Water → HCID 86685505, compound
Reaction equation
[Br:1][C:2]1[CH:7]=[C:6]([CH3:8])[C:5]([Cl:9])=[CH:4][C:3]=1[C:10]([OH:13])([CH3:12])[CH3:11].Cl[CH2:15][O:16][CH2:17][CH3:18].CCN(C(C)C)C(C)C.O>C(Cl)Cl>[Br:1][C:2]1[CH:7]=[C:6]([CH3:8])[C:5]([Cl:9])=[CH:4][C:3]=1[C:10]([O:13][CH2:15][O:16][CH2:17][CH3:18])([CH3:11])[CH3:12]Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 40 °C
Procedure
A mixture of 2-(2-bromo-5-chloro-4-methylphenyl)propan-2-ol (4.5 g 17.1 mmol), (chloromethoxy)ethane (3.2 g, 34.2 mmol) and DIPEA (6.6 g, 51.3 mmol) in DCM (50 mL) was stirred at 40° C. overnight under argon. Water (50 mL) was added and the mixture was extracted with DCM (2×50 mL). The combined organic layers were washed with brine, dried over Na2SO4, filtered and concentrated under reduced pressure. The residue was purified by silica gel column chromatography eluted with PE-EA (10:1) to give 1-bromo-4-chloro-2-(2-(ethoxymethoxy)propan-2-yl)-5-methylbenzene (4.27 g, yield 77.5%). 1H NMR (400 MHz, DMSO-d6): δ 7.67 (s, 1H), 7.50 (s, 1H), 4.59 (s, 2H), 3.55 (q, 2H), 2.29 (s, 3H), 1.65 (s, 6H), 1.08 (t, 3H) ppm; MS: m/z=344.8 (M+Na+, ESI+).
Workup
- extractionthe mixture was extracted with DCM (2×50 mL)
- washThe combined organic layers were washed with brine
- dry with materialdried over Na2SO4
- filtrationfiltered
- concentrationconcentrated under reduced pressure
- customThe residue was purified by silica gel column chromatography
- washeluted with PE-EA (10:1)
Sources & evidence
- ORD record
- ord-d0c7a76e264242aebcf97c1e5a7dbe39
- Source dataset
- uspto-grants-2013_10
- Patent number
- US08546357B2
Reaction notes
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