Methanesulfonyl chloride → HCID 10642083, Verbindung
Reaktionsgleichung
[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[S:12][C:11]([C:13]([NH2:15])=O)=[CH:10][C:9]=2[C:16]2[CH:21]=[CH:20][C:19]([S:22]([CH3:25])(=[O:24])=[O:23])=[CH:18][CH:17]=2)=[CH:4][CH:3]=1.CS(Cl)(=O)=O>N1C=CC=CC=1>[F:1][C:2]1[CH:3]=[CH:4][C:5]([C:8]2[S:12][C:11]([C:13]#[N:15])=[CH:10][C:9]=2[C:16]2[CH:21]=[CH:20][C:19]([S:22]([CH3:25])(=[O:24])=[O:23])=[CH:18][CH:17]=2)=[CH:6][CH:7]=1Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 50 °C
Versuchsvorschrift
A mixture of 5-(4-fluorophenyl)-4-[4-(methylsulfonyl)phenyl]thiophene-2-carboxamide (4.8 g) and methanesulfonyl chloride (8.8 g) in pyridine (25 ml) was stirred at 50° C. for 4 hours. The mixture was concentrated and the residue was triturated in dilute hydrochloric acid. The precipitates were collected and recrystallized from ethanol to give crystals of 5-(4-fluorophenyl)-4-[4-(methylsulfonyl)phenyl]thiophene-2-carbonitrile (3.6 g).