Hydrochloric Acid → HCID 18655319、化合物
反応式
[CH:1](=[C:5]1/[C:6]([O:11]C)=[CH:7][C:8](=[O:10])[NH:9]/1)\[CH:2]([CH3:4])[CH3:3].Cl>[OH-].[Na+]>[CH:1](=[C:5]1/[C:6](=[O:11])[CH2:7][C:8](=[O:10])[NH:9]/1)\[CH:2]([CH3:4])[CH3:3]参加物
4
実験手順
50 g of finely powdered (Z)-5-isobutylidene-4-methoxy-3-pyrroline-2-one was stirred with 500 ml of concentrated hydrochloric acid for 5 hours at room temperature. The mixture was then stirred 5 hours at room temperature and slowly mixed with 1 liter of 14 percent sodium hydroxide solution. The precipitated yellow product was filtered off, washed with cold water and dried in a vacuum drying cabinet. The yield of the title compound was 42.0 g (92 percent of theory). The title compound had a melting point of 134° to 136° C. (THF/hexane).
後処理
- filtrationThe precipitated yellow product was filtered off
- washwashed with cold water
- customdried in a vacuum
- customdrying cabinet
出典と根拠
- ORDレコード
- ord-1a769d58b3c4436e9068ff0c14c46656
- 出典データセット
- uspto-grants-1994_10
- 特許番号
- US05352801
反応ノート
読み込み中…