Sulfamation

In organic chemistry sulfamation is the installation of either of two related functional groups, sulfamic acid (R2NSO3H) and sulfamate (R2NSO3−). Typical methods entail reaction of primary amines with sources of sulfur trioxide such as pyridine-sulfur trioxide:[1]

RNH2 + SO3 → RNHSO3H

Sulfamation can also be effected by treating the amine with the sulfate ester of catechol (C6H4O2SO2).

References
  1. DuBois, Grant E.; Stephenson, Rebecca A. (1980). "Sulfonylamine-Mediated Sulfamation of Amines. A Mild, High Yield Synthesis of Sulfamic Acid Salts". The Journal of Organic Chemistry. 45 (26): 5371–5373. doi:10.1021/jo01314a033.
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