Hydrazine → 5-Amino-N-methoxy-2-methylbenzenesulfonamide
反応式
[CH3:1][O:2][NH:3][S:4]([C:7]1[CH:12]=[C:11]([N+:13]([O-])=O)[CH:10]=[CH:9][C:8]=1[CH3:16])(=[O:6])=[O:5].NN>[Pd].C(O)C>[NH2:13][C:11]1[CH:10]=[CH:9][C:8]([CH3:16])=[C:7]([S:4]([NH:3][O:2][CH3:1])(=[O:5])=[O:6])[CH:12]=1参加物
5
実験手順
N-Methoxy-2-methyl-5-nitrobenzenesulfonamide (0.5 g, 2 mmol) was combined with 10% palladium on carbon (0.05 g), ethanol (10 mL), and hydrazine (1 mL) and heated at reflux for 18 h. The solution was filtered through celite, concentrated, and purified on silica gel with methanol in dichloromethane. Product was an off white solid (0.28 g, 1.3 mmoL). 1H NMR (300 MHz, d6-DMSO) δ10.3 (s, 1H), 7.11 (s, 1H), 7.02 (d, J=8.2 Hz, 1H), 6.7 (d, J=8.2 Hz, 1H), 5.37 (s, 2H), 3.57 (s, 3H), 2.38 (s, 3H).
後処理
- temperatureheated
- temperatureat reflux for 18 h
- filtrationThe solution was filtered through celite,
- concentrationconcentrated
- custompurified on silica gel with methanol in dichloromethane
出典と根拠
- ORDレコード
- ord-0e1782b7f1f14451bdd0067a8aabece7
- 出典データセット
- uspto-grants-2008_03
- 特許番号
- US07338959B2
反応ノート
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