Phosphorus oxychloride → 3-(Butylamino)-5-cyano-2-phenoxybenzene-1-sulfonamide
반응식
[CH2:1]([NH:5][C:6]1[CH:7]=[C:8]([CH:12]=[C:13]([S:22](=[O:25])(=[O:24])[NH2:23])[C:14]=1[O:15][C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1)[C:9]([NH2:11])=O)[CH2:2][CH2:3][CH3:4].P(Cl)(Cl)(Cl)=O>>[CH2:1]([NH:5][C:6]1[CH:7]=[C:8]([CH:12]=[C:13]([S:22](=[O:25])(=[O:24])[NH2:23])[C:14]=1[O:15][C:16]1[CH:17]=[CH:18][CH:19]=[CH:20][CH:21]=1)[C:9]#[N:11])[CH2:2][CH2:3][CH3:4]참가 물질
3
반응 조건
- 온도
- 120 °C
실험 절차
A mixture of 3-n-butylamino-4-phenoxy-5-sulfamylbenzamide (8.5 g) and phosphorus oxychloride (25 ml) is heated at 120° C. for 2 hours. The mixture is then evaporated in vacuo and the residue is triturated with ice-water (120 ml) to yield crude 3-n-butylamino-4-phenoxy-5-sulfamylbenzonitrile. After filtration, carefully washing with water, drying and recrystallization from methanol, it is obtained with a melting point of 217°-218° C.
후처리
- customThe mixture is then evaporated in vacuo
- customthe residue is triturated with ice-water (120 ml)
출처 및 근거
- ORD 기록
- ord-f9b7c65bf13d476ca6ccbd888ac5e2a9
- 출처 데이터셋
- uspto-grants-1981_01
- 특허 번호
- US04247550
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