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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 963362Generated: October 31, 2026

Acetic Anhydride → HCID 23269435, compound

https://huagongshe.com/reaction/963362

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
Reactant1-(8-Amino-2,3-dihydro-1,4-benzodioxin-5-yl)ethan-1-oneHCID 23269238—
SolventPyridineHCID 1049—
ProductHCID 23269435HCID 23269435—

Reaction Steps

A solution of 4'-amino-2',3'-ethylenedioxyacetophenone (310 mg, 1.60 mmol) in 2.3 mL of pyridine under nitrogen was cooled in an ice/water bath and 6.9 mL of acetic anhydride was added drop-wise. The mixture was allowed to warm to room temperature and then stirred for 16 hours. The mixture was concentrated by rotary evaporation and the residue was stirred into water. The residue was isolated by filtration and washed with water. Drying gave 2',3'-ethylenedioxy-4'-(methylcarbonylamino)acetophenone (289 mg, 1.23 mmol), m.p. 142°-144° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05763458
Source datasetuspto-grants-1998_06
ORD IDord-c9e983c9e863487b86d474e32b314b21
Source noteuspto-grants-1998_06