Diethyl (ethoxymethylene)malonate → HCID 23209189、化合物
反応式
[NH2:1][C:2]1[CH:3]=[CH:4][C:5]([CH2:8][CH3:9])=[N:6][CH:7]=1.C(O[CH:13]=[C:14]([C:20]([O:22][CH2:23][CH3:24])=[O:21])[C:15]([O:17][CH2:18][CH3:19])=[O:16])C>>[CH2:8]([C:5]1[N:6]=[CH:7][C:2]([NH:1][CH:13]=[C:14]([C:15]([O:17][CH2:18][CH3:19])=[O:16])[C:20]([O:22][CH2:23][CH3:24])=[O:21])=[CH:3][CH:4]=1)[CH3:9]参加物
3
実験手順
A mixture of 5-amino-2-ethylpyridine (17.6 g) and diethyl ethoxymethylenemalonate (23.25 g) was heated on a steam bath for 2.5 hours. The mixture was cooled in ice. The solid formed was ground up in petroleum ether, b.p. 60°-80° C. and then filtered to give diethyl 2-(6-ethyl-3-pyridylaminomethylene)malonate, m.p. 55°-57° C.
後処理
- temperaturewas heated on a steam bath for 2.5 hours
- temperatureThe mixture was cooled in ice
- customThe solid formed
- filtrationb.p. 60°-80° C. and then filtered
出典と根拠
- ORDレコード
- ord-90642106827f47e9a9fd2b954fa13ce2
- 出典データセット
- uspto-grants-1998_07
- 特許番号
- US05780482
反応ノート
読み込み中…