Iodoethane → Ethyl 2-(furan-2-yl)acetate

HRID 244960

反応式

HRID 244960 の反応式
[O:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[CH2:6][C:7]([OH:9])=[O:8].C(=O)([O-])[O-].[K+].[K+].C(=O)([O-])[O-].[Cs+].[Cs+].I[CH2:23][CH3:24]>CN(C)C=O.O>[O:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[CH2:6][C:7]([O:9][CH2:23][CH3:24])=[O:8]

参加物

7

反応物 4

HCID 6340IodoethaneHCID 10796Cesium carbonateHCID 11430Potassium CarbonateHCID 75974Furan-2-acetic acid

生成物 1

HCID 11252124Ethyl 2-(furan-2-yl)acetate収率 56.1%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 6228Dimethylformamide溶媒

実験手順

24.8 g of 2-(furan-2-yl)acetic acid was dissolved in 590 mL of N,N-dimethylformamide and mixed with 32.6 g (0.236 mol) of potassium carbonate and 6.42 g (19.7 mmol) cesium carbonate successively. The reaction mixture was further mixed with 19 mL (0.24 mol) of iodoethane under cooling with ice and stirred at room temperature for 14 hours. After completion of the reaction, the reaction mixture was diluted with distilled water and extracted with ethyl acetate. The organic layer was washed with saturated aqueous sodium chloride, dried over anhydrous sodium sulfate and filtered, and the filtrate was concentrated under reduced pressure to give 17.0 g of the desired product as a brown liquid.

後処理

  1. temperatureunder cooling with ice
  2. customAfter completion of the reaction
  3. extractionextracted with ethyl acetate
  4. washThe organic layer was washed with saturated aqueous sodium chloride
  5. dry with materialdried over anhydrous sodium sulfate
  6. filtrationfiltered
  7. concentrationthe filtrate was concentrated under reduced pressure

出典と根拠

ORDレコード
ord-0fe3831f7f244a61a0c90d4c3f6ea78b
出典データセット
uspto-grants-2014_02
特許番号
US08658686B2

関連ノート

読み込み中…