Ammonia → Cgp53353
反応式
C[O:2][C:3](=O)[C:4]1[C:5](=[CH:10][C:11]([NH:22][C:23]2[CH:28]=[CH:27][C:26]([F:29])=[CH:25][CH:24]=2)=[C:12]([NH:14][C:15]2[CH:20]=[CH:19][C:18]([F:21])=[CH:17][CH:16]=2)[CH:13]=1)[C:6](OC)=[O:7].[NH3:31]>C(O)CO>[F:21][C:18]1[CH:19]=[CH:20][C:15]([NH:14][C:12]2[CH:13]=[C:4]3[C:3](=[O:2])[NH:31][C:6](=[O:7])[C:5]3=[CH:10][C:11]=2[NH:22][C:23]2[CH:24]=[CH:25][C:26]([F:29])=[CH:27][CH:28]=2)=[CH:16][CH:17]=1参加物
4
実験手順
Analogously to Example 1, 290 mg (0.7 mmol) of 4,5-bis(4-fluoroanilino)phthalic acid dimethyl ester in 22 ml of ethylene glycol are heated at 120° and, with stirring, ammonia gas is passed through the mixture for 18 hours. The reaction mixture is cooled and extracted with ethyl acetate. The ethyl acetate phases are washed in succession three times with water and once with saturated sodium chloride solution, dried with sodium sulfate and concentrated by evaporation. The evaporation residue is chromatographed on silica gel with hexane/ethyl acetate 1:1 and the product fractions are combined and concentrated by evaporation, yielding the title compound in the form of orange crystals, m.p.>220° C., FAB-MS: 366 [M+ +H].
後処理
- temperatureThe reaction mixture is cooled
- extractionextracted with ethyl acetate
- washThe ethyl acetate phases are washed in succession three times with water and once with saturated sodium chloride solution
- dry with materialdried with sodium sulfate
- concentrationconcentrated by evaporation
- customThe evaporation residue is chromatographed on silica gel with hexane/ethyl acetate 1:1
- concentrationconcentrated by evaporation
出典と根拠
- ORDレコード
- ord-a07be471ebc64e9db9fafd5c664f5bfc
- 出典データセット
- uspto-grants-1997_09
- 特許番号
- US05663336
反応ノート
読み込み中…