p-Fluoronitrobenzene → 2,6-Ditert-butyl-4-(4-nitrophenyl)phenol
Reaction equation
[C:1]([C:5]1[CH:10]=[CH:9][CH:8]=[C:7]([C:11]([CH3:14])([CH3:13])[CH3:12])[C:6]=1[OH:15])([CH3:4])([CH3:3])[CH3:2].C(=O)([O-])[O-].[K+].[K+].F[C:23]1[CH:28]=[CH:27][C:26]([N+:29]([O-:31])=[O:30])=[CH:25][CH:24]=1>CS(C)=O>[C:11]([C:7]1[CH:8]=[C:9]([C:23]2[CH:28]=[CH:27][C:26]([N+:29]([O-:31])=[O:30])=[CH:25][CH:24]=2)[CH:10]=[C:5]([C:1]([CH3:4])([CH3:3])[CH3:2])[C:6]=1[OH:15])([CH3:14])([CH3:13])[CH3:12]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
8.40 g (40.7 mmol) 2,6-di-tert-butylphenol was dissolved in 100 ml dried DMSO. 8 g (58 mmol) potassium carbonate and 7.6 g (54 mmol) p-fluoronitrobenzene were added into the DMSO solution. The DMSO solution was heated to 100˜120° C. for 12 hrs with stirring. Then the reaction mixture was allowed to cool to room temperature and poured into distilled water. The aqueous solution was acidified to pH 2˜4 and yellow precipitate was collected by filtration. The yellow precipitate was washed with water and dried. The crude yield was 75%. The yellow precipitate was purified by recrystallizing in cyanomethane, mp 157˜160° C.
Workup
- additionpoured
- distillationinto distilled water
- filtrationwas collected by filtration
- washThe yellow precipitate was washed with water
- customdried
- customThe yellow precipitate was purified
- customby recrystallizing in cyanomethane
Sources & evidence
- ORD record
- ord-63242472b8d54ccd9230861bfa7c5199
- Source dataset
- uspto-grants-2008_01
- Patent number
- US07317110B2
Reaction notes
Loading…