HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
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
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
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| Edukt | 1-(2-methoxy-4-nitrophenyl)-4-methyl-1H-imidazole | HCID 45480180 | — |
| Katalysator | Palladium | HCID 23938 | — |
| Lösungsmittel | Methanol | HCID 887 | — |
| Produkt | 3-methoxy-4-(4-methyl-1H-imidazol-1-yl)aniline | HCID 45480181 | 100,6% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patentnummer | US08486952B2 |
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| Quelldatensatz | uspto-grants-2013_07 |
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| ORD ID | ord-29e8c83c3398439d84d12b34704aaaf7 |
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| Quellennotiz | uspto-grants-2013_07 |
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