Dichloromethane methanol → Methyl 2-methoxy-4-nitrobenzeneacetate
Reaction equation
[CH3:1][O:2][C:3]1[CH:8]=[C:7]([N+:9]([O-:11])=[O:10])[CH:6]=[CH:5][C:4]=1[CH2:12][C:13]([OH:15])=[O:14].CO.Cl[CH2:19]Cl>>[CH3:1][O:2][C:3]1[CH:8]=[C:7]([N+:9]([O-:11])=[O:10])[CH:6]=[CH:5][C:4]=1[CH2:12][C:13]([O:15][CH3:19])=[O:14]Participants
3
Procedure
To a solution of 2-(2-methoxy-4-nitrophenyl)acetic acid (step 2, 1.2 g, 5.5 mmol) in methanol/dichloromethane (11 ml, 1/1) was added trimethylsillyldiazomethane (2 M, 5.6 ml, 11.8 mmol) and stirred for 10 min at room temperature. The mixture was quenched with saturated citric acid aqueous solution and the extracted with ethyl acetate (3×20 ml). The organic layer was washed with brine, dried (MgSO4) and concentrated to give 1.2 g of title compound as orange solid.
Workup
- customThe mixture was quenched with saturated citric acid aqueous solution
- extractionthe extracted with ethyl acetate (3×20 ml)
- washThe organic layer was washed with brine
- dry with materialdried (MgSO4)
- concentrationconcentrated
Sources & evidence
- ORD record
- ord-6effe4c966fa4375b74ce1b86a94957b
- Source dataset
- uspto-grants-2006_11
- Patent number
- US07141580B2
Reaction notes
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