反应详情

温度

0 °C

A solution of N-benzyl-2-chloro-N-((2R,3R)-2-hydroxypentan-3-yl)acetamide (210 mg, 0.7 mmol) in THF (5 mL) was added to a suspension of NaH (89 mg, 3.7 mmol) in THF (5 mL) at 0° C. The reaction mixture was stirred at 0° C. for 1 hour and then quenched with saturated NH4Cl solution. The layers were separated and the aqueous layer was extracted with EtOAc (2×10 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4, filtered and concentrated in vacuo. Purification of the residue on a silica gel column (0 to 50% EtOAc/hexanes) afforded (5R,6R)-4-benzyl-5-ethyl-6-methylmorpholin-3-one. MS APCl calc'd for C14H19NO2 [M+H]+ 234. found 234.

1. customquenched with saturated NH4Cl solution
2. customThe layers were separated
3. extractionthe aqueous layer was extracted with EtOAc (2×10 mL)
4. washThe combined organic layers were washed with brine
5. dry with materialdried over anhydrous Na2SO4
6. filtrationfiltered
7. concentrationconcentrated in vacuo
8. customPurification of the residue on a silica gel column (0 to 50% EtOAc/hexanes)