Water → HCID 59226970、化合物
反応式
[CH3:1][C:2]1[CH:7]=[C:6]([C:8]([F:17])([C:13]([F:16])([F:15])[F:14])[C:9]([F:12])([F:11])[F:10])[CH:5]=[C:4]([CH3:18])[C:3]=1[NH:19][C:20](=[O:31])[C:21]1[CH:26]=[CH:25][C:24](F)=[C:23]([N+:28]([O-:30])=[O:29])[CH:22]=1.[C-:32]#[N:33].[Na+].O>CN(C)C=O>[C:32]([C:24]1[CH:25]=[CH:26][C:21]([C:20]([NH:19][C:3]2[C:2]([CH3:1])=[CH:7][C:6]([C:8]([F:17])([C:13]([F:15])([F:16])[F:14])[C:9]([F:12])([F:10])[F:11])=[CH:5][C:4]=2[CH3:18])=[O:31])=[CH:22][C:23]=1[N+:28]([O-:30])=[O:29])#[N:33]参加物
実験手順
To a solution of N-[2,6-dimethyl-4-(1,2,2,2-tetrafluoro-1-trifluoromethyl-ethyl)-phenyl]-4-fluoro-3-nitro-benzamide (2.008 g, 4.4 mmol) (prepared according to WO 05/073165) in N,N-dimethylformamide (25 ml) was added sodium cyanide (0.237 g, 4.84 mmol). The reaction mixture was stirred at ambient temperature for 48 hours. Then water (20 ml) was added and the organic phase extracted three times with ethyl acetate (3×100 ml). The combined organic extracts were washed with water and brine, dried over sodium sulfate and concentrated. The residue was purified by column chromatography on silica gel (eluent: cyclohexane/ethyl acetate 1:4) to give 4-cyano-N-[2,6-dimethyl-4-(1,2,2,2-tetrafluoro-1-trifluoromethyl-ethyl)-phenyl]-3-nitro-benzamide (1.0 g, 49% yield). 1H-NMR (400 MHz, CDCl3): 8.85 (d, 1H), 8.38 (q, 1H), 8.11 (d, 1H), 7.55 (s, 1H), 7.40 (s, 2H), 2.33 (s, 6H) ppm.
後処理
- extractionthe organic phase extracted three times with ethyl acetate (3×100 ml)
- washThe combined organic extracts were washed with water and brine
- dry with materialdried over sodium sulfate
- concentrationconcentrated
- customThe residue was purified by column chromatography on silica gel (eluent: cyclohexane/ethyl acetate 1:4)
出典と根拠
- ORDレコード
- ord-f0dea05745c748319911e08558a35762
- 出典データセット
- uspto-grants-2013_03
- 特許番号
- US08389766B2
反応ノート
読み込み中…