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Ethyl Acetate → 1-(4-Fluoro-3-nitrophenyl)ethanol

HRID 58196
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HRID 58196 반응식
[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8](=[O:10])[CH3:9])=[CH:4][C:3]=1[N+:11]([O-:13])=[O:12].[BH4-].[Na+].CCOC(C)=O>CO.[Cl-].[Na+].O>[F:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]([OH:10])[CH3:9])=[CH:4][C:3]=1[N+:11]([O-:13])=[O:12]
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참가 물질

6

반응물 3

HCID 8857Ethyl AcetateHCID 27346124'-Fluoro-3'-nitroacetophenoneHCID 4311764Sodium borohydride

생성물 1

HCID 179959151-(4-Fluoro-3-nitrophenyl)ethanol수율 87.1%

시약·촉매·용매 2

HCID 887Methanol용매HCID 57417360Sodium chloride; water용매

실험 절차

1-(4-fluoro-3-nitrophenyl)ethanone (1.0 g, 5.46 mmol) was dissolved in MeOH (15.0 ml) and stirred over ice bath. NaBH4 (0.62 g, 16.0 mmol) was added portionwise. Upon completion of the addition, the reaction mixture was stirred at rt for 10 minutes. The reaction mixture was poured into EtOAc and brine. The organic layer was separated, dried over MgSO4 and evaporated. The resulting material was purified by flash chromatography on silica eluting with 20% to 70% EtOAc/Hexane to afford the title compound (881 mg, yield: 87%). %). 1H-NMR (400 MHz, CDCl3) δ 1.53 (d, 4H) 4.99 (dd, 1H) 7.22-7.33 (m, 1H) 7.66 (ddd, 1H) 8.09 (dd, 1H)

후처리

  1. additionUpon completion of the addition
  2. stirringthe reaction mixture was stirred at rt for 10 minutes
  3. customThe organic layer was separated
  4. dry with materialdried over MgSO4
  5. customevaporated
  6. customThe resulting material was purified by flash chromatography on silica eluting with 20% to 70% EtOAc/Hexane

출처 및 근거

ORD 기록
ord-95d290047f3d4487ba95a2a9bd813576
출처 데이터셋
uspto-grants-2016_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09434697B2

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