{4-[5-(2-Chlorobiphenyl-4-yl)-[1,2,4]-oxadiazol-3-yl]-phenyl}-methanol → 4-[5-(2-Chlorobiphenyl-4-yl)-[1,2,4]-oxadiazol-3-yl]-benzaldehyde
反応式
[Cr](Cl)([O-])(=O)=O.[NH+]1C=CC=CC=1.[Cl:12][C:13]1[CH:18]=[C:17]([C:19]2[O:23][N:22]=[C:21]([C:24]3[CH:29]=[CH:28][C:27]([CH2:30][OH:31])=[CH:26][CH:25]=3)[N:20]=2)[CH:16]=[CH:15][C:14]=1[C:32]1[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1>ClCCl>[Cl:12][C:13]1[CH:18]=[C:17]([C:19]2[O:23][N:22]=[C:21]([C:24]3[CH:29]=[CH:28][C:27]([CH:30]=[O:31])=[CH:26][CH:25]=3)[N:20]=2)[CH:16]=[CH:15][C:14]=1[C:32]1[CH:33]=[CH:34][CH:35]=[CH:36][CH:37]=1参加物
4
実験手順
Pyridiniumchlorochromate (3.6 g, 0.017 mol) is added to a solution of {4-[5-(2-chlorobiphenyl-4-yl)-[1,2,4]-oxadiazol-3-yl]-phenyl}-methanol (4.0 g, 0.011 mol) in dichloromethane (40 mL). The reaction mixture is stirred at room temperature for 30 minutes, filtered and washed with dichloromethane (40 mL). Filtrate is concentrated under reduced pressure to give crude which is purified by column chromatography (230; 400 mesh: 9.5:0.5 toluene:ethyl acetate) to yield 4-[5-(2-chlorobiphenyl-4-yl)-[1,2,4]-oxadiazol-3-yl]-benzaldehyde.
後処理
- filtrationfiltered
- washwashed with dichloromethane (40 mL)
- concentrationFiltrate is concentrated under reduced pressure
- customto give crude which
- customis purified by column chromatography (230; 400 mesh: 9.5:0.5 toluene:ethyl acetate)
出典と根拠
- ORDレコード
- ord-d7a052f0dc084490a71bb912ab50e8a8
- 出典データセット
- uspto-grants-2016_02
- 特許番号
- US09266867B2
反応ノート
読み込み中…