Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 850519Generated: November 2, 2026

4-Aminobenzoic Acid → Benzoic Acid

https://huagongshe.com/reaction/850519

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Aminobenzoic AcidHCID 978—
ReactantMaleic AnhydrideHCID 7923—
SolventAcetoneHCID 180—
SolventMethanolHCID 887—
ProductBenzoic AcidHCID 243163.4%

Reaction Steps

Solution "A" was prepared by dissolving 42.6 grams of para-aminobenzoic acid in 300 ml acetone plus 50 ml of methyl alcohol. Solution "B" was prepared by dissolving 36.6 g of maleic anhydride in 100 ml acetone. Solution "B" was added to solution "A" in one shot at room temperature with stirring. The mixture was allowed to stir for one to two hours until a yellow precipitate was formed. The precipitate was then washed with fresh acetone and dried to yield approximately 62 grams of maleamidated benzoic acid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06017943
Source datasetuspto-grants-2000_01
ORD IDord-ede1f1de07384f4d91c75c87b3175d74
Source noteuspto-grants-2000_01