反应详情

Hydroxylamine HCl (20.3 mmol) was dissolved in 14.9 mL of 2.5 M aqueous NaOH solution at rt and 4-Cyclopentyl-but-2-ynenitrile (16.9 mmol) was added in solution with 50 mL EtOH. The cloudy suspension was stirred at rt for 2 hours. The reaction material was then diluted with 200 mL of Et2O and washed with two 50 mL portions of water, followed by 50 mL of aqueous saturated sodium chloride solution. The organics were then dried over Na2SO4, filtered and concentrated under reduced pressure. The crude products were then purified through flash chromatography to give 5-Cyclopentylmethyl-isoxazol-3-ylamine.

1. washwashed with two 50 mL portions of water
2. dry with materialThe organics were then dried over Na2SO4
3. filtrationfiltered
4. concentrationconcentrated under reduced pressure
5. customThe crude products were then purified through flash chromatography