Thionyl Chloride → HCID 86723322, Verbindung
Reaktionsgleichung
[Cl:1][C:2]1[CH:18]=[CH:17][CH:16]=[C:15]([N+:19]([O-:21])=[O:20])[C:3]=1[C:4]([NH:6][C:7]1[CH:12]=[CH:11][N:10]=[C:9]([Cl:13])[C:8]=1[F:14])=O.S(Cl)([Cl:24])=O>>[Cl:1][C:2]1[CH:18]=[CH:17][CH:16]=[C:15]([N+:19]([O-:21])=[O:20])[C:3]=1[C:4]([Cl:24])=[N:6][C:7]1[CH:12]=[CH:11][N:10]=[C:9]([Cl:13])[C:8]=1[F:14]Komponenten
3
Versuchsvorschrift
A stirred solution of 2-chloro-N-(2-chloro-3-fluoropyridin-4-yl)-6-nitrobenzamide (4.27 g, 12.9 mmol) in thionyl chloride (60 mL) was heated at 85° C. for 2 days under a nitrogen atmosphere. After cooling to room temperature, the volatiles were removed under reduced pressure and the resultant residue was purified by column chromatography on silica gel eluting with 0-30% ethyl acetate in petroleum ether (40-60° C.), to afford the title compound as a cream solid (3.90 g, 87% yield). 1H NMR (400 MHz, CDCl3): δ 8.27-8.20 (m, 2H), 7.88 (dd, J=1.1, 8.1 Hz, 1H), 7.66 (t, J=8.2 Hz, 1H), 6.95 (t, J=5.2 Hz, 1H).
Aufarbeitung
- customthe volatiles were removed under reduced pressure