4-Nitroaniline → 2-(2-chloroethoxy)-N-(4-nitrophenyl)acetamide
反応式
Cl[C:2]1([Cl:8])[CH2:7][O:6][CH2:5][CH2:4][O:3]1.[N+:9]([C:12]1[CH:18]=[CH:17][C:15]([NH2:16])=[CH:14][CH:13]=1)([O-:11])=[O:10]>>[Cl:8][CH2:2][CH2:7][O:6][CH2:5][C:4]([NH:16][C:15]1[CH:17]=[CH:18][C:12]([N+:9]([O-:11])=[O:10])=[CH:13][CH:14]=1)=[O:3]参加物
3
反応条件
- 温度
- 80 °C
実験手順
1.53 g of a mixture of 2-chlorodioxene and 2,2-dichlorodioxane (molar ratio 1:1) are added to 1.00 g (7.24 mmol) of 4-nitroaniline, and the mixture is heated to 80° C. with stirring. A solid brown mass forms within one hour and becomes liquid again and crystallises within the following 12 hours. The crude product is recrystallised from ethanol with addition of water, giving 1.80 g of 2-(2-chloroethoxy)-N-(4-nitrophenyl)acetamide (“A1”) as yellowish crystals, m.p. 101-102° C. 1H-NMR (d6-DMSO): δ=3.82 (m; 4H), 4.23 (s; 2H), 7.91 (d, J=9 Hz, 2H), 8.23 (d, J=9 Hz, 2H), 10.34 (s, 1H).
後処理
- customcrystallises within the following 12 hours
- customThe crude product is recrystallised from ethanol with addition of water
出典と根拠
- ORDレコード
- ord-f977f05c02f14736b1bdb0c0309a60a6
- 出典データセット
- uspto-grants-2010_03
- 特許番号
- US07687624B2
反応ノート
読み込み中…