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Hydrochloric Acid → 3-Amino-N-[2-bromo-4-(perfluoropropan-2-yl)-6-(trifluoromethyl)phenyl]-2-fluorobenzamide

HRID 2360395
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HRID 2360395 반응식
[Br:1][C:2]1[CH:7]=[C:6]([C:8]([F:17])([C:13]([F:16])([F:15])[F:14])[C:9]([F:12])([F:11])[F:10])[CH:5]=[C:4]([C:18]([F:21])([F:20])[F:19])[C:3]=1[NH:22][C:23](=[O:34])[C:24]1[CH:29]=[CH:28][CH:27]=[C:26]([N+:30]([O-])=O)[C:25]=1[F:33].Cl.[OH-].[Na+]>C(O)C>[NH2:30][C:26]1[C:25]([F:33])=[C:24]([CH:29]=[CH:28][CH:27]=1)[C:23]([NH:22][C:3]1[C:4]([C:18]([F:20])([F:21])[F:19])=[CH:5][C:6]([C:8]([F:17])([C:9]([F:10])([F:11])[F:12])[C:13]([F:14])([F:15])[F:16])=[CH:7][C:2]=1[Br:1])=[O:34]
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참가 물질

5

반응물 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 86656683N-(2-bromo-4-(perfluoropropan-2-yl)-6-(trifluoromethyl)phenyl)-2-fluoro-3-nitrobenzamide

생성물 1

HCID 866566853-Amino-N-[2-bromo-4-(perfluoropropan-2-yl)-6-(trifluoromethyl)phenyl]-2-fluorobenzamide수율 104.7%

시약·촉매·용매 1

HCID 702Ethanol
용매

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온도
60 °C

실험 절차

0.940 g (1.63 mmol) of N-(2-bromo-4-(heptafluoropropan-2-yl)-6-(trifluoromethyl)phenyl)-2-fluoro-3-nitrobenzamide and 0.960 g (5.05 mmol) of stannous chloride (anhydrous) were added to 10 ml of ethanol, and 1.02 ml (9.78 mmol) of concentrated hydrochloric acid was added thereto, followed by stirring at 60° C. for 4 hours. The reaction mixture was adjusted to pH 10 by the addition of an aqueous sodium hydroxide solution, and the precipitated insolubles were removed by filtration using Celite. The filtrate on Celite was washed with ethyl acetate. The filtrate was extracted with ethyl acetate, and the organic layer was washed with a 20% aqueous sodium hydroxide solution and saturated brine, and then dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure and the obtained residue was purified by silica gel column chromatography (eluent solvent; hexane:ethyl acetate=4:1) to prepare 0.930 g (yield 99%) of a target compound.

후처리

  1. additionwas added
  2. customthe precipitated insolubles were removed by filtration
  3. washThe filtrate on Celite was washed with ethyl acetate
  4. extractionThe filtrate was extracted with ethyl acetate
  5. washthe organic layer was washed with a 20% aqueous sodium hydroxide solution and saturated brine
  6. dry with materialdried over anhydrous magnesium sulfate
  7. customThe solvent was evaporated under reduced pressure
  8. customthe obtained residue was purified by silica gel column chromatography (eluent solvent; hexane:ethyl acetate=4:1)

출처 및 근거

ORD 기록
ord-5bf5cde43c124272bd780651d3bbf43d
출처 데이터셋
uspto-grants-2014_04
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08686044B2

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