Chlorosuccinimide → HCID 16731659, Verbindung
Reaktionsgleichung
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([NH:8][C:9](=[O:19])[C:10]2[CH:15]=[CH:14][CH:13]=[C:12]([O:16][CH3:17])[C:11]=2[NH2:18])=[N:6][CH:7]=1.[Cl:20]N1C(=O)CCC1=O>C1C=CC=CC=1>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([NH:8][C:9](=[O:19])[C:10]2[CH:15]=[C:14]([Cl:20])[CH:13]=[C:12]([O:16][CH3:17])[C:11]=2[NH2:18])=[N:6][CH:7]=1Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 52.5 °C
Versuchsvorschrift
To N-(5-chloropyridin-2-yl)-2-amino-3-methoxybenzamide (39 g, 140 mmol) in benzene (2 L) was added N-chlorosuccinimide (20 g, 148 mmol) and the reaction heated at 50-55° C. After 24 hours the reaction was cooled to ambient temperature and concentrated of all volatiles in vacuo. The resulting solid was dissolved in ethyl acetate (1 L), washed with water (3×100 mL), dried over sodium sulfate, and concentrated. Recrystallization from benzene afforded 40 g (90% yield) of N-(5-chloropyridin-2-yl)-2-amino-3-methoxy-5-chlorobenzamide as off-white needles; NMR (CDCl3) 8.6 (br, 1), 8.3 (m, 2), 7.7 (dd, 1), 7.1 (d, 1), 6.8 (d, 1), 5.9 (br, 1), 3.9 (s, 3) ppm.