Ethanol → Ethyl 2-(2-methylpyridin-3-yl)acetate

HRID 889297

反応式

HRID 889297 の反応式
[CH3:1][C:2]1[C:7]([CH2:8][C:9]#N)=[CH:6][CH:5]=[CH:4][N:3]=1.S(=O)(=O)(O)O.C(=O)(O)[O-:17].[Na+].[CH2:21]([OH:23])[CH3:22]>>[CH2:21]([O:23][C:9](=[O:17])[CH2:8][C:7]1[C:2]([CH3:1])=[N:3][CH:4]=[CH:5][CH:6]=1)[CH3:22]

参加物

5

反応物 4

HCID 702EthanolHCID 1118Sulfuric AcidHCID 516892Sodium Bicarbonate2 回HCID 190992862-(2-Methylpyridin-3-yl)acetonitrile

生成物 1

HCID 15169545Ethyl 2-(2-methylpyridin-3-yl)acetate

実験手順

790 mg (5.98 mmol) of the compound from Example 38A are initially introduced into 10 ml ethanol, 4 ml concentrated sulfuric acid are added slowly and the mixture is heated under reflux for 6 h. After cooling, the mixture is neutralized with 6.00 g sodium bicarbonate and saturated sodium bicarbonate solution. The aqueous phase is extracted several times with ethyl acetate and the combined organic phases are dried over sodium sulfate, filtered and concentrated. The residue is reacted without further purification.

後処理

  1. additionare added slowly
  2. temperaturethe mixture is heated
  3. temperatureunder reflux for 6 h
  4. temperatureAfter cooling
  5. extractionThe aqueous phase is extracted several times with ethyl acetate
  6. dry with materialthe combined organic phases are dried over sodium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated
  9. customThe residue is reacted without further purification

出典と根拠

ORDレコード
ord-dac4c7b3d4e940e9ad4727c046d316a8
出典データセット
uspto-grants-2012_08
特許番号
US08252817B2

関連ノート

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