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HRID 451008Erstellt: 24. Oktober 2026

1-(2-methoxy-4-nitrophenyl)-4-methyl-1H-imidazole → 3-methoxy-4-(4-methyl-1H-imidazol-1-yl)aniline

https://huagongshe.com/de/reaction/451008

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
Edukt1-(2-methoxy-4-nitrophenyl)-4-methyl-1H-imidazoleHCID 45480180—
KatalysatorPalladiumHCID 23938—
LösungsmittelMethanolHCID 887—
Produkt3-methoxy-4-(4-methyl-1H-imidazol-1-yl)anilineHCID 45480181100,6%

Reaktionsschritte

10% Palladium on carbon (250 mg) was added under an atmosphere of nitrogen to a chilled (ice-water bath) solution of 1-(2-methoxy-4-nitrophenyl)-4-methyl-1H-imidazole (2.56 g, 11.0 mmol) dissolved in methanol (150 mL). The flask was repeated evacuated and flushed with hydrogen gas (double balloon). The resulting mixture was allowed to warm to rt and left to stir for 18 h under the hydrogen atmosphere. Purged with nitrogen gas. Filtered the crude reaction mixture through a short diatomaceous earth (Celite®) plug. Rinsed reaction vessel and plug with methanol. Concentrated filtrate in vacuo. Dried residue on high vacuum overnight to afford 3-methoxy-4-(4-methyl-1H-imidazol-1-yl)aniline (2.25 g, 100% yield) as a blackish/grey waxy solid. LC-MS (M+H)+204.1. 1H NMR (500 MHz, CDCl3) δ ppm 7.69 (s, 1H) 7.01 (d, J=8.55 Hz, 1H) 6.82 (s, 1H) 6.33 (d, J=2.14 Hz, 1H) 6.30 (d, J=8.55 Hz, 1H) 3.78 (s, 3H) 2.33 (s, 3H).

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS08486952B2
Quelldatensatzuspto-grants-2013_07
ORD IDord-29e8c83c3398439d84d12b34704aaaf7
Quellennotizuspto-grants-2013_07