Water → HCID 9212449, compound
Reaction equation
Br[C:2]1[CH:7]=[CH:6][C:5]([Cl:8])=[CH:4][C:3]=1[N+:9]([O-:11])=[O:10].[CH3:12][C:13]([C:15]1[CH:16]=[CH:17][C:18]([OH:21])=[CH:19][CH:20]=1)=[O:14].C([O-])([O-])=O.[K+].[K+].O>CN(C=O)C>[Cl:8][C:5]1[CH:6]=[CH:7][C:2]([O:21][C:18]2[CH:19]=[CH:20][C:15]([C:13](=[O:14])[CH3:12])=[CH:16][CH:17]=2)=[C:3]([N+:9]([O-:11])=[O:10])[CH:4]=1Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 80 °C
Procedure
1-Bromo-4-chloro-2-nitrobenzene (5 g, 21.2 mmol) was added to a solution of 4-hydroxyacetophenone (2.87 g, 21.1 mmol), and K2CO3 (7.28 g, 0.052 mol) in DMF (50 mL). The mixture was heated at 80° C. for 15 h. The reaction was poured into water. The aqueous phase was extracted with ethyl acetate (2×) and the combined phases were washed with water, brine, and dried over sodium sulfate, filtered and concentrated under vacuum giving the crude title compound. The crude product was purified by flash chromatography eluting with (hexanes/ethyl acetate 70:30) to give the title compound (4.8 g, 77.8%).
Workup
- extractionThe aqueous phase was extracted with ethyl acetate (2×)
- washthe combined phases were washed with water, brine
- dry with materialdried over sodium sulfate
- filtrationfiltered
- concentrationconcentrated under vacuum
- customgiving the crude title compound
- customThe crude product was purified by flash chromatography
- washeluting with (hexanes/ethyl acetate 70:30)
Sources & evidence
- ORD record
- ord-a1bbe6eba0ed4ae2925adbca5610ec13
- Source dataset
- uspto-grants-2010_07
- Patent number
- US07763731B2
Reaction notes
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