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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 906478Generated: October 25, 2026

Acetic Anhydride → n'-(4-Methoxyphenyl)acetohydrazide

https://huagongshe.com/reaction/906478

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
Reactant(4-Methoxyphenyl)hydrazineHCID 77023—
SolventDiethyl EtherHCID 3283—
Productn'-(4-Methoxyphenyl)acetohydrazideHCID 236267—

Reaction Conditions

Temperature0 °C

Reaction Steps

10 g of 4-methoxyphenylhydrazine hydrochloride are dissolved in water and then triethylamine is added until the salt has been neutralized. Extraction is carried out with AcOEt and then the extract is evaporated to dryness to produce 8 g of precipitate composed of 4-methoxyphenylhydrazine. This compound is dissolved in 30 ml of ether and then a solution of 13 ml of acetic anhydride dissolved in 30 ml of ether is added dropwise. The mixture is stirred at 0° C. for 15 minutes and then the white precipitate formed is filtered off to produce 7.4 g of the expected compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08012991B2
Source datasetuspto-grants-2011_09
ORD IDord-e564ea718d3046edbac9dd5f197dc1c2
Source noteuspto-grants-2011_09