反应详情

182.4 g (0.500 mol) of N-(2-chloro-4-fluoro-3-nitrobenzoyl)-N′-isopropyl-N′-methylsulfamide in 391 g of methanol were admixed with 1.33 g (0.005 mol %) of 1% Pt-2% V/C and hydrogenated with 5 bar of hydrogen with stirring at 60° C. After 6 h the solution was depressurized, the reaction mixture was filtered and the solvent was removed by distillation. This gave 157.1 g (97%) of the title compound in the form of a solid (m.p.: 147-149° C.).

1. filtrationthe reaction mixture was filtered
2. customthe solvent was removed by distillation