反应详情

To 40 ml of tetrahydrofuran was added 12 g of 4-[2,2,2-trifluoro-1-(triethylsilyloxy)ethyl]pyridine-2-carbonitrile, and 15 ml of tetrabutylammonium fluoride (1M tetrahydrofuran solution) was added at 0° C. After the mixture was stirred at room temperature for 5 hours, water was added to the reaction solution, the resultant solution was extracted with ethyl acetate three times, and the organic layers were combined, dried with anhydrous magnesium sulfate, and concentrated. The residue was subjected to silica gel column chromatography to obtain 5.6 g of 4-(2,2,2-trifluoro-1-hydroxyethyl)pyridine-2-carbonitrile.

1. additionwas added at 0° C
2. extractionthe resultant solution was extracted with ethyl acetate three times
3. dry with materialdried with anhydrous magnesium sulfate
4. concentrationconcentrated