Hydrochloric Acid → 4-[(Dibenzylcarbamoyl)amino]benzoic acid
反応式
[CH2:1]([N:8]([CH2:23][C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1)[C:9]([NH:11][C:12]1[CH:17]=[CH:16][C:15]([C:18]([O:20]CC)=[O:19])=[CH:14][CH:13]=1)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[OH-].[Na+].Cl>C(O)C>[CH2:23]([N:8]([CH2:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1)[C:9]([NH:11][C:12]1[CH:17]=[CH:16][C:15]([C:18]([OH:20])=[O:19])=[CH:14][CH:13]=1)=[O:10])[C:24]1[CH:25]=[CH:26][CH:27]=[CH:28][CH:29]=1参加物
5
実験手順
A solution of 5.61 g. of 1,1-dibenzyl-3-(4-carboethoxyphenyl)urea in 100 ml of ethanol is treated with 25 ml of 1 N aqueous sodium hydroxide solution, stirred under reflux for 16 hours, allowed to cool, acidified with 1 N hydrochloric acid, and filtered. The solid is recrystallized from ethanol to yield 1,1-dibenzyl-3-(4-carboxyphenyl)urea as a white solid, mp 210°-214°.
後処理
- temperatureunder reflux for 16 hours
- temperatureto cool
- filtrationfiltered
- customThe solid is recrystallized from ethanol
出典と根拠
- ORDレコード
- ord-1cbc0a9cda84493aa49faa1f0b93f3a7
- 出典データセット
- uspto-grants-1983_06
- 特許番号
- US04387106
反応ノート
読み込み中…