Ethyl Acetate → 2-(Cyclopropylmethyl-propyl-amino)-5-trifluoromethyl-benzaldehyde

関与物質

反応条件

反応手順

2-Fluoro-5-trifluoromethyl-benzaldehyde (5 g) and cyclopropylmethyl-propyl-amine (5.57 ml) is dissolved in toluene (50 ml), and thereto is added potassium carbonate (10.7 g) and the mixture is stirred at 120° C. overnight. The reaction solution is cooled to room temperature, and thereto are added ethyl acetate and water, and the mixture is separated, and the organic layer is washed with a saturated brine, dried over magnesium sulfate, and concentrated under reduced pressure. The resulting residue is purified by silica gel column chromatography (hexane:ethyl acetate=20:1) to give 2-(cyclopropylmethyl-propyl-amino)-5-trifluoromethyl-benzaldehyde (6.8 g). MS (m/z): 286 [M+H]+

情報源と証拠