Methylamine → (2-Bromo-3-fluoro-6-nitrophenyl)methylamine
反応式
CN.[Br:3][C:4]1[C:9](F)=[C:8]([N+:11]([O-:13])=[O:12])[CH:7]=[CH:6][C:5]=1[F:14].C[CH2:16][N:17](C(C)C)C(C)C>C1COCC1>[Br:3][C:4]1[C:5]([F:14])=[CH:6][CH:7]=[C:8]([N+:11]([O-:13])=[O:12])[C:9]=1[CH2:16][NH2:17]参加物
5
実験手順
Methylamine (2M in THF, 19 mL, 38.1 mmol) was added to a solution of 2-bromo-1,3-difluoro-4-nitrobenzene (4.53 g, 19 mmol) and DIPEA (6.8 mL, 38.1 mmol) in THF (70 mL) and the resultant mixture stirred at 60° C. for 3 h. The reaction mixture was concentrated in vacuo and the residue purified by chromatography eluting with (SiO2 0-80% DCM in cyclohexane) to give title compound as an orange/yellow solid (4.32 g, 91%). LCMS (Method C): RT 3.46 min [M+H]+ 249.0, 251.0.
後処理
- concentrationThe reaction mixture was concentrated in vacuo
- customthe residue purified by chromatography
- washeluting with (SiO2 0-80% DCM in cyclohexane)
出典と根拠
- ORDレコード
- ord-97e3b0a0e1b14419b3bb23f6c34ccc5b
- 出典データセット
- uspto-grants-2014_02
- 特許番号
- US08653089B2
反応ノート
読み込み中…