تفاعل #168342

معادلة التفاعل

N-benzyl-2-chloro-N-((2R,3R)-2-hydroxypentan-3-yl)acetamide

NaH

→

(5R,6R)-4-benzyl-5-ethyl-6-methylmorpholin-3-one

المذيبات

THF

THF

ظروف التفاعل

المعالجة

1. 1
   أخرىquenched with saturated NH4Cl solution
2. 2
   أخرىThe layers were separated
3. 3
   استخلاصthe aqueous layer was extracted with EtOAc (2×10 mL)
4. 4
   غسيلThe combined organic layers were washed with brine
5. 5
   تجفيفdried over anhydrous Na2SO4
6. 6
   ترشيحfiltered
7. 7
   تركيزconcentrated in vacuo
8. 8
   أخرىPurification of the residue on a silica gel column (0 to 50% EtOAc/hexanes)

الإجراء التجريبي

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.

المصدر