2-chloro-N-(2,4-dimethoxyphenyl)acetamide → 2-Chloroacetamido-5-methoxy phenol

HRID 38411

反応式

HRID 38411 の反応式
[Cl:1][CH2:2][C:3]([NH:5][C:6]1[CH:11]=[CH:10][C:9]([O:12][CH3:13])=[CH:8][C:7]=1[O:14]C)=[O:4].[Cl-].[Cl-].[Cl-].[Al+3]>C(Cl)Cl>[Cl:1][CH2:2][C:3]([NH:5][C:6]1[CH:11]=[CH:10][C:9]([O:12][CH3:13])=[CH:8][C:7]=1[OH:14])=[O:4]

参加物

4

反応条件

温度
0 °C

実験手順

2-Chloro-N-(2,4-dimethoxy-phenyl)-acetamide (45.8 g, 0.2 mol) was dissolved in 1000 mL methylene chloride, and the reaction mixture was stirred at 0° C. under nitrogen. Aluminum trichloride (78.9 g, 0.6 mol) was added in portions over 30 minutes, and the reaction mixture was allowed to stir for 17 hours at room temperature. The reaction mixture was concentrated to 200 mL volume under reduced pressure, and then poured onto ice. Solids were removed by filtration, and the liquid was taken up in EtOAc, washed with brine, dried (MgSO4), filtered, and evaporated under reduced pressure to yield 39.67 g of 2-Chloro-N-(2-hydroxy-4-methoxy-phenyl)-acetamide. MS (M+H)=216.

後処理

  1. stirringto stir for 17 hours at room temperature
  2. concentrationThe reaction mixture was concentrated to 200 mL volume under reduced pressure
  3. additionpoured onto ice
  4. customSolids were removed by filtration
  5. washwashed with brine
  6. dry with materialdried (MgSO4)
  7. filtrationfiltered
  8. customevaporated under reduced pressure

出典と根拠

ORDレコード
ord-1df77548902c412289a0d4218c428ab1
出典データセット
uspto-grants-2013_09
特許番号
US08524725B2

関連ノート

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