4-Fluorophenol → HCID 57782285, compound
Reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([OH:8])=[CH:4][CH:3]=1.[C:9]([O-:12])([O-])=O.[Cs+].[Cs+].[CH3:15][N:16]1[C:21](=O)[N:20]([CH3:23])[CH2:19][CH2:18]C1>CCOC(C)=O.CCCCCC>[CH2:19]([N:20]1[C:23]([CH:9]=[O:12])=[CH:15][N:16]=[C:21]1[O:8][C:5]1[CH:6]=[CH:7][C:2]([F:1])=[CH:3][CH:4]=1)[CH3:18]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 200 °C
Procedure
A suspension of the compound obtained in Example 7-(1) (5.0 g), 4-fluorophenol (2.87 g) and Cs2CO3 (10.4 g) in DMPU (10 ml) was stirred at 200° C. for 1 hour. After cooling to room temperature, the reaction mixture was diluted with methanol/chloroform (1/4) and filtered. The filtrate was concentrated, and the resulting residue was purified by column chromatography (OH-type SiO2, AcOEt/hexane=0% to 30%) to give the titled compound (4.16 g) as a light-pink liquid.
Workup
- additionA suspension of the compound
- temperatureAfter cooling to room temperature
- filtrationfiltered
- concentrationThe filtrate was concentrated
- customthe resulting residue was purified by column chromatography (OH-type SiO2, AcOEt/hexane=0% to 30%)
Sources & evidence
- ORD record
- ord-82e7df02b0c449319b2557fb0eb3c72c
- Source dataset
- uspto-grants-2011_08
- Patent number
- US07994204B2
Reaction notes
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