反应详情

A solution of 3-(2,2,2-trifluoro-ethoxy)-pyridine-2-carboxylic acid methyl ester (216 mg) in MeOH (1 ml) was treated with a solution of LiOH (78 mg) in water (0.1 ml) and stirring was continued at 22° C. for 2 h. The solution was evaporated and the residue triturated with 1N aqueous HCl. The suspension was filtered, the residue washed with water and dried to give 3-(2,2,2-trifluoro-ethoxy)-pyridine-2-carboxylic acid as a colorless solid. MS (ISP): m/z=220.0 [M−H]−.

1. customThe solution was evaporated
2. customthe residue triturated with 1N aqueous HCl
3. filtrationThe suspension was filtered
4. washthe residue washed with water
5. customdried