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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1250090Generated: November 2, 2026

Hydrochloric Acid → HCID 23500200, compound

https://huagongshe.com/reaction/1250090

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPyridinium chlorideHCID 10176127—
ReactantHCID 11021491HCID 11021491—
ProductHCID 23500200HCID 2350020058%

Reaction Conditions

Temperature180 °C

Reaction Steps

3-methoxy-2-phenylbenzoic acid ethyl ester (0.53 g) and pyridine hydrochloride (6 g) were combined under nitrogen, then heated to 180° C. for 1 hour. The melt was poured into dilute aqueous hydrochloric acid and extracted with ethyl acetate. Purification by silica gel chromatography, eluting with hexane/acetone (2:1) with 0.5% acetic acid, gave 3-hydroxy-2-phenylbenzoic acid as a white solid (0.25 g, 58%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06335459B1
Source datasetuspto-grants-2002_01
ORD IDord-90a05877584449199a38e0fe1102b706
Source noteuspto-grants-2002_01