Lithium Hydroxide → 2-(Trifluoromethyl)-1,3-thiazole-4-carboxylic acid

関与物質

反応手順

Ethyl 2-(trifluoromethyl)thiazole-4-carboxylate (400 mg, 1.176 mmol) was dissolved in THF/methanol mixture (9:1) and 1M lithium hydroxide (3.55 ml, 3.55 mmol) was added slowly. The reaction mixture was stirred at RT for 1 hour, pH was adjusted to 2 and the reaction mixture was extracted three times with ethyl acetate. Ethyl acetate phases were combined, dried and evaporated to dryness. Yield 93%. m/z [197.1+1]

情報源と証拠