Ethanol → HCID 23359031、化合物
反応式
F[C:2]1[C:7]([F:8])=[C:6]([Cl:9])[C:5]([N+:10]([O-:12])=[O:11])=[C:4]([F:13])[C:3]=1[CH3:14].C(O)C.[CH3:18][N:19]1[CH2:24][CH2:23][NH:22][CH2:21][CH2:20]1>O.C(N(CC)CC)C>[CH3:18][N:19]1[CH2:24][CH2:23][N:22]([C:2]2[C:7]([F:8])=[C:6]([Cl:9])[C:5]([N+:10]([O-:12])=[O:11])=[C:4]([F:13])[C:3]=2[CH3:14])[CH2:21][CH2:20]1参加物
6
実験手順
To 2,3,6-trifluoro-4-chloro-5-nitrotoluene (0.17 g) are added ethanol (3.3 ml), water (0.5 ml), N-methylpiperazine (0.45 ml) and triethylamine (0.56 ml) and the mixture is refluxed for 24 hours. After the reaction is completed, water is added to the reaction mixture and the mixture is extracted with diethyl ether, and the extract is washed with water and dried. The solvent is distilled off under reduced pressure and the residue is purified by silica-gel column-chromatography (eluent; dichloromethane: methanol=20 : 1) to give 2-(4-methyl-1-piperazinyl)-3,6-difluoro-4-chloro-5-nitrotoluene (0.13 g).
後処理
- temperaturethe mixture is refluxed for 24 hours
- extractionthe mixture is extracted with diethyl ether
- washthe extract is washed with water
- customdried
- distillationThe solvent is distilled off under reduced pressure
- customthe residue is purified by silica-gel column-chromatography (eluent; dichloromethane: methanol=20 : 1)
出典と根拠
- ORDレコード
- ord-40d4326fb4b54cc99073f5bb89638d1d
- 出典データセット
- uspto-grants-1996_02
- 特許番号
- US05495020
反応ノート
読み込み中…