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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 466310Generated: October 31, 2026

4-Aminophenol → Acetaminophen

https://huagongshe.com/reaction/466310

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-AminophenolHCID 403—
ReactantAcetic AnhydrideHCID 7918—
ProductAcetaminophenHCID 1983—

Reaction Steps

A process as set forth in claim 22 wherein acetic anhydride is reacted with the p-aminophenol contained in said purified raffinate to produce N-acetyl-p-aminophenol, and N-acetyl-p-aminophenol is recovered from the acetylation reaction mixture.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05155269
Source datasetuspto-grants-1992_10
ORD IDord-7f5fa297fb6642a2969603476cdfd74b
Source noteuspto-grants-1992_10