Water → Ethyl 2-oxo-3-(3,4,5-trifluorophenoxy)piperidine-3-carboxylate

HRID 71172

반응식

HRID 71172 반응식
[F:1][C:2]1[CH:3]=[C:4]([OH:10])[CH:5]=[C:6]([F:9])[C:7]=1[F:8].C(=O)([O-])[O-].[K+].[K+].Cl[C:18]1([C:25]([O:27][CH2:28][CH3:29])=[O:26])[CH2:23][CH2:22][CH2:21][NH:20][C:19]1=[O:24].O>CN(C=O)C.[Cl-].[Na+].O>[O:24]=[C:19]1[C:18]([O:10][C:4]2[CH:3]=[C:2]([F:1])[C:7]([F:8])=[C:6]([F:9])[CH:5]=2)([C:25]([O:27][CH2:28][CH3:29])=[O:26])[CH2:23][CH2:22][CH2:21][NH:20]1

참가 물질

7

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온도
100 °C

실험 절차

To a mixture of 3,4,5-trifluorophenol (14.4 g) and potassium carbonate (40.3 g) in DMF (200 mL) was added ethyl 3-chloro-2-oxopiperidine-3-carboxylate (20 g), and the mixture was stirred at 100° C. for 1 hr. To the reaction mixture were added water (200 mL) and saturated brine (200 mL) at 0° C., and the mixture was extracted with ethyl acetate. The extract was washed with saturated aqueous sodium hydrogen carbonate solution (200 mL), water (200 mL) and saturated brine (200 mL×2), and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give the title compound (24.61 g).

후처리

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe extract was washed with saturated aqueous sodium hydrogen carbonate solution (200 mL), water (200 mL) and saturated brine (200 mL×2)
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customthe solvent was evaporated under reduced pressure
  5. customThe residue was purified by silica gel column chromatography (ethyl acetate/hexane)

출처 및 근거

ORD 기록
ord-106c5625101a4a4f9382f4921d49f5df
출처 데이터셋
uspto-grants-2014_09
특허 번호
US08822699B2

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