Hydrochloric Acid → HCID 23451800、化合物
反応式
[Cl:1][C:2]1[CH:3]=[C:4]([NH:18][C:19](=[O:23])OCC)[CH:5]=[C:6]([Cl:17])[C:7]=1[O:8][C:9]1[CH:14]=[C:13]([Cl:15])[CH:12]=[C:11]([Cl:16])[CH:10]=1.Cl>O>[CH3:19][N:18]1[CH:4]=[CH:3][N:18]([C:4]2[CH:5]=[C:6]([Cl:17])[C:7]([O:8][C:9]3[CH:10]=[C:11]([Cl:16])[CH:12]=[C:13]([Cl:15])[CH:14]=3)=[C:2]([Cl:1])[CH:3]=2)[C:19]1=[O:23]参加物
4
実験手順
Ethyl [3,5-dichloro-4-(3,5-dichlorophenoxy)phenyl]carbamate (0.02 mole), water (30 ml) and concentrated hydrochloric acid (3 ml) are charged into a glass reaction vessel fitted with a mechanical stirrer, thermometer and condenser. The mixture is refluxed for a period of about 30 minutes and then cooled and extracted with ethyl acetate. The extract is washed with dilute aqueous sodium bicarbonate, with two portions of water and is then dried. The ethyl acetate is removed by mild warming under reduced pressure to yield the desired product 1-methyl-3-[3,5-dichloro-4-(3,5-dichlorophenoxy) phenyl]-4-imidazolin-2-one.
後処理
- customfitted with a mechanical stirrer
- temperatureThe mixture is refluxed for a period of about 30 minutes
- temperaturecooled
- extractionextracted with ethyl acetate
- washThe extract is washed with dilute aqueous sodium bicarbonate, with two portions of water
- customis then dried
- customThe ethyl acetate is removed
- temperatureby mild warming under reduced pressure
出典と根拠
- ORDレコード
- ord-28393d8686f44ee0afa8517c0165eadf
- 出典データセット
- uspto-grants-1981_07
- 特許番号
- US04279637
反応ノート
読み込み中…