4,5-diamino-1-naphthalenesulfonic acid Chemische Eigenschaften,Einsatz,Produktion Methoden
Synthese
1-Nitronaphthalene is sulfonated with oleum at 20℃, and the sulfonation mass is nitrated at 35℃. After quenching and liming out, the liquors are reduced with iron powder under slightly acidic conditions. After removal of iron residues, the product 4,5-diamino-1-naphthalenesulfonic acid is isolated in 40 % yield by acidifying and salting.
4,5-diamino-1-naphthalenesulfonic acid Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte