Hydrochloric Acid → [1-Benzyl-5-(3,5-dichlorophenylthio)-4-isopropyl-1H-imidazol-2-yl]methanol
Reaction equation
[CH2:1]([N:8]1[C:12]([S:13][C:14]2[CH:19]=[C:18]([Cl:20])[CH:17]=[C:16]([Cl:21])[CH:15]=2)=[C:11]([CH:22]([CH3:24])[CH3:23])[N:10]=[C:9]1[CH2:25][O:26]CC1C=CC(OC)=CC=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Cl>CO>[CH2:1]([N:8]1[C:12]([S:13][C:14]2[CH:19]=[C:18]([Cl:20])[CH:17]=[C:16]([Cl:21])[CH:15]=2)=[C:11]([CH:22]([CH3:24])[CH3:23])[N:10]=[C:9]1[CH2:25][OH:26])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1Participants
Conditions
- Temperature
- 60 °C
Procedure
To 25 ml of methanol was dissolved 1.41 g (2.67 mmol)of 1-benzyl-5-(3,5-dichlorophenylthio )-4-isopropyl-2-(p-methoxybenzyloxymethyl)-1H-imidazole (17f), followed by addition of 12.5 ml of 6N-hydrochloric acid at room temperature with stirring, and the mixture was stirred under heating at 60° C. for 3 hour. This reaction mixture was concentrated under reduced pressure, the residual solution was neutralized with a saturated aqueous solution of sodium bicarbonate to be weakly basic, and was extracted with methylene chloride. The extract was rinsed with water, and then, was dried over magnesium sulfate, and the solvent was concentrated under reduced pressure. The residue was crystalized from n-hexane and collected by filtration to give 1.0 g (yield 92%)of [1-benzyl-5-(3,5-dichlorophenylthio)-4-isopropyl-1H-imidazol-2-yl]methanol (Compound I-16). mp 121-124° C.
Workup
- stirringthe mixture was stirred
- concentrationThis reaction mixture was concentrated under reduced pressure
- extractionwas extracted with methylene chloride
- washThe extract was rinsed with water
- dry with materialwas dried over magnesium sulfate
- concentrationthe solvent was concentrated under reduced pressure
- customThe residue was crystalized from n-hexane
- filtrationcollected by filtration
Sources & evidence
- ORD record
- ord-6771b1bedb7b45c5a29adf2cd0f62caa
- Source dataset
- uspto-grants-1999_06
- Patent number
- US05910506
Reaction notes
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