Potassium Hydroxide → 3-Methyl-6-(methylthio)-2-[3-(trifluoromethyl)phenyl]-4-quinolinecarboxylic acid

HRID 245152

反応式

HRID 245152 の反応式
[OH-:1].[K+].[CH3:3][S:4][C:5]1[CH:6]=[C:7]2[C:11](=[CH:12][CH:13]=1)[NH:10][C:9](=[O:14])[C:8]2=O.[F:16][C:17]([F:29])([F:28])[C:18]1[CH:19]=[C:20]([C:24](=O)[CH2:25][CH3:26])[CH:21]=[CH:22][CH:23]=1>O.C(O)C>[CH3:26][C:25]1[C:24]([C:20]2[CH:21]=[CH:22][CH:23]=[C:18]([C:17]([F:16])([F:28])[F:29])[CH:19]=2)=[N:10][C:11]2[C:7]([C:8]=1[C:9]([OH:14])=[O:1])=[CH:6][C:5]([S:4][CH3:3])=[CH:13][CH:12]=2

参加物

6

実験手順

Potassium hydroxide (3.31 g, 59.0 mmol) in water (10 mL) was added slowly to a suspension of 5-(methylthio)-1H-indole-2,3-dione (1.9 g, 9.83 mmol) in ethanol (25 mL). 1-[3-(Trifluoromethyl)phenyl]-1-propanone (1.99 g, 9.83 mmol) was added and the mixture was heated to reflux for 1 h. The solvent was removed under reduced pressure, the residue was dissolved in water, and the aqueous mixture was washed with ether (3 times). The aqueous phase was chilled and was acidified to pH 3 with concentrated HCl. The solid material was collected by filtration, washed with water, and air dried to afford 3-methyl-6-(methylthio)-2-[3-(trifluoromethyl)phenyl]-4-quinolinecarboxylic acid (2.5 g, 67% yield). MS (m/z) 378.0 (M+H+).

後処理

  1. temperaturethe mixture was heated
  2. temperatureto reflux for 1 h
  3. customThe solvent was removed under reduced pressure
  4. dissolutionthe residue was dissolved in water
  5. washthe aqueous mixture was washed with ether (3 times)
  6. temperatureThe aqueous phase was chilled
  7. filtrationThe solid material was collected by filtration
  8. washwashed with water, and air
  9. customdried

出典と根拠

ORDレコード
ord-20820fad8d1647319b9ca15de2fd2c09
出典データセット
uspto-grants-2014_02
特許番号
US08658636B2

関連ノート

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