Triethylamine → 3-Methyl 1-(4-nitrophenyl) 5-(4-ethylphenyl)piperidine-1,3-dicarboxylate

HRID 661202노트

반응식

HRID 661202 반응식
[CH2:1]([C:3]1[CH:8]=[CH:7][C:6]([CH:9]2[CH2:14][NH:13][CH2:12][CH:11]([C:15]([O:17][CH3:18])=[O:16])[CH2:10]2)=[CH:5][CH:4]=1)[CH3:2].C(N(CC)CC)C.Cl[C:27]([O:29][C:30]1[CH:35]=[CH:34][C:33]([N+:36]([O-:38])=[O:37])=[CH:32][CH:31]=1)=[O:28]>ClCCl>[CH2:1]([C:3]1[CH:4]=[CH:5][C:6]([CH:9]2[CH2:14][N:13]([C:27]([O:29][C:30]3[CH:31]=[CH:32][C:33]([N+:36]([O-:38])=[O:37])=[CH:34][CH:35]=3)=[O:28])[CH2:12][CH:11]([C:15]([O:17][CH3:18])=[O:16])[CH2:10]2)=[CH:7][CH:8]=1)[CH3:2]

참가 물질

5

반응물 3

HCID 8471TriethylamineHCID 821294-Nitrophenyl chloroformateHCID 58002552Methyl 5-(4-ethylphenyl)piperidine-3-carboxylate

생성물 1

HCID 580023823-Methyl 1-(4-nitrophenyl) 5-(4-ethylphenyl)piperidine-1,3-dicarboxylate

시약·촉매·용매 1

HCID 6344Dichloromethane용매

반응 조건

온도
0 °C

실험 절차

3.0 g (12.1 mmol) of the compound from Example 11A were initially charged in 30 ml of dichloromethane and cooled to 0° C., and admixed with 3.4 ml (2.4 g, 12.1 mmol) of triethylamine and 2.4 g (12.1 mmol) of 4-nitrophenyl chloroformate. The reaction mixture was allowed to warm up slowly to RT and stirred at RT for 16 h. The mixture was washed several times with water, dried over sodium sulphate, filtered and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel (eluent dichloromethane→dichloromethane/methanol 100:2). Yield: 4.7 g (83% of theory, purity 89%)

후처리

  1. temperatureto warm up slowly to RT
  2. washThe mixture was washed several times with water
  3. dry with materialdried over sodium sulphate
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by column chromatography on silica gel (eluent dichloromethane→dichloromethane/methanol 100:2)

출처 및 근거

ORD 기록
ord-ad543e96589f4676b53094f5da26754f
출처 데이터셋
uspto-grants-2011_12
특허 번호
US08084469B2

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