Sulfuric Acid → Sulfanilic acid

HRID 1973743Notes

Reaction equation

[C:1]1([N:7]=C=O)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[S:10](=O)(=[O:13])([OH:12])[OH:11]>>[S:10]([OH:13])(=[O:12])([C:4]1[CH:5]=[CH:6][C:1]([NH2:7])=[CH:2][CH:3]=1)=[O:11]

Participants

Reactant 2

HCID 1118Sulfuric Acid

HCID 7672Phenyl isocyanate

Product 1

HCID 8479Sulfanilic acid

Procedure

The reaction of phenyl isocyanate with sulfuric acid is reported by Bieber [J. Am. Chem. Soc. 75, 1405 (1953)] to give sulfanilic acid. ##STR1##

Sources & evidence

ORD record: ord-1b1fb5bfcd1544f9bc82980eaefb6f25
Source dataset: uspto-grants-1976_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US03998870

Reaction notes

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