反应详情

3-(3-Nitrophenyl)propanoic acid (3.0 g, 15 mmol) was dissolved in dry tetrahydrofuran (7.6 mL) in a flame-dried flask and cooled in an ice bath. A solution of borane in tetrahydrofuran (20 mL, 20 mmol, 1.0 M) was added dropwise over a period of 30 minutes. The reaction mixture was stirred for an additional 2 hours at rt, then quenched slowly with ice water, and followed by an addition of ether (40 mL). The ether layer was washed with water and saturated aqueous solution of NaHCO3 successively, dried, and concentrated to give the desired product as a yellow gel (2.7 g, 97%).

1. temperaturecooled in an ice bath
2. customquenched slowly with ice water
3. additionfollowed by an addition of ether (40 mL)
4. washThe ether layer was washed with water and saturated aqueous solution of NaHCO3 successively
5. customdried
6. concentrationconcentrated