2-Propoxy-4-trifluoromethyl-benzoic acid propyl ester → 2-Propoxy-4-(trifluoromethyl)benzoic acid
Reaction equation
C([O:4][C:5](=[O:20])[C:6]1[CH:11]=[CH:10][C:9]([C:12]([F:15])([F:14])[F:13])=[CH:8][C:7]=1[O:16][CH2:17][CH2:18][CH3:19])CC>[Li+].[OH-]>[CH2:17]([O:16][C:7]1[CH:8]=[C:9]([C:12]([F:13])([F:14])[F:15])[CH:10]=[CH:11][C:6]=1[C:5]([OH:20])=[O:4])[CH2:18][CH3:19]Participants
3
Reactant 1
Product 1
Reagents, catalysts & solvents 1
Procedure
2-Propoxy-4-trifluoromethyl-benzoic acid propyl ester (957 mg, 3.44 mmol) was reacted with 1N LiOH (10 ml) at room temperature for 4 hrs. The reaction solvent was removed in vacuo. Water (30 ml) was added to the resulting residue, which was neutralized with 1 N aqueous HCl solution. The aqueous mixture was extracted with ethylacetate (30 ml×3). A combined organic layer was dried over MgSO4, and concentrated in vacuo to yield quantitatively title compound.
Workup
- customThe reaction solvent was removed in vacuo
- additionWater (30 ml) was added to the resulting residue, which
- extractionThe aqueous mixture was extracted with ethylacetate (30 ml×3)
- dry with materialA combined organic layer was dried over MgSO4
- concentrationconcentrated in vacuo
Sources & evidence
- ORD record
- ord-b93a0aa216fe472e8b707aad6edd372d
- Source dataset
- uspto-grants-2013_10
- Patent number
- US08557872B2
Reaction notes
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