HCID 20184509, Verbindung → HCID 20184521, Verbindung
Reaktionsgleichung
[NH:1]([C:5]1[CH:26]=[CH:25][C:8]2[N:9]=[C:10]([C:12]3[CH:17]=[CH:16][C:15]([O:18][S:19]([CH3:22])(=[O:21])=[O:20])=[CH:14][C:13]=3[O:23][CH3:24])[NH:11][C:7]=2[CH:6]=1)C(C)=O>Cl>[NH2:1][C:5]1[CH:26]=[CH:25][C:8]2[N:9]=[C:10]([C:12]3[CH:17]=[CH:16][C:15]([O:18][S:19]([CH3:22])(=[O:21])=[O:20])=[CH:14][C:13]=3[O:23][CH3:24])[NH:11][C:7]=2[CH:6]=1Komponenten
3
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 80 °C
Versuchsvorschrift
Five grams (13.3 mmol) of 5-acetamino-2-(2'-methoxy-4'-methanesulfonyloxy-phenyl)-benzimidazole were suspended in 150 ml of concentrated hydrochloric acid and stirred at 80° C. for two hours. After cooling, the crude product precipitated was subjected to suction filtration and chromatographed on 500 gm of aluminium oxide (neutral) (eluant: methylene chloride with 2.5% ethanol).
Aufarbeitung
- temperatureAfter cooling
- customthe crude product precipitated
- filtrationwas subjected to suction filtration
- customchromatographed on 500 gm of aluminium oxide (neutral) (eluant: methylene chloride with 2.5% ethanol)
Quellen und Nachweise
- ORD-Eintrag
- ord-cb051754562b4ab1aab842a5ea9d7e84
- Quelldatensatz
- uspto-grants-1986_04
- Patentnummer
- US04582837
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