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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1883697Generated: October 25, 2026

Hydrochloric Acid → 3-hydroxy-N-(2-hydroxyphenyl)benzamide

https://huagongshe.com/reaction/1883697

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant3-methoxy-N-(2-methoxyphenyl)benzamideHCID 902866—
ReactantPyridinium chlorideHCID 10176127—
Product3-hydroxy-N-(2-hydroxyphenyl)benzamideHCID 2350848527.1%

Reaction Conditions

Temperature190 °C

Reaction Steps

451 mg of 3-methoxy-N-(2-methoxyphenyl)benzamide and 1.58 g of pyridine hydrochloride were mixed, and stirred on an oil bath at 190° C. for 2 hours. After cooling, dilute hydrochloric acid was added to the reaction mixture, and the product was extracted with ethyl acetate. The extract was washed with a saturated aqueous solution of sodium hydrogen carbonate and dried over anhydrous sodium sulfate. After the solvent was distilled oft the resulting crude product was recrystallized from methanol to obtain 109 mg of 3-hydroxy-N-(2-hydroxyphenyl)benzamide.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06762205B1
Source datasetuspto-grants-2004_07
ORD IDord-6e4d1a4308d040539db3d1486d9713c0
Source noteuspto-grants-2004_07