Sarcosine → (4-Chloro-benzenesulfonyl)-methyl-amino]-acetic acid
反応式
[NH:1]([CH2:3][C:4]([OH:6])=[O:5])[CH3:2].[OH-].[Na+].C(Cl)(Cl)Cl.[Cl:13][C:14]1[CH:19]=[CH:18][C:17]([S:20](Cl)(=[O:22])=[O:21])=[CH:16][CH:15]=1>O>[Cl:13][C:14]1[CH:19]=[CH:18][C:17]([S:20]([N:1]([CH2:3][C:4]([OH:6])=[O:5])[CH3:2])(=[O:22])=[O:21])=[CH:16][CH:15]=1参加物
6
反応条件
- 温度
- 60 °C
実験手順
4.3 Parts of sarcosine and 4.1 parts of sodium hydroxide are dissolved in 100 parts of water. To the resulting solution, 35 parts of chloroform containing 10 parts of p-chlorobenzenesulfonyl chloride is added, and the resulting mixture is stirred at 60° C. for about 2 hours. After the reaction, the aqueous layer is separated and then acidified with hydrochloric acid to precipitate crystals. The crystals are collected by filtration and recrystallized from a mixed solvent comprising acetone and water to obtain 4.6 parts of N-p-chlorobenzenesulfonyl-sarcosine, m.p. 180.5°-182° C.
後処理
- customAfter the reaction
- customthe aqueous layer is separated
- customto precipitate crystals
- filtrationThe crystals are collected by filtration
- customrecrystallized from a mixed solvent
出典と根拠
- ORDレコード
- ord-5ada714d2a024a249397cbdbdb5adeea
- 出典データセット
- uspto-grants-1978_09
- 特許番号
- US04113463
反応ノート
読み込み中…