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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1262711Generated: November 3, 2026

Acetaminophen → N-(4-Methoxyphenyl)Acetamide

https://huagongshe.com/reaction/1262711

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetaminophenHCID 1983—
ReactantPotassium CarbonateHCID 11430—
ReactantDimethyl sulfiteHCID 69223—
ProductN-(4-Methoxyphenyl)AcetamideHCID 582773%

Reaction Conditions

Temperature70 °C

Reaction Steps

To a three-necked 100 ml flask equipped for reflux and fitted with a mechanical stirrer was added 10 ml (0.12 mol) of dimethyl sulfite, 2.0 g (0.014 mol) of potassium carbonate, and 5.0 g (0.033 mol) of p-acetamidophenol. The mixture was heated to 70° C. for six hours then quenched while hot with 50 ml of water. The solution was made basic with dilute caustic and the organic materials were extracted into methylene chloride. The extracts were concentrated in vacuo to give 2.0 g (73%) of p-acetamidoanisole (based on recovered starting material).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04453004
Source datasetuspto-grants-1984_06
ORD IDord-f2d791c25a1e4213b61f5237f83423d3
Source noteuspto-grants-1984_06