反応式
[C:1]1([C:9]([C:11]([C:13]2[CH:20]=[CH:19][C:16]([O:17][CH3:18])=[CH:15][CH:14]=2)=O)=O)[CH:8]=[CH:7][C:4]([O:5][CH3:6])=[CH:3][CH:2]=1.Cl.[NH2:22][NH:23][C:24]([NH2:26])=[O:25].C([O-])(=O)C.[Na+].C(O)(=O)C>O>[OH:25][C:24]1[N:23]=[N:22][C:11]([C:13]2[CH:20]=[CH:19][C:16]([O:17][CH3:18])=[CH:15][CH:14]=2)=[C:9]([C:1]2[CH:8]=[CH:7][C:4]([O:5][CH3:6])=[CH:3][CH:2]=2)[N:26]=1参加物
6
実験手順
Two moles, 540 g., of anisil (4,4'-dimethoxybenzil), 222 g. (2 moles) of semicarbazide hydrochloride, 180 g. (2.2 moles) of sodium acetate and 2.5 liters of acetic acid were refluxed overnight. The cooled reaction mixture was poured into 5 liters of water. The crude solid product was collected by filtration, washed with water and recrystallized from acetic acid. The yield was 434 g. of 3-hydroxy-5,6-bis(4-methoxyphenyl)-1,2,4-triazine, mp about 272°-274°C.
後処理
- customThe cooled reaction mixture
- filtrationThe crude solid product was collected by filtration
- washwashed with water
- customrecrystallized from acetic acid
出典と根拠
- ORDレコード
- ord-7f20420cb8c44c17993d95e43c8e8bdc
- 出典データセット
- uspto-grants-1976_09
- 特許番号
- US03979516
関連ノート
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