2,6-Difluoro-4-nitrobenzoic acid → 4-Amino-2,6-difluorobenzoic acid

HRID 634685노트

반응식

HRID 634685 반응식
[F:1][C:2]1[CH:10]=[C:9]([N+:11]([O-])=O)[CH:8]=[C:7]([F:14])[C:3]=1[C:4]([OH:6])=[O:5].[H][H]>[Pd].C(O)C>[NH2:11][C:9]1[CH:8]=[C:7]([F:14])[C:3]([C:4]([OH:6])=[O:5])=[C:2]([F:1])[CH:10]=1

참가 물질

5

반응물 2

HCID 212603012,6-Difluoro-4-nitrobenzoic acidHCID 178418361HCID 178418361, 화합물

생성물 1

HCID 109759644-Amino-2,6-difluorobenzoic acid수율 91%

시약·촉매·용매 2

HCID 23938Palladium촉매HCID 702Ethanol용매

실험 절차

A mixture of 2,6-difluoro-4-nitrobenzoic acid (2.5 g, 12 mmol) and 10% palladium-on-charcoal catalyst (500 mg) in ethanol (I50 ml) was stirred under 1 atmosphere of hydrogen at ambient temperature for 3 hours. The catalyst was removed by filtration through diatomaceous earth, the filter pad washed with ethanol and the solvent removed by evaporation to give 4-amino-2,6-difluorobenzoic acid (3-8 g, 91%).

후처리

  1. customThe catalyst was removed by filtration through diatomaceous earth
  2. washthe filter pad washed with ethanol
  3. customthe solvent removed by evaporation

출처 및 근거

ORD 기록
ord-e4a795f2c67d4d1583d69289e92806c9
출처 데이터셋
uspto-grants-2001_02
특허 번호
US06184225B2

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