Acetic Anhydride → Methyl 6-(acetyloxy)-3-bromo-2-methylbenzoate
反応式
[Br:1][C:2]1[C:3]([CH3:13])=[C:4]([C:9]([OH:12])=[CH:10][CH:11]=1)[C:5]([O:7][CH3:8])=[O:6].[C:14](OC(=O)C)(=[O:16])[CH3:15]>N1C=CC=CC=1>[C:14]([O:12][C:9]1[C:4]([C:5]([O:7][CH3:8])=[O:6])=[C:3]([CH3:13])[C:2]([Br:1])=[CH:11][CH:10]=1)(=[O:16])[CH3:15]参加物
4
実験手順
A solution of Example 106B (1.05 g, 4.3 mmol) in pyridine (3 mL) was treated with acetic anhydride (0.82 mL, 8.6 mmol), stirred at room temperature for 2 hours, and partitioned between ethyl acetate and 2N HCl. The organic phase was washed sequentially with aqueous NaHCO3, water, and brine, dried (MgSO4), filtered, and concentrated to give 1.19 g (97% yield) of the desired product. MS (ESI(+)) m/e 304, 306 (M+H)+.
後処理
- custompartitioned between ethyl acetate and 2N HCl
- washThe organic phase was washed sequentially with aqueous NaHCO3, water, and brine
- dry with materialdried (MgSO4)
- filtrationfiltered
- concentrationconcentrated
出典と根拠
- ORDレコード
- ord-8d2bea2dd5c64e7892d9728472c51cdb
- 出典データセット
- uspto-grants-2006_10
- 特許番号
- US07129260B2
反応ノート
読み込み中…