Diketene → Butanoic acid, 3-oxo-, 2-phenoxyethyl ester

HRID 1982574ノート

反応式

HRID 1982574 の反応式
[CH2:1]=[C:2]1[O:6][C:4](=[O:5])[CH2:3]1.[O:7]([CH2:14][CH2:15][OH:16])[C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1>>[C:4]([O:16][CH2:15][CH2:14][O:7][C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)(=[O:5])[CH2:3][C:2]([CH3:1])=[O:6]

参加物

3

反応物 2

HCID 12661DiketeneHCID 31236Phenoxyethanol

生成物 1

HCID 12237326Butanoic acid, 3-oxo-, 2-phenoxyethyl ester収率 40.8%

反応条件

温度
100 °C

実験手順

Diketene (84 g) was added dropwise with stirring to 140 g of 2-phenoxyethanol heated at 100° C. After the addition was completed, the reaction mixture was refluxed for an additional 22 hours. The reaction mixture was fractionally distilled to obtain 90.6 g of 2-phenoxyethyl acetoacetate, BP 140°-145° C./0.3 mm.

後処理

  1. additionAfter the addition
  2. temperaturethe reaction mixture was refluxed for an additional 22 hours
  3. distillationThe reaction mixture was fractionally distilled

出典と根拠

ORDレコード
ord-23e94d4e94b5420793aae82081a6a23c
出典データセット
uspto-grants-1986_06
特許番号
US04596873

反応ノート

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