Thionyl Chloride → 4,4-Difluorocyclohexane-1-carbonyl chloride
反応式
[F:1][C:2]1([F:11])[CH2:7][CH2:6][CH:5]([C:8](O)=[O:9])[CH2:4][CH2:3]1.S(Cl)([Cl:14])=O>C1(C)C=CC=CC=1>[F:1][C:2]1([F:11])[CH2:7][CH2:6][CH:5]([C:8]([Cl:14])=[O:9])[CH2:4][CH2:3]1参加物
4
実験手順
4,4-Difluorocyclohexanecarboxylic acid (118.2 g, 0.72 mol) was dissolved in toluene (296 ml). To the clear solution was added thionyl chloride (261 ml, 3.6 mol) and the resultant solution was heated under reflux for 1.5 hours, A sample was taken and concentrated and 1H-NMR indicated complete conversion to the title compound. The reaction was cooled to room temperature and the thionyl chloride was removed under reduced pressure and replaced with toluene to give the title compound as a toluene concentrate at a total volume of 591 ml.
後処理
- temperatureunder reflux for 1.5 hours
- concentrationconcentrated
- customthe thionyl chloride was removed under reduced pressure
出典と根拠
- ORDレコード
- ord-300fe30dd0114397ad407ebd1eccdb7c
- 出典データセット
- uspto-grants-2009_08
- 特許番号
- US07576097B2
反応ノート
読み込み中…