Potassium Carbonate → HCID 23157441, compound
Reaction equation
[CH2:1]([O:8][C:9]1[C:14]([C:15]2[CH:20]=[CH:19][C:18]([OH:21])=[CH:17][CH:16]=2)=[CH:13][C:12]([C:22]([O:24][CH3:25])=[O:23])=[CH:11][CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH2:26]([O:28][CH2:29][CH2:30]Cl)[CH3:27].C(=O)([O-])[O-].[K+].[K+]>CN(C)C=O.C(OCC)(=O)C>[CH2:1]([O:8][C:9]1[C:14]([C:15]2[CH:20]=[CH:19][C:18]([O:21][CH2:27][CH2:26][O:28][CH2:29][CH3:30])=[CH:17][CH:16]=2)=[CH:13][C:12]([C:22]([O:24][CH3:25])=[O:23])=[CH:11][CH:10]=1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1Participants
Conditions
- Temperature
- 60 °C
Procedure
A solution of methyl 6-(benzyloxy)-4′-hydroxybiphenyl-3-carboxylate (5.0 g, 15.0 mmol), 2-chloroethyl ethyl ether (2.1 mL, 19.1 mmol) and potassium carbonate (3.1 g, 22.4 mmol) in N,N-dimethylformamide (50 mL) was stirred at 60° C. for 24 hr. 2-Chloroethyl ethyl ether (2.0 mL, 18.2 mmol) and potassium carbonate (3.0 g, 21.8 mmol) were further added to the reaction solution, and the mixture was stirred at 60° C. for 2 days. The reaction solution was diluted with ethyl acetate, washed successively with water and brine, dried over magnesium sulfate, and concentrated under reduced pressure. The obtained residue was subjected to silica gel column chromatography (ethyl acetate:hexane=1:10-1:3) to give the title compound (6.0 g, yield 99%) as a colorless oil.
Workup
- washwashed successively with water and brine
- dry with materialdried over magnesium sulfate
- concentrationconcentrated under reduced pressure
Sources & evidence
- ORD record
- ord-1bf0da652a164fc2a58268d389dbc544
- Source dataset
- uspto-grants-2010_08
- Patent number
- US07786165B2
Reaction notes
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