Phosphorus sulfide (P2S5) → 3,4-Difluorobenzene-1-carbothioamide
反応式
[F:1][C:2]1[CH:3]=[C:4]([CH:8]=[CH:9][C:10]=1[F:11])[C:5]([NH2:7])=O.P12(SP3(SP(SP(S3)(S1)=S)(=S)S2)=S)=[S:13]>C(OCC)C>[F:1][C:2]1[CH:3]=[C:4]([CH:8]=[CH:9][C:10]=1[F:11])[C:5]([NH2:7])=[S:13]参加物
4
反応条件
- 温度
- 0 °C
実験手順
Dissolve 3,4-difluorobenzamide (4.95 g, 31.5 mmol) in diethyl ether (70 mL) and cool the mixture to 0° C. Add phosphorus pentasulfide (7.0 g, 31.5 mmol) and warm the mixture to room temperature overnight. Filter the mixture and concentrate the filtrate to obtain 5.5 g (100%) of a yellow solid. 1H NMR (300 MHz, DMSO-d6) δ: 9.99 (bs, 1H), 9.54 (bs, 1H), 7.89 (m, 1H), 7.75 (m, 1H), 7.46 (m, 1H).
後処理
- filtrationFilter the mixture
- concentrationconcentrate the filtrate
出典と根拠
- ORDレコード
- ord-45e24c302a8c4f20bdbfa485e1bbf047
- 出典データセット
- uspto-grants-2011_11
- 特許番号
- US08049013B2
反応ノート
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