Di-tert-butyl dicarbonate → [(3-Bromo-4-fluorophenyl)methyl]-carbamic acid tert-butyl ester
反応式
Cl.[Br:2][C:3]1[CH:4]=[C:5]([CH:8]=[CH:9][C:10]=1[F:11])[CH2:6][NH2:7].[O:12](C(OC(C)(C)C)=O)[C:13]([O:15][C:16]([CH3:19])([CH3:18])[CH3:17])=O>C(Cl)Cl.[OH-].[Na+]>[C:13]([NH:7][CH2:6][C:5]1[CH:8]=[CH:9][C:10]([F:11])=[C:3]([Br:2])[CH:4]=1)([O:15][C:16]([CH3:19])([CH3:18])[CH3:17])=[O:12]参加物
5
実験手順
To a solution of 3-bromo-4-fluorobenzylamine hydrochloride (10 g, 42 mmol) and TEA (10.5 g, 103 mmol) in 200 mL of CH2Cl2 was added BOC2O (9.1 g, 42 mmol) at RT. The resulting solution was stirred for 16 h. The solution was diluted with aq. 1 N NaOH and CH2Cl2. The organic layer was washed with brine, dried over Na2SO4, and concentrated to give N-Boc-(3-bromo-4-fluoro-benzyl)amine. MS (ES+): 305 (M+H)+; (ES−): 303 (M−H). Calc'd C12H15BrFNO2-304.16.
後処理
- washThe organic layer was washed with brine
- dry with materialdried over Na2SO4
- concentrationconcentrated
出典と根拠
- ORDレコード
- ord-1135b9cebe0c405697cd5feb0d493643
- 出典データセット
- uspto-grants-2006_09
- 特許番号
- US07101868B2
反応ノート
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