Methyl tetrahydro-2,5-dimethoxyfuroate → HCID 19702952、化合物
反応式
[NH2:1][C:2]1[CH:11]=[C:10]2[C:5]([NH:6][C:7](=[O:13])[C:8](=[O:12])[NH:9]2)=[CH:4][C:3]=1[Cl:14].[CH3:15][O:16][C:17]([C:19]1(OC)[CH2:23][CH2:22][CH:21](OC)O1)=[O:18]>C(O)(=O)C>[Cl:14][C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][C:2]=1[N:1]1[CH:21]=[CH:22][CH:23]=[C:19]1[C:17]([O:16][CH3:15])=[O:18])[NH:9][C:8](=[O:12])[C:7](=[O:13])[NH:6]2参加物
4
実験手順
10 g (47.25 mmol) of 7-amino-6-chloro-2,3(1H,4H)-quinoxalinedione and 8.9 g (47.25 mmol) of 2-methoxycarbonyl-2,5-dimethoxytetrahydrofuran in 150 ml of acetic acid were refluxed for 2 h. The precipitate was then filtered off with suction to yield 6.6 g (44%) of the product. Melting point >260° C.
後処理
- filtrationThe precipitate was then filtered off with suction
出典と根拠
- ORDレコード
- ord-40f4a5b08f4949d08a67859b43b688b5
- 出典データセット
- uspto-grants-1998_12
- 特許番号
- US05852017
反応ノート
読み込み中…