Ethanol → Ethyl 2-chloro-3-nitro-5-trifluoromethylbenzoate
Reaction equation
[Cl:1][C:2]1[C:10]([N+:11]([O-:13])=[O:12])=[CH:9][C:8]([C:14]([F:17])([F:16])[F:15])=[CH:7][C:3]=1[C:4](Cl)=[O:5].[CH2:18]([OH:20])[CH3:19]>>[Cl:1][C:2]1[C:10]([N+:11]([O-:13])=[O:12])=[CH:9][C:8]([C:14]([F:17])([F:16])[F:15])=[CH:7][C:3]=1[C:4]([O:20][CH2:18][CH3:19])=[O:5]Participants
3
Procedure
The 2-chloro-3-nitro-5-trifluoromethylbenzoyl chloride (5.5 g; 18 mmol), obtained in step b) of Example 1, is dissolved in ethanol (50 ml) and stirred for 1 hour at room temperature. After evaporating to dryness, the pasty solid is purified by filtration on silica (eluent: dichloromethane). 4.2 g of ethyl 2-chloro-3-nitro-5-trifluoromethylbenzoate are obtained in the form of a pale yellow oil.
Workup
- customAfter evaporating to dryness
- filtrationthe pasty solid is purified by filtration on silica (eluent: dichloromethane)
Sources & evidence
- ORD record
- ord-4ce5ae9eb8cb4074b6c19af214c5d9bf
- Source dataset
- uspto-grants-2011_05
- Patent number
- US07947675B2
Reaction notes
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