Water → 3-({[tert-Butyl(diphenyl)silyl]oxy}methyl)-1-(2-chloro-4-nitrophenyl)pyridin-2(1H)-one

HRID 85195

반응식

HRID 85195 반응식
CC(C)([O-])C.[K+].[Si:7]([O:24][CH2:25][C:26]1[C:27](=[O:32])[NH:28][CH:29]=[CH:30][CH:31]=1)([C:20]([CH3:23])([CH3:22])[CH3:21])([C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1)[C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1.[Cl:33][C:34]1[CH:39]=[C:38]([N+:40]([O-:42])=[O:41])[CH:37]=[CH:36][C:35]=1F.O>CN(C=O)C>[Si:7]([O:24][CH2:25][C:26]1[C:27](=[O:32])[N:28]([C:35]2[CH:36]=[CH:37][C:38]([N+:40]([O-:42])=[O:41])=[CH:39][C:34]=2[Cl:33])[CH:29]=[CH:30][CH:31]=1)([C:20]([CH3:23])([CH3:21])[CH3:22])([C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1)[C:8]1[CH:9]=[CH:10][CH:11]=[CH:12][CH:13]=1

참가 물질

6

반응물 4

HCID 962WaterHCID 676882-Chloro-1-fluoro-4-nitrobenzeneHCID 23665647Potassium tert-butoxideHCID 594101563-({[tert-Butyl(diphenyl)silyl]oxy}methyl)pyridin-2(1H)-one

생성물 1

HCID 594101863-({[tert-Butyl(diphenyl)silyl]oxy}methyl)-1-(2-chloro-4-nitrophenyl)pyridin-2(1H)-one

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

At 0° C., 0.500 g (4.46 mmol) of potassium tert-butoxide is added to 1.08 g (2.97 mmol) of the compound from Example 3A in 21 ml of DMF, and the mixture is stirred at room temperature for 30 min. 0.571 g (3.27 mmol) of 2-chloro-1-fluoro-4-nitrobenzene is added, and the mixture is stirred at RT. After 4.5 h, 200 ml of water are added, and the mixture is then extracted three times with ethyl acetate. The combined organic phases are washed with water and then dried over sodium sulphate. After filtration, the solvents are removed under reduced pressure. The residue is purified by chromatography on silica gel (cyclohexane/ethyl acetate 9:1). This gives 872 mg (56% of theory) of the desired compound.

후처리

  1. stirringthe mixture is stirred at RT
  2. waitAfter 4.5 h
  3. extractionthe mixture is then extracted three times with ethyl acetate
  4. washThe combined organic phases are washed with water
  5. dry with materialdried over sodium sulphate
  6. filtrationAfter filtration
  7. customthe solvents are removed under reduced pressure
  8. customThe residue is purified by chromatography on silica gel (cyclohexane/ethyl acetate 9:1)

출처 및 근거

ORD 기록
ord-445897fbd85c41d594077132b150d2ba
출처 데이터셋
uspto-grants-2014_09
특허 번호
US08846934B2

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