反応式
[CH3:1][C:2]1[CH2:3][C:4](=[O:13])[N:5]([C:7]2[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=2)[N:6]=1.[CH:14](OC)(OC)OC.[CH3:21][O:22][C:23]1[C:24]([NH2:29])=[CH:25][CH:26]=[CH:27][CH:28]=1.CO>C(O)(=O)C>[CH3:21][O:22][C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][C:24]=1[NH:29][CH:14]=[C:3]1[C:2]([CH3:1])=[N:6][N:5]([C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][CH:12]=2)[C:4]1=[O:13]参加物
6
実験手順
2 g of 5-methyl-2-phenyl-2,4-dihydro-3-pyrazolone, 188 ml of trimethyl orthoformate and 1.29 ml of o-anisidine are heated with stirring in 5 ml of glacial acetic acid at 70° C. for 2 h. The reaction mixture is cooled and 10 ml of methanol are added. The precipitate which has separated out is filtered off with suction and recrystallized from ethyl acetate.
後処理
- temperatureThe reaction mixture is cooled
- customThe precipitate which has separated out
- filtrationis filtered off with suction
- customrecrystallized from ethyl acetate
出典と根拠
- ORDレコード
- ord-a5a8ea6e2454456faa5d8fdb3e022197
- 出典データセット
- uspto-grants-1999_02
- 特許番号
- US05869516
関連ノート
読み込み中…