反応式
[Cl:1][C:2]1[CH:3]=[C:4]([CH:6]=[C:7]([Cl:10])[C:8]=1[F:9])[NH2:5].[CH3:11][O:12][C:13](=[O:20])[C:14]([N:17]=[C:18]=[O:19])([CH3:16])[CH3:15]>>[CH3:11][O:12][C:13](=[O:20])[C:14]([CH3:16])([CH3:15])[NH:17][C:18](=[O:19])[NH:5][C:4]1[CH:3]=[C:2]([Cl:1])[C:8]([F:9])=[C:7]([Cl:10])[CH:6]=1参加物
3
実験手順
3-(3,5-dichloro-4-phenyl)-5,5-dimethylhydantoin, which melts at 175°-176°, is obtained in the manner indicated in Example 1 from 3,5-dichloro-4-fluoro-aniline and 2-isocyanato-2-methylpropionic acid methyl ester and after crystallizing from ether/petroleum ether. The N-[(3,5-dichloro-4-fluorophenyl)-carbamoyl]-2-methylalanine methyl ester intermediately formed is not isolated.
後処理
- customafter crystallizing from ether/petroleum ether
出典と根拠
- ORDレコード
- ord-58628825cad64a3ea3319cdf6ad7b0cf
- 出典データセット
- uspto-grants-1983_10
- 特許番号
- US04407814
関連ノート
読み込み中…