1,2-Dibromoethane → 1-(2-BroMoethoxy)-4(trifluoroMethyl)benzene

HRID 852062ノート

反応式

HRID 852062 の反応式
[OH:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]([F:11])([F:10])[F:9])=[CH:4][CH:3]=1.[Br:12][CH2:13][CH2:14]Br.C(=O)([O-])[O-].[K+].[K+]>CC(C)=O.O.C(OCC)(=O)C>[Br:12][CH2:13][CH2:14][O:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]([F:9])([F:10])[F:11])=[CH:4][CH:3]=1

参加物

7

反応物 3

HCID 78391,2-DibromoethaneHCID 11430Potassium CarbonateHCID 678744-(Trifluoromethyl)phenol

生成物 1

HCID 146450481-(2-BroMoethoxy)-4(trifluoroMethyl)benzene収率 21.4%

試薬・触媒・溶媒 3

HCID 180Acetone溶媒HCID 962Water溶媒HCID 8857Ethyl Acetate溶媒

実験手順

A suspension of 4-hydroxybenzotrifluoride (5.0 g), 1,2-dibromoethane (17.4 g) and potassium carbonate (2.6 g) in acetone (100 mL) was heated under reflux for 3 days. The reaction solution was diluted with water and ethyl acetate. The organic layer was washed with saturated aqueous sodium hydrogencarbonate solution and saturated ammonium chloride (×2), dried over anhydrous sodium sulfate and concentrated. The residue was purified by silica gel column chromatography to give the title compound as a colorless oil (1.78 g).

後処理

  1. temperaturewas heated
  2. temperatureunder reflux for 3 days
  3. washThe organic layer was washed with saturated aqueous sodium hydrogencarbonate solution and saturated ammonium chloride (×2)
  4. dry with materialdried over anhydrous sodium sulfate
  5. concentrationconcentrated
  6. customThe residue was purified by silica gel column chromatography

出典と根拠

ORDレコード
ord-c7eeaf3f3c48413bbbc03b3cd2e0c874
出典データセット
uspto-grants-2007_08
特許番号
US07253178B2

反応ノート

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