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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 375063Generated: October 25, 2026

Hydrochloric Acid → 4-chloro-N,2-dihydroxybenzamide

https://huagongshe.com/reaction/375063

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethyl 4-chloro-2-hydroxybenzoateHCID 327085—
ReactantHydroxyamine hydrochlorideHCID 443297—
ReactantSodium MethoxideHCID 10942334—
SolventMethanolHCID 887—
Product4-chloro-N,2-dihydroxybenzamideHCID 2781848—

Reaction Steps

Hydroxylamine hydrochloride (20.65 g, 0.297 mol) is added to a mixture of sodium methoxide (53 g, 0.99 mol) in methanol while maintaining the temperature below 10° C. A mixture of methyl 4-chlorosalicylate (46.2 g, 0.248 mol) in methanol is then added to the reaction mixture and the resultant mixture is stirred at room temperature for 10 days, acidified with concentrated hydrochloric acid (pH3) and filtered to give the title product as an off-white solid which is identified by NMR spectral analyses.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05484763
Source datasetuspto-grants-1996_01
ORD IDord-801d2079e4b3482bb1c0a6b6c972a329
Source noteuspto-grants-1996_01