Maleic Anhydride → 2,5-Dioxo-2,5-dihydrofuran-3-sulfonic acid

HRID 2259162Notes

Reaction equation

[S:1](=[O:4])(=[O:3])=[O:2].[C:5]1(=[O:11])[O:10][C:8](=[O:9])[CH:7]=[CH:6]1>>[S:1]([C:7]1[C:8]([O:10][C:5](=[O:11])[CH:6]=1)=[O:9])([OH:4])(=[O:3])=[O:2]

Participants

Reactant 2

HCID 7923Maleic Anhydride

HCID 24682Sulfur trioxide

Product 1

HCID 124798802,5-Dioxo-2,5-dihydrofuran-3-sulfonic acid

Procedure

Sulfur trioxide reacts with maleic anhydride to afford sulfo maleic anhydride (SMA) according to the following reaction scheme: ##STR3##

Sources & evidence

ORD record: ord-093bedc92e06456bb5b8cbb14ed7e13c
Source dataset: uspto-grants-1995_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US05472642

Reaction notes

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