反应详情

温度

-55 °C

To a solution of 3-cyano-4-(5-trifluoromethyl-pyridin-2-yloxy)-benzoic acid methyl ester (23 g, 0.070 mol) in anhydrous THF (200 mL), was added LiAlH4 (4.07 g, 0.11 mmol) portionwise at −78° C. The reaction mixture was warmed to −55° C. slowly and stirred for 20 mins, diluted with water (3 mL 0.16 mmol, slow addition), filtered and concentrated. Purification via FC (PE/EtOAc=10/1 to 5/1) afforded the title product as a colorless oil (12.5 g).

1. filtrationfiltered
2. concentrationconcentrated
3. customPurification via FC (PE/EtOAc=10/1 to 5/1)