Ammonia → 4-amino-N,1-dimethyl-2-oxo-3-pentenesulfonamide
反応式
[NH3:1].[CH3:2][N:3]1[C:8]([CH3:9])=[CH:7][C:6](=[O:10])[CH:5]([CH3:11])[S:4]1(=[O:13])=[O:12]>CO>[NH2:1][C:8]([CH3:9])=[CH:7][C:6](=[O:10])[CH:5]([CH3:11])[S:4]([NH:3][CH3:2])(=[O:13])=[O:12]参加物
4
実験手順
A moderately rapid stream of dry ammonia was introduced at 20°-25° during 3 hours into a solution of 2.5 g of 2,3,6-trimethyl-2H-1,2-thiazin-5(6H)-one 1,1-dioxide in 25 ml of methanol and the mixture was thereupon left to stand overnight. The dark yellow solution obtained was concentrated to dryness under reduced pressure and the crystalline residue was recrystallized from ethanol. There were obtained 2.3 g of 4-amino-N,1-dimethyl-2-oxo-3-pentenesulfonamide in the form of colorless crystals, m.p. 140°-143°.
後処理
- waitthe mixture was thereupon left
- customThe dark yellow solution obtained
- concentrationwas concentrated to dryness under reduced pressure
- customthe crystalline residue was recrystallized from ethanol
出典と根拠
- ORDレコード
- ord-7c664e08997b42b489d60152ce5b2e87
- 出典データセット
- uspto-grants-1988_05
- 特許番号
- US04742069
反応ノート
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