Dimethyl Sulfoxide → 2-(1-Benzylpiperidin-4-yl)-1-(2-chlorophenyl)ethanone

HRID 914811노트

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HRID 914811 반응식
C(Cl)(=O)C(Cl)=O.CS(C)=O.[CH2:11]([N:18]1[CH2:23][CH2:22][CH:21]([CH2:24][CH:25]([C:27]2[CH:32]=[CH:31][CH:30]=[CH:29][C:28]=2[Cl:33])[OH:26])[CH2:20][CH2:19]1)[C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1.C(N(CC)CC)C>ClCCl.C(OCC)(=O)C.O>[CH2:11]([N:18]1[CH2:19][CH2:20][CH:21]([CH2:24][C:25]([C:27]2[CH:32]=[CH:31][CH:30]=[CH:29][C:28]=2[Cl:33])=[O:26])[CH2:22][CH2:23]1)[C:12]1[CH:13]=[CH:14][CH:15]=[CH:16][CH:17]=1

참가 물질

8

반응물 4

HCID 679Dimethyl SulfoxideHCID 8471TriethylamineHCID 65578Oxalyl chlorideHCID 222485842-(1-Benzylpiperidin-4-yl)-1-(2-chlorophenyl)ethanol

생성물 1

HCID 222478472-(1-Benzylpiperidin-4-yl)-1-(2-chlorophenyl)ethanone수율 47%

시약·촉매·용매 3

HCID 962Water용매HCID 6344Dichloromethane용매3회HCID 8857Ethyl Acetate용매

반응 조건

온도
-78 °C

실험 절차

After dissolving 1.30 ml of oxalyl chloride in 30 ml of dichloromethane, the solution was cooled to −78° C., and a solution of 1.22 ml of dimethylsulfoxide in dichloromethane (5 ml) was added dropwise while stirring. The mixture was stirred for 3 minutes, and then a solution of 2-(1-benzylpiperidin-4-yl)-1-(2-chlorophenyl)ethanol in dichloromethane (10 ml) was added dropwise. After stirring for 30 minutes, 8.01 ml of triethylamine was added, the temperature was raised to room temperature and stirring was continued for 3 hours. Water was added to the reaction solution, and extraction was performed with ethyl acetate. The organic layer was washed with water and saturated brine in that order and dried over anhydrous magnesium sulfate, and then the solvent was distilled off under reduced pressure. The residue was purified by NH silica gel column chromatography (solvent: n-hexane/ethyl acetate) to obtain the title compound (1.78 g, 47% yield, 2 steps).

후처리

  1. stirringThe mixture was stirred for 3 minutes
  2. stirringAfter stirring for 30 minutes
  3. temperaturethe temperature was raised to room temperature
  4. stirringstirring
  5. washThe organic layer was washed with water and saturated brine in that order
  6. dry with materialdried over anhydrous magnesium sulfate
  7. distillationthe solvent was distilled off under reduced pressure
  8. customThe residue was purified by NH silica gel column chromatography (solvent: n-hexane/ethyl acetate)

출처 및 근거

ORD 기록
ord-fbfbbfe3f13d4172999fbf4dc7babe52
출처 데이터셋
uspto-grants-2007_09
특허 번호
US07265108B2

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