Water → 2-(4-Methylphenyl)quinazolin-4(3H)-one
反応式
[C:1]([C:4]1[CH:19]=[CH:18][CH:17]=[CH:16][C:5]=1[NH:6][C:7]([C:9]1[CH:14]=[CH:13][C:12]([CH3:15])=[CH:11][CH:10]=1)=O)(=[O:3])[NH2:2].[OH-].[Na+].O>C(O)(=O)C>[CH3:15][C:12]1[CH:13]=[CH:14][C:9]([C:7]2[NH:2][C:1](=[O:3])[C:4]3[C:5](=[CH:16][CH:17]=[CH:18][CH:19]=3)[N:6]=2)=[CH:10][CH:11]=1参加物
5
実験手順
A mixture of 2'-carbamoyl-p-toluanilide (66.97 g; 0.263 mol), sodium hydroxide (41.9 g) and water 837 ml) is stirred and heated at reflux for 0.5 hour. The resultant solution is cooled down, made acid with acetic acid. The reaction mixture is filtered, the isolated product is washed and dried to afford 58.16 g off white solid, mp 239°-241° C. Recrystallized from absolute ethanol, the product has a mp of 239°-240.5° C.
後処理
- temperatureheated
- temperatureat reflux for 0.5 hour
- filtrationThe reaction mixture is filtered
- washthe isolated product is washed
- customdried
- customto afford 58.16 g off white solid, mp 239°-241° C
- customRecrystallized from absolute ethanol
出典と根拠
- ORDレコード
- ord-f041c9964c7241bf930d40ac3ff617ab
- 出典データセット
- uspto-grants-1984_02
- 特許番号
- US04431440
反応ノート
読み込み中…