2-Isopropyl-5-nitropyridine → 6-(Propan-2-yl)pyridin-3-amine

HRID 423907Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 423907
[CH:1]([C:4]1[CH:9]=[CH:8][C:7]([N+:10]([O-])=O)=[CH:6][N:5]=1)([CH3:3])[CH3:2]>CO.[Ni]>[CH:1]([C:4]1[CH:9]=[CH:8][C:7]([NH2:10])=[CH:6][N:5]=1)([CH3:3])[CH3:2]

Komponenten

4

Edukt 1

HCID 450963212-Isopropyl-5-nitropyridine

Produkt 1

HCID 178542886-(Propan-2-yl)pyridin-3-amineAusbeute 52 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 935NickelKatalysatorHCID 887MethanolLösungsmittel

Versuchsvorschrift

2-Isopropyl-5-nitro-pyridine (1.30 g, 7.82 mmol) was dissolved in methyl alcohol (20 mL), and Raney Ni (0.25 g) was added. The mixture was stirred under H2 (1 atm) at room temperature for 2 h. The catalyst was filtered off, and the filtrate was concentrated under vacuum to give 2-isopropyl-5-amino-pyridine (E-9) (0.55 g, 52%). 1H NMR (CDCl3) δ 8.05 (s, 1 H), 6.93-6.99 (m, 2 H), 3.47 (br s, 2 H), 2.92-3.02 (m, 1 H), 1.24-1.26 (m, 6 H). ESI-MS 137.2 m/z (MH+).

Aufarbeitung

  1. filtrationThe catalyst was filtered off
  2. concentrationthe filtrate was concentrated under vacuum

Quellen und Nachweise

ORD-Eintrag
ord-d497a648cf5e44ddaea4ca283d71d26e
Quelldatensatz
uspto-grants-2012_01
Patentnummer
US08101767B2

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