Hydrochloric Acid → HCID 53998100, compound
Reaction equation
[Mg].[CH2:2]([N:9]1[C:13]([C:14](=[O:16])[CH3:15])=[CH:12][N:11]=[CH:10]1)[C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1.Cl.O1[CH2:22][CH2:21][CH2:20][CH2:19]1>>[CH2:2]([N:9]1[C:13]([C:14]([OH:16])([CH2:19][CH2:20][C:21]2[CH:22]=[CH:5][CH:4]=[CH:3][CH:2]=2)[CH3:15])=[CH:12][N:11]=[CH:10]1)[C:3]1[CH:4]=[CH:5][CH:6]=[CH:7][CH:8]=1Participants
5
Procedure
1.0 g of magnesium turnings are covered with 5 ml of dry tetrahydrofuran. To the mixture is added 7.8 g of (2-bromoethyl)benzehe in 30 ml of dry tetrahydrofuran at such a rate that a smooth reaction is maintained. The mixture is then heated under reflux for one hour. After being cooled to room temperature, 3.0 g of 1-(3-benzyl-3H-imidazol-4-yl)-ethanone in 20 ml of tetrahyrofuran is added dropwise to the Grignard reagent and the reaction mixture is refluxed for one hour. The cooled reaction mixture is poured into a cold dilute hydrochloric acid solution. Work-up of the mixture gives the crude product, which is recrystallized from ethyl acetate. The yield is 3.3 g.
Workup
- customthat a smooth reaction
- temperatureis maintained
- temperatureThe mixture is then heated
- temperatureunder reflux for one hour
- temperaturethe reaction mixture is refluxed for one hour
- customThe cooled reaction mixture
Sources & evidence
- ORD record
- ord-24ce03cde6434c6aa55e8cba59e3fed8
- Source dataset
- uspto-grants-2001_11
- Patent number
- US06313311B1
Reaction notes
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