Hydrazine → 5-Amino-N-methoxy-2-methylbenzenesulfonamide
반응식
[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]=1참가 물질
5
실험 절차
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).
후처리
- temperatureheated
- temperatureat reflux for 18 h
- filtrationThe solution was filtered through celite,
- concentrationconcentrated
- custompurified on silica gel with methanol in dichloromethane
출처 및 근거
- ORD 기록
- ord-0e1782b7f1f14451bdd0067a8aabece7
- 출처 데이터셋
- uspto-grants-2008_03
- 특허 번호
- US07338959B2
반응 노트
불러오는 중…