Hydrochloric Acid → 1H-Imidazole-2-propanol, 5-((3,5-dichlorophenyl)thio)-1-(2-hydroxyethyl)-4-(1-methylethyl)-
Reaction equation
Cl.C([O:9][CH2:10][CH2:11][CH2:12][C:13]1[N:14]([CH2:30][CH2:31][OH:32])[C:15]([S:21][C:22]2[CH:27]=[C:26]([Cl:28])[CH:25]=[C:24]([Cl:29])[CH:23]=2)=[C:16]([CH:18]([CH3:20])[CH3:19])[N:17]=1)C1C=CC=CC=1.C(=O)([O-])O.[Na+]>>[Cl:29][C:24]1[CH:23]=[C:22]([S:21][C:15]2[N:14]([CH2:30][CH2:31][OH:32])[C:13]([CH2:12][CH2:11][CH2:10][OH:9])=[N:17][C:16]=2[CH:18]([CH3:20])[CH3:19])[CH:27]=[C:26]([Cl:28])[CH:25]=1Participants
4
Conditions
- Temperature
- 110 °C
Procedure
To 14 ml of concentrated hydrochloric acid, 1.4 g (2.9 mmol) of the alcohol (136e) was added and the mixture was heated at 110° C. For 7 hours. After cooling, the mixture was neutralized with sodium hydrogen carbonate and extracted with ethyl acetate. The extract was washed with water, dried over sodium sulfate, filtered, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (5% methanol-ethyl acetate) to provide 300 mg (yield 26%) of 3-(5-(3,5-dichlorophenylthio)-1-(2-hydroxyethyl)-4-isopropyl-1H-imidazol-2-yl)-propan-1-ol (137d) as oil.
Workup
- temperatureAfter cooling
- extractionextracted with ethyl acetate
- washThe extract was washed with water
- dry with materialdried over sodium sulfate
- filtrationfiltered
- concentrationconcentrated under reduced pressure
- customThe residue was purified by silica gel column chromatography (5% methanol-ethyl acetate)
Sources & evidence
- ORD record
- ord-55af980e02794eb59d6d4d8c004f417d
- Source dataset
- uspto-grants-2000_11
- Patent number
- US06147097
Reaction notes
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