Potassium Carbonate → 1-(2-Bromo-5-chlorobenzyloxy)-4-(2-methoxyethoxy)benzene
Reaction equation
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([Cl:8])=[CH:4][C:3]=1[CH2:9]Br.C([O-])([O-])=O.[K+].[K+].[CH3:17][O:18][CH2:19][CH2:20][O:21][C:22]1[CH:27]=[CH:26][C:25]([OH:28])=[CH:24][CH:23]=1>C(#N)C>[Br:1][C:2]1[CH:7]=[CH:6][C:5]([Cl:8])=[CH:4][C:3]=1[CH2:9][O:28][C:25]1[CH:24]=[CH:23][C:22]([O:21][CH2:20][CH2:19][O:18][CH3:17])=[CH:27][CH:26]=1Participants
5
Procedure
1.42 g (5 mmol) of the compound obtained in Step 1 was dissolved in 20 ml of acetonitrile, 1.38 g (10 mmol) of K2CO3 and 0.84 g (5 mmol) of 4-(2-methoxyethoxy)phenol were added thereto, which was refluxed for 15 hours. The reaction mixture was distilled under a reduced pressure to remove the solvent, and 20 ml of ethyl acetate was added thereto. The resulting mixture was washed twice with water, dried over anhydrous MgSO4, and concentrated under a reduced pressure. The concentrate was subjected to column chromatography using 20% ethyl acetate/hexane to obtain 1.76 g (yield 95%) of 1-(2-bromo-5-chlorobenzyloxy)-4-(2-methoxyethoxy)benzene.
Workup
- temperaturewhich was refluxed for 15 hours
- distillationThe reaction mixture was distilled under a reduced pressure
- customto remove the solvent, and 20 ml of ethyl acetate
- additionwas added
- washThe resulting mixture was washed twice with water
- dry with materialdried over anhydrous MgSO4
- concentrationconcentrated under a reduced pressure
Sources & evidence
- ORD record
- ord-5001812fa407443ea43441d9099adb3a
- Source dataset
- uspto-grants-2012_07
- Patent number
- US08227456B2
Reaction notes
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