1,3-Diethyl 2-oxopropanedioate → HCID 13014080、化合物
反応式
[I:1][C:2]1[C:7]([I:8])=[CH:6][C:5]([NH2:9])=[C:4]([NH2:10])[CH:3]=1.O=[C:12]([C:18](OCC)=[O:19])[C:13]([O:15][CH2:16][CH3:17])=[O:14]>C(O)C>[I:1][C:2]1[CH:3]=[C:4]2[C:5](=[CH:6][C:7]=1[I:8])[N:9]=[C:12]([C:13]([O:15][CH2:16][CH3:17])=[O:14])[C:18](=[O:19])[NH:10]2参加物
4
実験手順
A solution was prepared from 0.9 g. of 4,5-diiodo-o-phenylenediamine and 25 ml. of ethanol. Five grams of diethyl ketomalonate were added and the resulting mixture was heated to refluxing temperature with stirring overnight. The reaction mixture was then cooled. Ethyl 6,7-diiodo-3,4-dihydro-3-oxo-2-quinoxaline carboxylate formed in the above reaction precipitated and was collected by filtration; yield=0.8 g.; mp=275°-276° C.
後処理
- customA solution was prepared from 0.9 g
- temperaturethe resulting mixture was heated
- temperatureto refluxing temperature
- temperatureThe reaction mixture was then cooled
出典と根拠
- ORDレコード
- ord-680efd81620e40989b7f69bebfab4c81
- 出典データセット
- uspto-grants-1981_04
- 特許番号
- US04264600
反応ノート
読み込み中…