Ethyl Acetate → HCID 57968785, compound
Reaction equation
F[C:2]1[CH:9]=[CH:8][C:5]([CH:6]=[O:7])=[CH:4][CH:3]=1.[Br:10][C:11]1[CH:16]=[CH:15][C:14]([OH:17])=[CH:13][C:12]=1[CH2:18][OH:19].C([O-])([O-])=O.[K+].[K+].CCOC(C)=O>CN(C=O)C.O>[Br:10][C:11]1[CH:16]=[CH:15][C:14]([O:17][C:2]2[CH:9]=[CH:8][C:5]([CH:6]=[O:7])=[CH:4][CH:3]=2)=[CH:13][C:12]=1[CH2:18][OH:19]Participants
Conditions
- Temperature
- 80 °C
Procedure
To a solution of 4-fluoro-benzaldehyde (5.4 mL, 50.0 mmol, 1.0 eq.), 4-bromo-3-hydroxymethyl-phenol (10.6 g, 50.0 mmol, 1.0 eq.) in DMF (140.0 mL) was added K2CO3 (8.3 g, 60.0 mmol, 1.2 eq.) under nitrogen atmosphere. The mixture was heated at 80° C. overnight. After cooling to room temperature, the mixture was poured into EtOAc (10 mL) and sat. H2O (100 mL). The layers were separated and the aqueous phase was extracted with EtOAc (3×100 mL). Combined organic extracts was washed with brine (100 mL), dried over MgSO4, filtered and the filtrate was concentrated under reduced pressure. The residue was applied to silica chromatography eluting with MeOH/DCM (0:100 to 10:90) to give 4-(4-bromo-3-hydroxymethyl-phenoxy)-benzaldehyde as a yellow oil. 1H NMR (CHLOROFORM-d) δ: 9.93 (s, 1H), 7.80-7.89 (m, 2H), 7.55 (d, J=8.6 Hz, 1H), 7.27 (d, J=3.1 Hz, 1H), 7.06 (d, J=8.7 Hz, 2H), 6.89 (dd, J=8.6, 2.9 Hz, 1H), 4.74 (s, 2H). Amount obtained, 15.2 g, 99% yield.
Workup
- temperatureAfter cooling to room temperature
- customThe layers were separated
- extractionthe aqueous phase was extracted with EtOAc (3×100 mL)
- washCombined organic extracts was washed with brine (100 mL)
- dry with materialdried over MgSO4
- filtrationfiltered
- concentrationthe filtrate was concentrated under reduced pressure
- washeluting with MeOH/DCM (0:100 to 10:90)
Sources & evidence
- ORD record
- ord-aba21058601f4ff99e9b8f867f0efc78
- Source dataset
- uspto-grants-2011_10
- Patent number
- US08039450B2
Reaction notes
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