4-Hydroxybiphenyl → HCID 18379631, compound
Reaction equation
C(=O)([O-])[O-].[K+].[K+].[CH:7]([N:20]1[CH2:23][CH:22]([O:24]S(C)(=O)=O)[CH2:21]1)([C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1)[C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1.[C:29]1([C:35]2[CH:40]=[CH:39][C:38](O)=[CH:37][CH:36]=2)[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=1>CN(C)C=O>[CH:7]([N:20]1[CH2:23][CH:22]([O:24][C:38]2[CH:39]=[CH:40][C:35]([C:29]3[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=3)=[CH:36][CH:37]=2)[CH2:21]1)([C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1)[C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1Participants
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
Potassium carbonate (2.39 g, 17.4 mmol) was added to a stirred mixture of 1-benzhydryl-3-methanesulphonyloxyazetidine (J.Org.Chem., 1972, 37, 3953; 5 g, 15.8 mmol), 4-phenylphenol (2.95 g, 17.4 mmol) and anhydrous dimethylformamide (65 ml), then the resulting mixture heated under reflux for 4 hours, allowed to cool and partitioned between ethyl acetate and water. The organic phase was separated, washed with saturated brine, dried (MgSO4) and evaporated under reduced pressure, then the residue purified by flash chromatography, using hexane:ethyl acetate (95:5) as eluant, to give the title compound (1.32 g) as a colourless, amorphous solid. δ(CDCl3): 3.17 (dd,2H), 3.75 (dd,2H), 4.43 (s,2H), 4.83 (m,1H), 6.81 (d,1H), 7.16-7.55 (m,17H).
Workup
- temperaturethe resulting mixture heated
- temperatureunder reflux for 4 hours
- temperatureto cool
- custompartitioned between ethyl acetate and water
- customThe organic phase was separated
- washwashed with saturated brine
- dry with materialdried (MgSO4)
- customevaporated under reduced pressure
- customthe residue purified by flash chromatography
Sources & evidence
- ORD record
- ord-bf143752ba5f4f8e8ebf99806c567e3e
- Source dataset
- uspto-grants-2002_12
- Patent number
- US06495568B1
Reaction notes
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