反应详情

3-Fluoro-4-hydroxybenzaldehyde (400 mg, 2.85 mmol), 3,4-dichlorobenzyl alcohol (665 mg, 3.76 mmol), and triphenylphosphine (980 mg, 3.74 mmol) were dissolved in tetrahydrofuran (8 mL), and a diethyl azodicarboxylate toluene solution (2.2 M, 1.71 mL, 3.76 mmol) was slowly added dropwise thereto at room temperature, and then, the resulting mixture was stirred under a nitrogen atmosphere at room temperature for 2 hours. The solvent in the reaction solution was distilled off under reduced pressure, and the resulting residue was purified by silica gel column chromatography (hexane:ethyl acetate=100:0 to 95:5 (v/v)), whereby the objective title compound was obtained as a colorless oily substance (680 mg, yield: 80%).

1. distillationThe solvent in the reaction solution was distilled off under reduced pressure
2. customthe resulting residue was purified by silica gel column chromatography (hexane:ethyl acetate=100:0 to 95:5 (v/v)), whereby the objective title compound
3. customwas obtained as a colorless oily substance (680 mg, yield: 80%)