Hydrochloric Acid → 3,4-Difluorobenzyl Mercaptan
反応式
N[C:2](N)=[S:3].[F:5][C:6]1[CH:7]=[C:8]([CH:11]=[CH:12][C:13]=1[F:14])CBr.Cl>C(O)C.[OH-].[Na+]>[F:5][C:6]1[CH:7]=[C:8]([CH2:2][SH:3])[CH:11]=[CH:12][C:13]=1[F:14]参加物
6
実験手順
Thiourea (5.0 g) was added to a solution of 3,4-difluorobenzyl bromide (13.6 g) in ethanol (100 ml). The mixture was heated at reflux for 3 h before removal of the volatiles in vacuo. The crude solid was suspended in aqueous sodium hydroxide solution (1.6M, 110 ml) and heated at reflux for 3 h before allowing to cool to room temperature. The reaction was acidified with concentrated hydrochloric acid and the organics extracted with ether (200 ml). The organic layer was washed with saturated sodium bicarbonate solution (2×50 ml), brine (20 ml), dried (MgSO4), and concentrated in vacuo to provide the subtitle product as a colourless oil. Yield 11.1 g
後処理
- temperatureThe mixture was heated
- temperatureat reflux for 3 h before removal of the volatiles in vacuo
- temperatureheated
- temperatureat reflux for 3 h
- extractionthe organics extracted with ether (200 ml)
- washThe organic layer was washed with saturated sodium bicarbonate solution (2×50 ml), brine (20 ml)
- dry with materialdried (MgSO4)
- concentrationconcentrated in vacuo
出典と根拠
- ORDレコード
- ord-09df2e4c3698490e81152dac35327843
- 出典データセット
- uspto-grants-2009_01
- 特許番号
- US07482355B2
反応ノート
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