1,2-Dibromoethane → 2,3-dihydro-2,2-dimethyl-7-(2-bromoethoxy)-4H-1,3-benzoxazin-4-one
反応式
[CH3:1][C:2]1([CH3:14])[NH:7][C:6](=[O:8])[C:5]2[CH:9]=[CH:10][C:11]([OH:13])=[CH:12][C:4]=2[O:3]1.[Br:15][CH2:16][CH2:17]Br>C(O)(C)C>[CH3:1][C:2]1([CH3:14])[NH:7][C:6](=[O:8])[C:5]2[CH:9]=[CH:10][C:11]([O:13][CH2:17][CH2:16][Br:15])=[CH:12][C:4]=2[O:3]1参加物
4
実験手順
16.2 g of 2,3-dihydro-2,2-dimethyl-7-hydroxy-4H-1,3-benzoxazin-4-one are reacted analogously to Example (3a) with 84 ml of 1,2-dibromoethane and yield 2,3-dihydro-2,2-dimethyl-7-(2-bromoethoxy)-4H-1,3-benzoxazin-4-one having a melting point of 156°-158° (from isopropanol).
出典と根拠
- ORDレコード
- ord-1b52e7de41e1401c8a5258398141f605
- 出典データセット
- uspto-grants-1988_02
- 特許番号
- US04727067
反応ノート
読み込み中…