Ammonia → HCID 54298002、化合物
反応式
[CH3:1][C:2]1([CH3:24])[C:6](=[O:7])[O:5][C:4]2[CH:8]=[CH:9][C:10]3[C:15]([C:3]1=2)=[CH:14][C:13]([CH2:16][N:17]1[CH:21]=[N:20][CH:19]=[N:18]1)=[C:12]([C:22]#[N:23])[CH:11]=3.S(=O)(=O)(O)[OH:26].N>>[CH3:1][C:2]1([CH3:24])[C:6](=[O:7])[O:5][C:4]2[CH:8]=[CH:9][C:10]3[C:15]([C:3]1=2)=[CH:14][C:13]([CH2:16][N:17]1[CH:21]=[N:20][CH:19]=[N:18]1)=[C:12]([C:22]([NH2:23])=[O:26])[CH:11]=3参加物
4
実験手順
A solution of 1,2-dihydro-1,1-dimethyl-2-oxo-8-(1H-1,2,4-triazol-1-ylmethyl)naphtho[2,1-b]furan-7-carbonitrile, (0.35 g) and concentrated sulphuric acid (2 ml) was kept at room temperature for 18 h. The mixture was treated with crushed ice and neutralised with concentrated aqueous ammonia, and the mixture was extracted twice with ethyl acetate. The combined extracts were dried and evaporated to dryness under reduced pressure, and the residue was purified by flash chromatography using methanol:dichloromethane, 1:14 v/v, as eluant, to give 1,2-dihydro-1,1-dimethyl-2-oxo-8-(1H-1,2,4-triazol-1-ylmethyl)naphtho[2,1-b]furan-7-carboxamide, m.p. 231°-232° after recrystallisation from a mixture of methanol and ethyl acetate.
後処理
- extractionthe mixture was extracted twice with ethyl acetate
- customThe combined extracts were dried
- customevaporated to dryness under reduced pressure
- customthe residue was purified by flash chromatography
出典と根拠
- ORDレコード
- ord-aba89d40a2414223a0f40d7ad4fe73a1
- 出典データセット
- uspto-grants-1990_04
- 特許番号
- US04916148
反応ノート
読み込み中…