Aroyl- and arylsulphonyl-sulphamic acids
Abstract
Condensation of certain nitroaroyl and nitroarylsulphonyl chlorides with sulphamic or methylsulphamic acid in pyridine affords good yields of the corresponding nitroaroyl- or nitroarylsulphonyl-sulphamic acids, which may be reduced to amines without loss of the labile sulphonic acid group.