Hydrochloric Acid → 6-(4-Hydroxy-3-trifluoromethyl-phenyl)-1-methyl-1H-imidazo[4,5-c]pyridine-4-carbonitrile
Reaktionsgleichung
COCCOC[O:7][C:8]1[CH:13]=[CH:12][C:11]([C:14]2[N:19]=[C:18]([C:20]#[N:21])[C:17]3[N:22]=[CH:23][N:24]([CH3:25])[C:16]=3[CH:15]=2)=[CH:10][C:9]=1[C:26]([F:29])([F:28])[F:27].Cl.[Cl-].[Na+]>C1COCC1>[OH:7][C:8]1[CH:13]=[CH:12][C:11]([C:14]2[N:19]=[C:18]([C:20]#[N:21])[C:17]3[N:22]=[CH:23][N:24]([CH3:25])[C:16]=3[CH:15]=2)=[CH:10][C:9]=1[C:26]([F:29])([F:28])[F:27]Komponenten
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 65 °C
Versuchsvorschrift
6-(4-(2-Methoxy-ethoxymethoxy)-3-trifluoromethyl-phenyl)-1-methyl-1H-imidazo[4,5-c]pyridine-4-carbonitrile (7.5 g) was added to a mixed solvent of THF (300 ml) and 1M HCl (aq). The mixture was heated to 65° C. until the full disappearance of all starting material. After adding saturated sodium chloride solution (200 ml), the mixture was extracted with ethyl acetate (300 ml×3), and the combined organic layers were then dried over sodium sulphate, solvent was removed under reduced pressure, and the residue was triturated in ether. Product, 6-(4-hydroxy-3-trifluoromethyl-phenyl)-1-methyl-1H-imidazo[4,5-c]pyridine-4-carbonitrile (5.9 g) was collected by filtration. 1H NMR (CD3OD) δ: 8.45 (s, 1H); 8.34 (s, 1H); 8.29 (s, 1H); 8.20 (m, 1H); 7.09 (m, 1H); 4.04 (s, 3H). MS m/z 319 (M+1).
Aufarbeitung
- extractionthe mixture was extracted with ethyl acetate (300 ml×3)
- dry with materialthe combined organic layers were then dried over sodium sulphate, solvent
- customwas removed under reduced pressure
- customthe residue was triturated in ether
- filtrationProduct, 6-(4-hydroxy-3-trifluoromethyl-phenyl)-1-methyl-1H-imidazo[4,5-c]pyridine-4-carbonitrile (5.9 g) was collected by filtration
Quellen und Nachweise
- ORD-Eintrag
- ord-17e4b393ffba47ccbed59bc0844b8c20
- Quelldatensatz
- uspto-grants-2011_09
- Patentnummer
- US08026236B2
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