Ethanolamine → 2-[(2-Hydroxyethyl)amino]-3-nitrobenzonitrile
反応式
Cl[C:2]1[C:9]([N+:10]([O-:12])=[O:11])=[CH:8][CH:7]=[CH:6][C:3]=1[C:4]#[N:5].[CH2:13]([CH2:15][NH2:16])[OH:14]>C(O)C>[OH:14][CH2:13][CH2:15][NH:16][C:2]1[C:9]([N+:10]([O-:12])=[O:11])=[CH:8][CH:7]=[CH:6][C:3]=1[C:4]#[N:5]参加物
4
実験手順
2-chloro-3-nitrobenzonitrile (74 g, 0.408 mol) is mixed with ethanol (370 ml) and ethanolamine (57 ml). The mixture is stirred for 16 hrs at room temperature. To complete the reaction, the mixture is refluxed for 2 hours. After cooling, the mixture is concentrated under vacuum; the product precipitates as a red solid. To eliminate the ethanolamine hydrochloride salt, the suspension is triturated with 500 ml of water and filtrated under vacuum. The solid is washed with ethanol and ether then dried to give the desired product (75 g, 89%).
後処理
- customthe reaction
- temperaturethe mixture is refluxed for 2 hours
- temperatureAfter cooling
- concentrationthe mixture is concentrated under vacuum
- customthe product precipitates as a red solid
- customthe suspension is triturated with 500 ml of water
- filtrationfiltrated under vacuum
- washThe solid is washed with ethanol and ether
- customthen dried
出典と根拠
- ORDレコード
- ord-4fe0a309a44c4f9aae3504079b335762
- 出典データセット
- uspto-grants-2012_01
- 特許番号
- US08093402B2
反応ノート
読み込み中…