Hydrochloric Acid → HCID 54252146, compound

Participants

Reaction Steps

To a stirred solution of methyl 2-(2,2,2-trifluoroethoxy)-5-trifluoromethylphenylacetate (1.07 g, 3.5 mmol) from Step 2 above in THF (8 mL) and water (2 mL) was added LiOH (0.20 g, 4.8 mmol). The mixture was stirred at ambient temperature for 24 h. The reaction was acidified to pH 2 with 5 N aqueous HCl and the solvents were removed under reduced pressure. The residue was purified by pressurized silica gel column chromatography using a gradient elution of 0-50% MeOH:CH2Cl2 to give 2-(2,2,2-trifluoroethoxy)-5-trifluoromethylphenylacetic acid as a gum (HPLC retention time=8.7 min (method A)).

Provenance & Evidence