Methylamine → Ammonia
反応式
[CH3:1][NH2:2].[CH2:3]([N:10]1[CH2:19][CH2:18][C:17]2[N:16]=[C:15](Cl)[CH:14]=[CH:13][C:12]=2[CH2:11]1)[C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=1>CO>[NH3:10].[CH2:3]([N:10]1[CH2:19][CH2:18][C:17]2[N:16]=[C:15]([NH:2][CH3:1])[CH:14]=[CH:13][C:12]=2[CH2:11]1)[C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=1参加物
5
反応条件
- 温度
- 140 °C
実験手順
Liquid methylamine (20 mL) was added to a cooled (−70° C.) solution of 6-benzyl-2-chloro-5,6,7,8-tetrahydro[1,6]naphthyridine (WO 9830560) (5.5 g, 21.25 mmol) in methanol (30 mL). The mixture was heated to 140° C. in a sealed vessel for 72 hours, then cooled. The reaction mixture was evaporated under reduced pressure and the residual brown oil purified by column chromatography on silica gel using an elution gradient of dichloromethane:methanol:0.88 ammonia (97:3:0 to 96:4:0.5) to afford the title compound as a white solid, 2.97 g
後処理
- temperaturecooled
- customThe reaction mixture was evaporated under reduced pressure
- customthe residual brown oil purified by column chromatography on silica gel using an elution gradient of dichloromethane
出典と根拠
- ORDレコード
- ord-142ee26f74054094ba078c2602f8ef70
- 出典データセット
- uspto-grants-2005_08
- 特許番号
- US06936619B2
反応ノート
読み込み中…