Ammonia → HCID 19856560、化合物
反応式
[CH2:1]([N:3]1[CH:8]=[C:7]([Br:9])[N:6]=[C:5](Br)[C:4]1=[O:11])[CH3:2].[NH3:12]>O1CCOCC1>[CH2:1]([N:3]1[CH:8]=[C:7]([Br:9])[N:6]=[C:5]([NH2:12])[C:4]1=[O:11])[CH3:2]参加物
4
実験手順
A mixture of 4.6 g of 1-ethyl-3,5-dibromopyrazin-2-one, 9.6 ml of dioxane and 6.4 ml of 30% ammonia is stirred at 20°-25° C. for 15 hours. The product is filtered off and washed with alcohol and ether to give 1.3 g of 1-ethyl-3-amino-5-bromo-pyrazin-2-one with a melting point of 227°-230° C.
後処理
- filtrationThe product is filtered off
- washwashed with alcohol and ether
出典と根拠
- ORDレコード
- ord-499d0d70d3b54040adafb75963cb4d10
- 出典データセット
- uspto-grants-1990_04
- 特許番号
- US04920223
反応ノート
読み込み中…