3-methoxy-4-(4-methylimidazole)benzenamine synthesis
- Product Name:3-methoxy-4-(4-methylimidazole)benzenamine
- CAS Number:958245-18-6
- Molecular formula:C11H13N3O
- Molecular Weight:203.24
958245-17-5
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958245-18-6
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Yield:958245-18-6 100%
Reaction Conditions:
with hydrogen;palladium 10% on activated carbon in methanol at 20;Inert atmosphere of nitrogen;Cooling with ice-water;
Steps:
D.2
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-lH-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-l H-imidazol- l-yl)aniline (2.25 g, 100 % yield) as a blackish/grey waxy solid . LC-MS (M+H)+ 204.1. 1H NMR (SOO MHz, chloroform-J) δ ppm 7.69 (s, 1 H ) 7.01 (d, J-8.55 Hz, 1 H) 6.82 (s, 1 H) 6.33 (d, J-2.14 Hz, 1 H) 6.30 (d, J-8.55 Hz, 1 H) 3.78 (s, 3 H) 2.33 (s, 3 H).
References:
WO2010/83141,2010,A1 Location in patent:Page/Page column 36
1009-36-5
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958245-18-6
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454-16-0
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958245-18-6
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2139-44-8
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958245-18-6
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