2-(1,3-Dioxolan-2-yl)-5-fluoro-3-nitropyridine → 2-(1,3-Dioxolan-2-yl)-5-fluoropyridin-3-amine

HRID 473425Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 473425
[O:1]1[CH2:5][CH2:4][O:3][CH:2]1[C:6]1[C:11]([N+:12]([O-])=O)=[CH:10][C:9]([F:15])=[CH:8][N:7]=1>C(O)C.[Pd]>[O:1]1[CH2:5][CH2:4][O:3][CH:2]1[C:6]1[C:11]([NH2:12])=[CH:10][C:9]([F:15])=[CH:8][N:7]=1

Komponenten

4

Edukt 1

HCID 583186012-(1,3-Dioxolan-2-yl)-5-fluoro-3-nitropyridine

Produkt 1

HCID 583186212-(1,3-Dioxolan-2-yl)-5-fluoropyridin-3-amine

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 23938PalladiumKatalysatorHCID 702EthanolLösungsmittel

Reaktionsbedingungen

Temperatur
25 °C

Versuchsvorschrift

To a solution of 2-(1,3-dioxolan-2-yl)-5-fluoro-3-nitropyridine (10 g, 46.69 mmol) in ethanol (140 mL) was added Pd/C (1 g) under nitrogen atmosphere. The reaction mixture was stirred for overnight under hydrogen atmosphere at 25° C. The reaction mixture was filtered through Celite™ and washed with EtOH. The filtrate was concentrated in vacuo and residue was purified by column chromatography on silica gel using 0-40% EtOAc in hexane to give 2-(1,3-dioxolan-2-yl)-5-fluoropyridin-3-amine: LC-MS (ESI) m/z 185.2 [M+H]+.

Aufarbeitung

  1. filtrationThe reaction mixture was filtered through Celite™
  2. washwashed with EtOH
  3. concentrationThe filtrate was concentrated in vacuo and residue
  4. customwas purified by column chromatography on silica gel using 0-40% EtOAc in hexane

Quellen und Nachweise

ORD-Eintrag
ord-240e2ea14cb44ba8968023eae600c48d
Quelldatensatz
uspto-grants-2014_01
Patentnummer
US08633313B2

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