反应详情

To a mixture of (R)-2-(1-(tert-butoxycarbonyl)piperidin-3-yl)acetic acid (6 g, 24.66 mmol) in ethanol (20 mL) was bubbled HCl (g) for 10 minutes. The reaction mixture was stirred for 1 hr and then HCl was bubbled through the mixture for 5 minutes. After 1 hour, solvents were removed from the mixture in vacuo. The reaction mixture was diluted with ethyl acetate and washed with saturated NaHCO3. The aqueous layer was backextracted 2 times with 10% IPA/chloroform. The organic layers were combined, dried, and concentrated in vacuo to yield 4.05 g of (R)-ethyl 2-(piperidin-3-yl)acetate. MS (M+1)=172. HPLC Peak RT=0.96 minutes.

1. customwas bubbled HCl (g) for 10 minutes
2. customHCl was bubbled through the mixture for 5 minutes
3. waitAfter 1 hour
4. customsolvents were removed from the mixture in vacuo
5. additionThe reaction mixture was diluted with ethyl acetate
6. washwashed with saturated NaHCO3
7. customdried
8. concentrationconcentrated in vacuo