Sulfamic Acid → Imidodisulfurylchloride

HRID 530177Notes

Reaction equation

[S:1](=[O:5])(=O)([OH:3])[NH2:2].[Cl:6][S:7]([OH:10])(=O)=[O:8].S(Cl)([Cl:13])=O>>[NH:2]([S:1]([Cl:13])(=[O:5])=[O:3])[S:7]([Cl:6])(=[O:10])=[O:8]

Participants

Reactant 3

HCID 5987Sulfamic Acid

HCID 24386Thionyl Chloride

HCID 24638Chlorosulfonic acid

Product 1

HCID 9837260Imidodisulfurylchloride

Procedure

The reaction of sulphamic acid with chlorosulphonic acid and thionyl chloride gives HN(SO2Cl)2. This reaction also provides by-products including sulphur dioxide, sulphuric acid and hydrochloric acid. Sulphur dioxide is generated from the reaction of thionyl chloride with sulphamic acid. Thus generation of sulphur dioxide indicates continuation of the reaction. Thus the heating is continued until generation of sulphur dioxide is ceased.

Sources & evidence

ORD record: ord-4d69ea07a0c846459fc36bed5399778d
Source dataset: uspto-grants-2016_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09352966B2

Reaction notes

Loading…