Iodine → Methyl 2-amino-4-chloro-5-iodobenzoate
Reaktionsgleichung
[CH3:1][O:2][C:3](=[O:15])[C:4]1[CH:9]=[CH:8][C:7]([Cl:10])=[CH:6][C:5]=1[NH:11]C(=O)C.[I:16]I>FC(F)(F)C([O-])=O.[Ag+]>[CH3:1][O:2][C:3](=[O:15])[C:4]1[CH:9]=[C:8]([I:16])[C:7]([Cl:10])=[CH:6][C:5]=1[NH2:11]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
To a suspension of 2-acetylamino-4-chlorobenzoic acid methyl ester (2.0 g in 80 mL of dry chloroform) and 2.5 g silver trifluoroacetate was added iodine (2.87 g in 40 mL chloroform) and the mixture stirred at room temperature. After 5 hours, the mixture was filtered over diatomaceous earth and the filtrate concentrated in vacuo. Purification of the resulting oil by flash chromatography on silica gel (hexane:ethyl acetate, 95:5; then 90:10) gave the title compound (2.26 g).