powder (2.96 g, 99% yield). 1H NMR (500 MHz, CD3OD) δ ppm: 9.51 (1H, s), 8.63 (1H, s), 7.85 (1H, dd, J=8.5, 5.8 Hz), 7.68 (1H, dd, J=8.8, 2.4 Hz), 7.49 (1H, td, J=8.3, 2.4 Hz), 4.20 (2H, s). LCMS (M+H) calcd for C9H10N4F: 193.08; found: 193.16.

Aufarbeitung

  1. additionThe mixture was treated with H2 at 55 psi for 4 h in a Parr shaker
  2. filtrationthen filtered over Celite
  3. customthe solvent removed under reduced pressure
  4. customThe resulting residue was partitioned between ethyl acetate and water
  5. customThe aqueous phase was separated

Quellen und Nachweise

ORD-Eintrag
ord-ea34a7e330bd406f98bf6c5b058cab7f
Quelldatensatz
uspto-grants-2009_03
Patentnummer
US07511037B2

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