Water → 4-chloro-N-amino-phthalimide
反応式
[Cl:1][C:2]1[CH:3]=[C:4]2[C:9](=[O:10])[NH:8][C:6](=[O:7])[C:5]2=[CH:11][CH:12]=1.O.[NH2:14]N.O>C(O)C>[Cl:1][C:2]1[CH:3]=[C:4]2[C:9](=[O:10])[N:8]([NH2:14])[C:6](=[O:7])[C:5]2=[CH:11][CH:12]=1参加物
5
実験手順
To a cooled mixture of 1.81 g (10 mmol) 4-chloro phthalimide in 20 mL ethanol (96%) was added 0.5 mL (10 mmol) hydrazine monohydrate. The reaction mixture was stirred for 2 min. at room temperature and 2 min. at reflux. By adding 50 mL cold water pale yellow crystals formed after 1 h. Resulting crystals was filtered and recrystallized from ethanol to give 0.4 g (20%)4-chloro-N-amino-phthalimide :top 172°-175° C.; 1H NMR (200 MHz, DMSO-d6) d 4.90 (s, 2H, NH2), 7.82-7.92 (m, 3H, C6H3); it solidifies after melting and melts again around 345° C.
後処理
- temperatureat reflux
- customformed after 1 h
- customResulting crystals
- filtrationwas filtered
- customrecrystallized from ethanol
出典と根拠
- ORDレコード
- ord-ca901d6c476c4be7b70a5176f7913521
- 出典データセット
- uspto-grants-1995_05
- 特許番号
- US05420234
反応ノート
読み込み中…