4-Chlorophenol → 1-(p-Chlorophenoxy)-3,3-dimethyl-4-chloro-2-butanone

HRID 126877

反応式

HRID 126877 の反応式
Br[CH2:2][C:3](=[O:9])[C:4]([CH3:8])([CH3:7])[CH2:5][Cl:6].[Cl:10][C:11]1[CH:16]=[CH:15][C:14]([OH:17])=[CH:13][CH:12]=1.C(=O)([O-])[O-].[K+].[K+]>CC(C)=O>[Cl:6][CH2:5][C:4]([CH3:8])([CH3:7])[C:3](=[O:9])[CH2:2][O:17][C:14]1[CH:15]=[CH:16][C:11]([Cl:10])=[CH:12][CH:13]=1

参加物

5

反応物 3

HCID 46844-ChlorophenolHCID 11430Potassium CarbonateHCID 104207672-Butanone, 1-bromo-4-chloro-3,3-dimethyl-

生成物 1

HCID 201382951-(p-Chlorophenoxy)-3,3-dimethyl-4-chloro-2-butanone収率 80.7%

試薬・触媒・溶媒 1

HCID 180Acetone溶媒

実験手順

213.5 g (1 mol) of 1-bromo-4-chloro-3,3-dimethyl-butan-2-one were added dropwise to a boiling suspension of 128.5 g (1 mol) of 4-chlorophenol and 140 g (1 mol) of potassium carbonate in 1,000 ml of absolute acetone. The mixture was stirred under reflux for 15 hours and then allowed to cool and the inorganic residue was filtered off and rinsed with acetone. The filtrate was concentrated by distilling off the solvent in vacuo, the residue was taken up in 1,000 ml of methylene chloride and the methylene chloride mixture was washed three times with 250 ml of water each time, dried over sodium sulphate and distilled. 210 g (80.7% of theory) of 4-chloro-1-(4-chlorophenoxy)-3,3-dimethyl-butan-2-one of boiling point 125°-127° C./0.1 mm were obtained.

後処理

  1. temperatureunder reflux for 15 hours
  2. temperatureto cool
  3. filtrationthe inorganic residue was filtered off
  4. washrinsed with acetone
  5. concentrationThe filtrate was concentrated
  6. distillationby distilling off the solvent in vacuo
  7. washthe methylene chloride mixture was washed three times with 250 ml of water each time
  8. dry with materialdried over sodium sulphate
  9. distillationdistilled

出典と根拠

ORDレコード
ord-8ed1ffc6bae54fa19ff776cae9dfd5dc
出典データセット
uspto-grants-1981_03
特許番号
US04254132

関連ノート

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