[F:1][C:2]([F:19])([F:18])[O:3][C:4]1[CH:5]=[C:6]([CH:15]=[CH:16][CH:17]=1)[O:7][CH2:8][CH2:9][C:10]([O:12]CC)=[O:11].[OH-].[Li+].Cl>C1COCC1.O>[F:1][C:2]([F:18])([F:19])[O:3][C:4]1[CH:5]=[C:6]([CH:15]=[CH:16][CH:17]=1)[O:7][CH2:8][CH2:9][C:10]([OH:12])=[O:11]To a solution of ethyl 3-(3-(trifluoromethoxy)phenoxy)propanoate (1.0 g, 3.42 mmol) in THF (8 mL) was added a solution of lithium hydroxide (164 mg, 6.83 mmol) in water (4 mL). The reaction was stirred at room temperature overnight. The reaction was neutralized with diluted HCl and extracted with ethyl acetate. The organic phase was washed with brine, dried over sodium sulfate, and concentrated to give 3-(3-(trifluoromethoxy)phenoxy)propanoic acid (0.9 g, 99.1% yield) as colorless oil which was used without purification.
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