Water → 4-Methylthio-3-nitrobenzoic acid
反応式
F[C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=[O:7])=[CH:4][C:3]=1[N+:11]([O-:13])=[O:12].C[O-].[Na+].[CH3:17][S-:18].[Na+].O>CO>[N+:11]([C:3]1[CH:4]=[C:5]([CH:9]=[CH:10][C:2]=1[S:18][CH3:17])[C:6]([OH:8])=[O:7])([O-:13])=[O:12]参加物
6
反応条件
- 温度
- 57.5 °C
実験手順
0.75 mol of 4-fluoro-3-nitrobenzoic acid was charged in 2 l of methanol, and 0.75 mol of sodium methoxide was added dropwise. 0.83 mol of sodium thiomethoxide was then added and the reaction mixture was heated at from 55 to 60° C. for 5 hours. After cooling, 1 l of water was added, the precipitate was filtered off with suction and washed with 100 ml of methylene chloride. The residue was then taken up in 500 ml of 2 N hydrochloric acid and the precipitate formed was filtered off with suction and washed with water. The residue was then taken up in tetrahydrofuran and dried over sodium sulfate and the solvent was distilled off.
後処理
- temperatureAfter cooling
- filtrationthe precipitate was filtered off with suction
- washwashed with 100 ml of methylene chloride
- customthe precipitate formed
- filtrationwas filtered off with suction
- washwashed with water
- dry with materialdried over sodium sulfate
- distillationthe solvent was distilled off
出典と根拠
- ORDレコード
- ord-f985cc9ac96c4c3585c6216d8ba41370
- 出典データセット
- uspto-grants-2002_11
- 特許番号
- US06479436B1
反応ノート
読み込み中…