Water → 3,4-Dichloro-5-fluoro-2-picoline
反応式
[Cl:1][C:2]1[C:7]([F:8])=[CH:6][N:5]=[C:4]([CH3:9])[CH:3]=1.C(O[Cl:15])(C)(C)C.O>C(Cl)(Cl)Cl>[Cl:15][C:3]1[C:4]([CH3:9])=[N:5][CH:6]=[C:7]([F:8])[C:2]=1[Cl:1]参加物
5
反応条件
- 温度
- 0 °C
実験手順
To 0.87 g (6 mmol) of 4-chloro-5-fluoro-2-picoline, the product of Example 66, in 20 mL of chloroform cooled to -45° C., is added 0.75 mL of t-butylhypochlorite. The reaction mixture is stirred at -45° C. for 2 hours and at 0° C. for 2 hours. The reaction mixture is then poured into water and the resultant aqueous mixture is extracted with methylene chloride. The organic solution is dried over anhydrous magnesium sulfate, filtered, concentrated under reduced pressure and distilled to afford the title compound.
後処理
- extractionthe resultant aqueous mixture is extracted with methylene chloride
- dry with materialThe organic solution is dried over anhydrous magnesium sulfate
- filtrationfiltered
- concentrationconcentrated under reduced pressure
- distillationdistilled
出典と根拠
- ORDレコード
- ord-014f44cb018147659fc5b134765083b2
- 出典データセット
- uspto-grants-1997_02
- 特許番号
- US05599816
反応ノート
読み込み中…