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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 379021Generated: October 28, 2026

Hydrochloric Acid → Benzoic acid, 4-amino-3-hydroxy-, methyl ester

https://huagongshe.com/reaction/379021

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethanolHCID 887—
Reactant4-Amino-3-hydroxybenzoic acidHCID 137566—
ProductBenzoic acid, 4-amino-3-hydroxy-, methyl esterHCID 7020619—

Reaction Conditions

Temperature70 °C

Reaction Steps

HCl (g) was bubbled through a solution of 4-amino-3-hydroxybenzoic acid (7 g, 54.8 mmol) in MeOH (450 mL) until saturated then the mixture was heated at 70° C. for 16 hr. The mixture was concentrated in vacuo, the residue taken up in EtOAc, washed with saturated NaHCO3 then brine and dried (MgSO4). Removal of the solvent yielded the title compound as a brown solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06297239B1
Source datasetuspto-grants-2001_10
ORD IDord-b4142f4d19f74fa994c465cbe4b28e66
Source noteuspto-grants-2001_10