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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 440820Generated: October 29, 2026

Hydrochloric Acid → N-(4-carboxy-phenyl)-N-methyl-terephthalamic acid

https://huagongshe.com/reaction/440820

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantN-(4-methoxycarbonylphenyl)-N-methyl-terephthalamic acid methyl esterHCID 54006989—
SolventAcetonitrileHCID 6342—
ProductN-(4-carboxy-phenyl)-N-methyl-terephthalamic acidHCID 22404898—

Reaction Steps

0.99 g of N-(4-methoxycarbonylphenyl)-N-methyl-terephthalamic acid methyl ester was dissolved in 10 ml of acetonitrile and treated with 10 ml of 1N sodium hydroxide solution and the reaction mixture was stirred at room temperature for 16 hours. The mixture was then acidified with 1N hydrochloric acid and the resulting precipitate was filtered off yielding N-(4-carboxy-phenyl)-N-methyl-terephthalamic acid, which was used directly in the next step.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05521160
Source datasetuspto-grants-1996_05
ORD IDord-148c016425eb4d998ae972f565a68b75
Source noteuspto-grants-1996_05