N-Iodosuccinimide → Methyl 4-bromo-2-iodophenylcarbamate
Reaktionsgleichung
[I:1]N1C(=O)CCC1=O.[CH3:9][O:10][C:11](=[O:20])[NH:12][C:13]1[CH:18]=[CH:17][C:16]([Br:19])=[CH:15][CH:14]=1>C(#N)C>[CH3:9][O:10][C:11](=[O:20])[NH:12][C:13]1[CH:18]=[CH:17][C:16]([Br:19])=[CH:15][C:14]=1[I:1]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
133 g (0.591 mol) N-iodosuccinimide and 5.0 mL (8.60 g, 0.0573 mol) trifuoromethanesulfonic acid were added to a solution of 130.0 g (0.5651 mol) of (4-bromo-phenyl)-carbamic acid methyl ester in 660 mL acetonitrile. The mixture was stirred at room temperature for 18 h. The precipitate was collected by filtration washed with 160 mL ice-cold acetonitrile and dried to constant weight to yield 187.0 g (92%) of the title compound as white crystals melting at 129.4-130.0° C.