Sodium Hydroxide → 3-(2-Chloro-6-fluoro-4-trifluoromethylphenyloxy)-5-methylpyrazole

HRID 499994ノート

反応式

HRID 499994 の反応式
[Cl:1][C:2]1[CH:7]=[C:6]([C:8]([F:11])([F:10])[F:9])[CH:5]=[C:4]([F:12])[C:3]=1[O:13][C:14]1[CH:18]=[C:17]([CH3:19])[N:16](C(OC)=O)[N:15]=1.[OH-].[Na+]>C(O)C>[Cl:1][C:2]1[CH:7]=[C:6]([C:8]([F:11])([F:9])[F:10])[CH:5]=[C:4]([F:12])[C:3]=1[O:13][C:14]1[CH:18]=[C:17]([CH3:19])[NH:16][N:15]=1

参加物

4

反応物 2

HCID 14798Sodium HydroxideHCID 57548572Methyl 3-(2-chloro-6-fluoro-4-trifluoromethylphenyloxy)-5-methylpyrazole-1-carboxylate

生成物 1

HCID 178624283-(2-Chloro-6-fluoro-4-trifluoromethylphenyloxy)-5-methylpyrazole収率 88.2%

試薬・触媒・溶媒 1

HCID 702Ethanol溶媒

実験手順

To an ethanol (10 mL) solution of methyl 3-(2-chloro-6-fluoro-4-trifluoromethylphenyloxy)-5-methylpyrazole-1-carboxylate (0.53 g, 1.5 mmol) was added 5% sodium hydroxide (8 mL), and the mixture was refluxed under heating for 2 hours. After completion of the reaction, the solvent was distilled off the reaction mixture, and then water was added, followed by extraction with ethyl acetate. The organic layers combined were washed with water, and dried over anhydrous magnesium sulfate and the solvent was distilled off. The resultant residue was purified by silica gel column chromatography (ethyl acetate:hexane=1:5) to give a white solid of 3-(2-chloro-6-fluoro-4-trifluoromethylphenyloxy)-5-methylpyrazole (0.39 g, yield: 88.2%).

後処理

  1. temperaturethe mixture was refluxed
  2. temperatureunder heating for 2 hours
  3. customAfter completion of the reaction
  4. distillationthe solvent was distilled off the reaction mixture
  5. additionwater was added
  6. extractionfollowed by extraction with ethyl acetate
  7. washThe organic layers combined were washed with water
  8. dry with materialdried over anhydrous magnesium sulfate
  9. distillationthe solvent was distilled off
  10. customThe resultant residue was purified by silica gel column chromatography (ethyl acetate:hexane=1:5)

出典と根拠

ORDレコード
ord-168435d52cd24c1d876f2a0a3608e765
出典データセット
uspto-grants-2010_08
特許番号
US07767827B2

反応ノート

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