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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 259669Generated: October 25, 2026

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

https://huagongshe.com/reaction/259669

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 numberUS05523278
Source datasetuspto-grants-1996_06
ORD IDord-89b5131461cb4552905ee45876d6a515
Source noteuspto-grants-1996_06