p-Toluenesulfonic acid → 1,1-Bis(2-fluoro-4-methylphenyl)-2-(1-methyl-1H-tetrazol-5-yl)ethene
反応式
[F:1][C:2]1[CH:7]=[C:6]([CH3:8])[CH:5]=[CH:4][C:3]=1[C:9]([C:18]1[CH:23]=[CH:22][C:21]([CH3:24])=[CH:20][C:19]=1[F:25])(O)[CH2:10][C:11]1[N:15]([CH3:16])[N:14]=[N:13][N:12]=1.C1(C)C=CC(S(O)(=O)=O)=CC=1>C1(C)C=CC=CC=1.C(OCC)C>[F:25][C:19]1[CH:20]=[C:21]([CH3:24])[CH:22]=[CH:23][C:18]=1[C:9]([C:3]1[CH:4]=[CH:5][C:6]([CH3:8])=[CH:7][C:2]=1[F:1])=[CH:10][C:11]1[N:15]([CH3:16])[N:14]=[N:13][N:12]=1参加物
5
実験手順
A suspension of 1,1-bis(2-fluoro-4-methylphenyl)-2-(1-methyl-1H-tetrazol-5-yl)ethanol (7.3 g, 21.0 mmoles) in toluene (200 mL) with p-toluene sulfonic acid (3 g) and the mixture heated at reflux for 14 hours. After cooling, the mixture was diluted with diethyl ether and extracted with saturated sodium bicarbonate solution and water. The organic layer was dried (MgSO4) and evaporated. The residue was triturated with isopropyl ether to give the title compound; m.p.=58°-60° C.
後処理
- temperaturethe mixture heated
- temperatureat reflux for 14 hours
- temperatureAfter cooling
- extractionextracted with saturated sodium bicarbonate solution and water
- dry with materialThe organic layer was dried (MgSO4)
- customevaporated
- customThe residue was triturated with isopropyl ether
出典と根拠
- ORDレコード
- ord-12d2a476afd14a10a7e6bc9c105811b5
- 出典データセット
- uspto-grants-1990_02
- 特許番号
- US04898949
反応ノート
読み込み中…